Nouakchott Weather Records (MR000001442)

Record envelope, standing records and threshold days for Nouakchott (MR000001442), Mauritania, with 79 years of record.

Key Facts for Nouakchott

Nouakchott (MR000001442) is a weather station in Mauritania at 18.12 latitude and -15.93 longitude, 5 m (16 ft) above sea level.
The station reports from 1945 to 2023, 79 years of record.
1,464 records set at Nouakchott still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Nouakchott set a monthly record high minimum temperature of 27.6 C (81.7 F) on 20 July 2023.

About the Station

Location: Mauritania, 18.12 latitude, -15.93 longitude.
Elevation: 5 m (16 ft).
Period of record: 1945 to 2023, 79 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Nouakchott. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Nouakchott, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	39.9 C (103.8 F)	3.9 C (39.0 F)	n/a	n/a
Feb	41.7 C (107.1 F)	7.0 C (44.6 F)	n/a	n/a
Mar	45.0 C (113.0 F)	9.2 C (48.6 F)	n/a	n/a
Apr	46.0 C (114.8 F)	10.0 C (50.0 F)	n/a	n/a
May	47.0 C (116.6 F)	10.2 C (50.4 F)	n/a	n/a
Jun	47.2 C (117.0 F)	13.4 C (56.1 F)	n/a	n/a
Jul	48.0 C (118.4 F)	13.5 C (56.3 F)	n/a	n/a
Aug	45.0 C (113.0 F)	17.6 C (63.7 F)	n/a	n/a
Sep	45.2 C (113.4 F)	16.0 C (60.8 F)	n/a	n/a
Oct	45.2 C (113.4 F)	12.3 C (54.1 F)	n/a	n/a
Nov	42.3 C (108.1 F)	8.2 C (46.8 F)	n/a	n/a
Dec	39.9 C (103.8 F)	5.0 C (41.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Nouakchott still stand. 1968 holds the most, with 51.

Standing records at Nouakchott by the year they were set
Year set	Standing records
1945	16
1946	13
1947	22
1948	18
1949	20
1950	16
1951	17
1952	31
1953	20
1954	11
1955	12
1956	30
1957	18
1958	30
1959	28
1960	36
1961	11
1962	21
1963	30
1964	27
1965	37
1966	20
1967	31
1968	51
1969	22
1970	16
1971	27
1972	49
1973	22
1974	25
1975	18
1976	28
1977	26
1978	15
1979	35
1980	36
1981	17
1982	12
1983	16
1984	12
1985	10
1986	13
1987	34
1988	16
1989	24
1990	23
1991	29
1992	16
1993	19
1994	22
1995	12
1996	9
1997	20
1998	15
1999	12
2000	7
2001	12
2002	6
2003	16
2004	11
2005	11
2006	11
2007	10
2008	8
2009	9
2010	12
2011	5
2012	6
2013	13
2014	13
2015	15
2016	22
2017	20
2020	16
2021	13
2023	12

All-Time Record Progression

6 new records

6 all-time records were set at Nouakchott between 22 May 1979 and 15 September 2021. Each dot is a new record.

When Nouakchott set new all-time records
Date	Kind	Detail
1979-05-22	Record high minimum temperature	Record high minimum temperature 30.4 C (86.7 F)
1979-09-29	Record high minimum temperature	Record high minimum temperature 30.5 C (86.9 F)
1990-01-29	Record daily precipitation	Record daily precipitation 108.0 mm (4.3 in)
1996-05-09	Record daily precipitation	Record daily precipitation 179.1 mm (7.1 in)
2015-07-04	Record high maximum temperature	Record high maximum temperature 48.0 C (118.4 F)
2021-09-15	Record high minimum temperature	Record high minimum temperature 30.7 C (87.3 F)

Wettest Day of Each Month

May: 179.1 mm (7.1 in)

The wettest day on record for each calendar month at Nouakchott. The most was 179.1 mm (7.1 in) on 9 May 1996.

