Siguiri Weather Records (GV000001811)

Record envelope, standing records and threshold days for Siguiri (GV000001811), Guinea, with 62 years of record.

Key Facts for Siguiri

Siguiri (GV000001811) is a weather station in Guinea at 11.43 latitude and -9.17 longitude, 362 m (1,188 ft) above sea level.
The station reports from 1945 to 2006, 62 years of record.
1,464 records set at Siguiri still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Guinea, 11.43 latitude, -9.17 longitude.
Elevation: 362 m (1,188 ft).
Period of record: 1945 to 2006, 62 years.
Eligible elements: none yet.

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 Siguiri. 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 Siguiri, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	39.5 C (103.1 F)	6.8 C (44.2 F)	n/a	n/a
Feb	40.5 C (104.9 F)	10.4 C (50.7 F)	n/a	n/a
Mar	41.6 C (106.9 F)	12.6 C (54.7 F)	n/a	n/a
Apr	42.5 C (108.5 F)	16.4 C (61.5 F)	n/a	n/a
May	41.5 C (106.7 F)	18.5 C (65.3 F)	n/a	n/a
Jun	39.6 C (103.3 F)	18.9 C (66.0 F)	n/a	n/a
Jul	35.5 C (95.9 F)	17.5 C (63.5 F)	n/a	n/a
Aug	33.0 C (91.4 F)	16.0 C (60.8 F)	n/a	n/a
Sep	34.4 C (93.9 F)	17.9 C (64.2 F)	n/a	n/a
Oct	36.4 C (97.5 F)	16.4 C (61.5 F)	n/a	n/a
Nov	37.0 C (98.6 F)	10.2 C (50.4 F)	n/a	n/a
Dec	37.2 C (99.0 F)	7.8 C (46