Record daily precipitation for each month at Nouakchott
Month	Record daily precipitation (mm)	Date
Jan	108.0 mm (4.3 in)	29 January 1990
Feb	13.7 mm (0.5 in)	9 February 1968
Mar	25.1 mm (1.0 in)	13 March 1972
Apr	3.5 mm (0.14 in)	16 April 1976
May	179.1 mm (7.1 in)	9 May 1996
Jun	14.0 mm (0.6 in)	28 June 2005
Jul	99.1 mm (3.9 in)	7 July 2000
Aug	88.9 mm (3.5 in)	26 August 1997
Sep	70.2 mm (2.8 in)	21 September 1956
Oct	34.0 mm (1.3 in)	14 October 1993
Nov	59.9 mm (2.4 in)	5 November 1992
Dec	51.1 mm (2.0 in)	1 December 1995

Period of Record Coverage

1945 to 2018

74 years of record at Nouakchott, 1945 to 2018. 39 years have data for under 90 percent of days and are left out of rankings: 1966, 1981, 1982, 1983, 1984, 1985, 1986, 1987 and others.

Days with data per year at Nouakchott
Year	Days with data	Share of year	Complete
1945	365	100%	Yes
1946	365	100%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	365	100%	Yes
1950	351	96%	Yes
1951	364	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	364	99%	Yes
1957	365	100%	Yes
1958	364	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	364	99%	Yes
1965	365	100%	Yes
1966	274	75%	No
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	356	98%	Yes
1976	366	100%	Yes
1977	364	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	301	82%	No
1982	251	69%	No
1983	277	76%	No
1984	301	82%	No
1985	298	82%	No
1986	271	74%	No
1987	272	75%	No
1988	268	73%	No
1989	266	73%	No
1990	241	66%	No
1991	245	67%	No
1992	310	85%	No
1993	300	82%	No
1994	314	86%	No
1995	278	76%	No
1996	251	69%	No
1997	213	58%	No
1998	230	63%	No
1999	204	56%	No
2000	250	68%	No
2001	215	59%	No
2002	201	55%	No
2003	172	47%	No
2004	225	61%	No
2005	242	66%	No
2006	236	65%	No
2007	263	72%	No
2008	276	75%	No
2009	321	88%	No
2010	281	77%	No
2011	309	85%	No
2012	272	74%	No
2013	309	85%	No
2014	279	76%	No
2015	306	84%	No
2016	283	77%	No
2017	308	84%	No
2018	3	1%	No

Latest Records

Latest records at Nouakchott
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 2023	Nouakchott, MR	monthly high min	27.6 C (81.7 F)	0.1 C (0.2 F)	46 years	31 of 100 (Routine)
19 July 2023	Nouakchott, MR	daily high min	26.8 C (80.2 F)	0.6 C (1.1 F)	40 years	23 of 100 (Routine)
16 July 2023	Nouakchott, MR	daily high min	26.4 C (79.5 F)	0.6 C (1.1 F)	28 years	19 of 100 (Routine)
15 July 2023	Nouakchott, MR	daily high min	26.8 C (80.2 F)	1.6 C (2.9 F)	70 years	38 of 100 (Notable)
13 July 2023	Nouakchott, MR	daily high min	26.6 C (79.9 F)	0.4 C (0.7 F)	70 years	30 of 100 (Routine)
7 July 2023	Nouakchott, MR	daily high min	26.2 C (79.2 F)	0.3 C (0.5 F)	72 years	30 of 100 (Routine)
12 June 2023	Nouakchott, MR	daily high min	26.3 C (79.3 F)	0.7 C (1.3 F)	52 years	25 of 100 (Routine)
11 June 2023	Nouakchott, MR	daily high min	27.0 C (80.6 F)	0.6 C (1.1 F)	38 years	20 of 100 (Routine)
31 May 2023	Nouakchott, MR	daily high min	26.1 C (79.0 F)	0.7 C (1.3 F)	8 years	11 of 100 (Routine)
4 May 2023	Nouakchott, MR	daily high min	24.7 C (76.5 F)	2.7 C (4.9 F)	41 years	30 of 100 (Routine)
22 April 2023	Nouakchott, MR	daily rain	0.3 mm (0.01 in)	0.3 mm (0.01 in)	77 years	20 of 100 (Routine)
14 April 2023	Nouakchott, MR	daily rain	0.5 mm (0.02 in)	0.5 mm (0.02 in)	77 years	20 of 100 (Routine)
3 April 2023	Nouakchott, MR	daily high min	24.1 C (75.4 F)	0.8 C (1.4 F)	1 year	10 of 100 (Routine)
25 March 2023	Nouakchott, MR	daily rain	0.3 mm (0.01 in)	0.3 mm (0.01 in)	77 years	20 of 100 (Routine)
24 March 2023	Nouakchott, MR	daily rain	0.3 mm (0.01 in)	0.2 mm (0.01 in)	46 years	20 of 100 (Routine)
13 February 2023	Nouakchott, MR	daily high min	21.5 C (70.7 F)	0.4 C (0.7 F)	3 years	8 of 100 (Routine)
20 November 2021	Nouakchott, MR	daily high min	24.1 C (75.4 F)	0.1 C (0.2 F)	4 years	8 of 100 (Routine)
31 October 2021	Nouakchott, MR	daily high min	24.9 C (76.8 F)	0.6 C (1.1 F)	63 years	27 of 100 (Routine)
26 October 2021	Nouakchott, MR	daily high min	26.1 C (79.0 F)	0.1 C (0.2 F)	42 years	19 of 100 (Routine)
15 September 2021	Nouakchott, MR	all-time high min	30.7 C (87.3 F)	0.2 C (0.4 F)	41 years	40 of 100 (Notable)

Climate Trend

34 complete years, 1945 to 1980

One stripe for each of 34 complete years at Nouakchott, 1945 to 1980. Blue stripes are years cooler than the station's own mean of 26.0 C (78.7 F); red stripes are warmer. The coolest year was 1968, at 24.9 C (76.9 F), and the warmest was 1958, at 27.0 C (80.6 F). The strongest colour marks a difference of 1.1 C (2.0 F).

Annual mean temperature at Nouakchott as warming stripes, 1945 to 1980
Year	Annual mean temperature	Difference from the station mean
1945	26.5 C	+0.52 C
1946	25.6 C	-0.33 C
1947	25.8 C	-0.14 C
1948	25.7 C	-0.28 C
1949	25.8 C	-0.14 C
1951	25.6 C	-0.41 C
1952	25.6 C	-0.38 C
1953	25.9 C	-0.05 C
1954	26.0 C	+0.07 C
1955	26.5 C	+0.57 C
1956	25.7 C	-0.23 C
1957	25.7 C	-0.25 C
1958	27.0 C	+1.02 C
1959	26.0 C	+0.06 C
1960	26.3 C	+0.36 C
1961	26.7 C	+0.75 C
1962	26.4 C	+0.48 C
1963	26.6 C	+0.65 C
1964	25.4 C	-0.52 C
1965	25.1 C	-0.89 C
1967	25.2 C	-0.73 C
1968	24.9 C	-1.04 C
1969	26.8 C	+0.81 C
1970	26.5 C	+0.55 C
1971	25.7 C	-0.29 C
1972	25.4 C	-0.54 C
1973	26.2 C	+0.24 C
1974	25.1 C	-0.86 C
1975	25.8 C	-0.12 C
1976	25.6 C	-0.35 C
1977	26.6 C	+0.66 C
1978	26.1 C	+0.16 C
1979	26.7 C	+0.72 C
1980	25.8 C	-0.21 C

The fitted trend in annual mean temperature here over 1945 to 1980 is 0.00 C (-0.18 to 0.19) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.01 F (-0.32 to 0.34) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Nouakchott
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.00 C (-0.18 to 0.19) per decade	0.01 F (-0.32 to 0.34) per decade	1945 to 1980	34	Not clearly different from zero
Mean daily maximum	-0.03 C (-0.30 to 0.24) per decade	-0.1 F (-0.5 to 0.4) per decade	1945 to 1980	34	Not clearly different from zero
Mean daily minimum	0.04 C (-0.14 to 0.22) per decade	0.1 F (-0.3 to 0.4) per decade	1945 to 1980	34	Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1945 to 2023

Yearly extremes at Nouakchott: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.0 C (118.4 F)	2015	45.2 C (113.3 F)	74
Coldest night (TNn)	3.9 C (39.0 F)	1956	9.5 C (49.1 F)	79
Wettest day (Rx1day)	179.1 mm (7.1 in)	1996	26.9 mm (1.1 in)	75
Wettest five days (Rx5day)	148.1 mm (5.8 in)	1998	37.4 mm (1.5 in)	45
Longest dry spell (CDD)	239 days	1977	10 days	75

Hottest day (TXx)

The hottest day of the year at Nouakchott, 1945 to 2023. The record is 48.0 C (118.4 F) in 2015, marked on the chart; the median year is 45.2 C (113.3 F).

Hottest day (TXx) at Nouakchott by year
Year	Hottest day (TXx)
1945	44.5 C (112.1 F)
1946	44.1 C (111.4 F)
1947	45.2 C (113.4 F)
1948	45.2 C (113.4 F)
1949	44.5 C (112.1 F)
1950	45.6 C (114.1 F)
1951	46.0 C (114.8 F)
1952	45.6 C (114.1 F)
1953	44.4 C (111.9 F)
1954	44.6 C (112.3 F)
1955	43.0 C (109.4 F)
1956	45.0 C (113.0 F)
1957	46.0 C (114.8 F)
1958	47.0 C (116.6 F)
1959	46.3 C (115.3 F)
1960	44.3 C (111.7 F)
1961	47.2 C (117.0 F)
1962	44.2 C (111.6 F)
1963	45.3 C (113.5 F)
1964	44.2 C (111.6 F)
1965	44.6 C (112.3 F)
1966	45.0 C (113.0 F)
1967	45.6 C (114.1 F)
1968	45.2 C (113.4 F)
1969	45.2 C (113.4 F)
1970	45.3 C (113.5 F)
1971	44.0 C (111.2 F)
1972	44.0 C (111.2 F)
1973	46.0 C (114.8 F)
1974	44.7 C (112.5 F)
1975	45.6 C (114.1 F)
1976	44.8 C (112.6 F)
1977	45.5 C (113.9 F)
1978	44.5 C (112.1 F)
1979	46.2 C (115.2 F)
1980	44.5 C (112.1 F)
1981	47.0 C (116.6 F)
1982	43.7 C (110.7 F)
1983	44.2 C (111.6 F)
1984	46.2 C (115.2 F)
1985	44.0 C (111.2 F)
1986	45.8 C (114.4 F)
1987	45.0 C (113.0 F)
1988	46.0 C (114.8 F)
1989	44.5 C (112.1 F)
1990	45.0 C (113.0 F)
1991	45.0 C (113.0 F)
1992	44.7 C (112.5 F)
1993	44.5 C (112.1 F)
1994	44.5 C (112.1 F)
1995	46.5 C (115.7 F)
1996	46.7 C (116.1 F)
1997	47.0 C (116.6 F)
1998	43.6 C (110.5 F)
1999	46.8 C (116.2 F)
2000	45.0 C (113.0 F)
2001	45.1 C (113.2 F)
2002	44.8 C (112.6 F)
2003	46.5 C (115.7 F)
2004	45.0 C (113.0 F)
2005	44.9 C (112.8 F)
2006	46.7 C (116.1 F)
2007	45.3 C (113.5 F)
2008	45.2 C (113.4 F)
2009	44.2 C (111.6 F)
2010	46.1 C (115.0 F)
2011	44.2 C (111.6 F)
2012	46.3 C (115.3 F)
2013	46.1 C (115.0 F)
2014	46.0 C (114.8 F)
2015	48.0 C (118.4 F)
2016	45.2 C (113.4 F)
2017	46.5 C (115.7 F)
2018	31.3 C (88.3 F)
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a

Coldest night (TNn)

The coldest night of the year at Nouakchott, 1945 to 2023. The record is 3.9 C (39.0 F) in 1956, marked on the chart; the median year is 9.5 C (49.1 F).

Coldest night (TNn) at Nouakchott by year
Year	Coldest night (TNn)
1945	8.3 C (46.9 F)
1946	7.4 C (45.3 F)
1947	5.7 C (42.3 F)
1948	6.5 C (43.7 F)
1949	7.5 C (45.5 F)
1950	8.4 C (47.1 F)
1951	8.0 C (46.4 F)
1952	6.6 C (43.9 F)
1953	7.8 C (46.0 F)
1954	9.4 C (48.9 F)
1955	9.0 C (48.2 F)
1956	3.9 C (39.0 F)
1957	9.5 C (49.1 F)
1958	8.0 C (46.4 F)
1959	6.7 C (44.1 F)
1960	7.7 C (45.9 F)
1961	8.4 C (47.1 F)
1962	7.2 C (45.0 F)
1963	5.4 C (41.7 F)
1964	6.6 C (43.9 F)
1965	4.2 C (39.6 F)
1966	8.9 C (48.0 F)
1967	5.0 C (41.0 F)
1968	6.0 C (42.8 F)
1969	11.2 C (52.2 F)
1970	7.8 C (46.0 F)
1971	7.8 C (46.0 F)
1972	8.7 C (47.7 F)
1973	8.8 C (47.8 F)
1974	8.5 C (47.3 F)
1975	8.4 C (47.1 F)
1976	9.9 C (49.8 F)
1977	8.8 C (47.8 F)
1978	9.5 C (49.1 F)
1979	11.0 C (51.8 F)
1980	9.6 C (49.3 F)
1981	12.0 C (53.6 F)
1982	11.9 C (53.4 F)
1983	11.3 C (52.3 F)
1984	9.4 C (48.9 F)
1985	9.7 C (49.5 F)
1986	6.5 C (43.7 F)
1987	10.5 C (50.9 F)
1988	10.5 C (50.9 F)
1989	7.8 C (46.0 F)
1990	6.0 C (42.8 F)
1991	12.0 C (53.6 F)
1992	11.5 C (52.7 F)
1993	10.0 C (50.0 F)
1994	9.5 C (49.1 F)
1995	10.0 C (50.0 F)
1996	11.5 C (52.7 F)
1997	11.5 C (52.7 F)
1998	11.0 C (51.8 F)
1999	8.2 C (46.8 F)
2000	10.5 C (50.9 F)
2001	11.0 C (51.8 F)
2002	10.2 C (50.4 F)
2003	8.5 C (47.3 F)
2004	11.5 C (52.7 F)
2005	11.2 C (52.2 F)
2006	13.5 C (56.3 F)
2007	11.5 C (52.7 F)
2008	16.6 C (61.9 F)
2009	13.5 C (56.3 F)
2010	20.7 C (69.3 F)
2011	11.4 C (52.5 F)
2012	10.5 C (50.9 F)
2013	19.2 C (66.6 F)
2014	5.6 C (42.1 F)
2015	12.8 C (55.0 F)
2016	12.0 C (53.6 F)
2017	8.0 C (46.4 F)
2018	14.4 C (57.9 F)
2019	12.3 C (54.1 F)
2020	8.0 C (46.4 F)
2021	11.0 C (51.8 F)
2022	17.7 C (63.9 F)
2023	11.5 C (52.7 F)

Wettest day (Rx1day)

The wettest day of the year at Nouakchott, 1945 to 2023. The record is 179.1 mm (7.1 in) in 1996, marked on the chart; the median year is 26.9 mm (1.1 in).

Wettest day (Rx1day) at Nouakchott by year
Year	Wettest day (Rx1day)
1945	76.4 mm (3.0 in)
1946	34.3 mm (1.4 in)
1947	38.0 mm (1.5 in)
1948	12.7 mm (0.5 in)
1949	26.0 mm (1.0 in)
1950	50.9 mm (2.0 in)
1951	32.0 mm (1.3 in)
1952	51.0 mm (2.0 in)
1953	26.3 mm (1.0 in)
1954	34.3 mm (1.4 in)
1955	32.2 mm (1.3 in)
1956	70.2 mm (2.8 in)
1957	24.3 mm (1.0 in)
1958	75.9 mm (3.0 in)
1959	20.1 mm (0.8 in)
1960	26.6 mm (1.0 in)
1961	19.4 mm (0.8 in)
1962	33.8 mm (1.3 in)
1963	37.2 mm (1.5 in)
1964	29.1 mm (1.1 in)
1965	64.9 mm (2.6 in)
1966	n/a
1967	45.0 mm (1.8 in)
1968	17.7 mm (0.7 in)
1969	34.2 mm (1.3 in)
1970	17.0 mm (0.7 in)
1971	4.5 mm (0.18 in)
1972	25.1 mm (1.0 in)
1973	50.2 mm (2.0 in)
1974	8.4 mm (0.33 in)
1975	46.5 mm (1.8 in)
1976	17.2 mm (0.7 in)
1977	1.6 mm (0.06 in)
1978	9.2 mm (0.36 in)
1979	23.8 mm (0.9 in)
1980	15.0 mm (0.6 in)
1981	38.1 mm (1.5 in)
1982	20.1 mm (0.8 in)
1983	5.1 mm (0.20 in)
1984	2.0 mm (0.08 in)
1985	5.1 mm (0.20 in)
1986	18.0 mm (0.7 in)
1987	23.1 mm (0.9 in)
1988	38.1 mm (1.5 in)
1989	46.0 mm (1.8 in)
1990	108.0 mm (4.3 in)
1991	65.0 mm (2.6 in)
1992	59.9 mm (2.4 in)
1993	53.1 mm (2.1 in)
1994	59.9 mm (2.4 in)
1995	66.0 mm (2.6 in)
1996	179.1 mm (7.1 in)
1997	88.9 mm (3.5 in)
1998	69.1 mm (2.7 in)
1999	5.1 mm (0.20 in)
2000	99.1 mm (3.9 in)
2001	53.1 mm (2.1 in)
2002	13.0 mm (0.5 in)
2003	3.0 mm (0.12 in)
2004	32.0 mm (1.3 in)
2005	26.9 mm (1.1 in)
2006	4.1 mm (0.16 in)
2007	3.0 mm (0.12 in)
2008	59.9 mm (2.4 in)
2009	32.0 mm (1.3 in)
2010	71.9 mm (2.8 in)
2011	74.9 mm (2.9 in)
2012	25.9 mm (1.0 in)
2013	25.9 mm (1.0 in)
2014	19.1 mm (0.8 in)
2015	23.1 mm (0.9 in)
2016	24.9 mm (1.0 in)
2017	3.0 mm (0.12 in)
2018	n/a
2019	n/a
2020	10.9 mm (0.4 in)
2021	5.1 mm (0.20 in)
2022	n/a
2023	0.5 mm (0.02 in)

Wettest five days (Rx5day)

The wettest five days of the year at Nouakchott, 1945 to 2023. The record is 148.1 mm (5.8 in) in 1998, marked on the chart; the median year is 37.4 mm (1.5 in).

Wettest five days (Rx5day) at Nouakchott by year
Year	Wettest five days (Rx5day)
1945	77.6 mm (3.1 in)
1946	51.0 mm (2.0 in)
1947	53.9 mm (2.1 in)
1948	12.7 mm (0.5 in)
1949	37.6 mm (1.5 in)
1950	98.3 mm (3.9 in)
1951	36.8 mm (1.4 in)
1952	83.9 mm (3.3 in)
1953	43.7 mm (1.7 in)
1954	34.8 mm (1.4 in)
1955	57.9 mm (2.3 in)
1956	135.4 mm (5.3 in)
1957	32.3 mm (1.3 in)
1958	103.2 mm (4.1 in)
1959	30.8 mm (1.2 in)
1960	49.1 mm (1.9 in)
1961	19.9 mm (0.8 in)
1962	42.1 mm (1.7 in)
1963	40.5 mm (1.6 in)
1964	31.7 mm (1.2 in)
1965	74.3 mm (2.9 in)
1966	n/a
1967	53.8 mm (2.1 in)
1968	26.1 mm (1.0 in)
1969	37.4 mm (1.5 in)
1970	17.7 mm (0.7 in)
1971	5.6 mm (0.22 in)
1972	38.7 mm (1.5 in)
1973	51.9 mm (2.0 in)
1974	14.2 mm (0.6 in)
1975	67.7 mm (2.7 in)
1976	21.3 mm (0.8 in)
1977	1.6 mm (0.06 in)
1978	9.4 mm (0.37 in)
1979	36.7 mm (1.4 in)
1980	21.2 mm (0.8 in)
1981	38.1 mm (1.5 in)
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	38.1 mm (1.5 in)
1988	n/a
1989	7.4 mm (0.29 in)
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	116.0 mm (4.6 in)
1996	n/a
1997	13.0 mm (0.5 in)
1998	148.1 mm (5.8 in)
1999	1.6 mm (0.06 in)
2000	n/a
2001	n/a
2002	n/a
2003	5.0 mm (0.20 in)
2004	0.0 mm (0.00 in)
2005	14.0 mm (0.6 in)
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Nouakchott, 1945 to 2023. The record is 239 days in 1977, marked on the chart; the median year is 10 days.

Longest dry spell (CDD) at Nouakchott by year
Year	Longest dry spell (CDD)
1945	193 days
1946	178 days
1947	183 days
1948	170 days
1949	196 days
1950	197 days
1951	86 days
1952	189 days
1953	121 days
1954	112 days
1955	158 days
1956	200 days
1957	170 days
1958	176 days
1959	169 days
1960	177 days
1961	205 days
1962	212 days
1963	143 days
1964	183 days
1965	189 days
1966	n/a
1967	173 days
1968	144 days
1969	184 days
1970	203 days
1971	215 days
1972	166 days
1973	212 days
1974	159 days
1975	109 days
1976	87 days
1977	239 days
1978	93 days
1979	184 days
1980	106 days
1981	20 days
1982	1 day
1983	1 day
1984	1 day
1985	2 days
1986	2 days
1987	2 days
1988	2 days
1989	6 days
1990	2 days
1991	2 days
1992	2 days
1993	1 day
1994	2 days
1995	2 days
1996	2 days
1997	9 days
1998	31 days
1999	6 days
2000	4 days
2001	4 days
2002	4 days
2003	10 days
2004	9 days
2005	9 days
2006	1 day
2007	1 day
2008	1 day
2009	1 day
2010	2 days
2011	1 day
2012	2 days
2013	1 day
2014	2 days
2015	3 days
2016	2 days
2017	1 day
2018	n/a
2019	n/a
2020	2 days
2021	2 days
2022	n/a
2023	3 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

35 years, 1945 to 1980

A day with at least 29.1 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 94.1 mm (3.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Nouakchott: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	29.1 mm (1.1 in)
5 years	46.7 mm (1.8 in)
10 years	58.3 mm (2.3 in)
25 years	72.9 mm (2.9 in)
50 years	83.6 mm (3.3 in)	Longer than the 35 years of record
100 years	94.1 mm (3.7 in)	Longer than the 35 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 35 years of values from 1945 to 1980.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 76.4 mm (3.0 in) in 1945; 75.9 mm (3.0 in) in 1958; 70.2 mm (2.8 in) in 1956.

Download the Data

Data for Nouakchott standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Nouakchott threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).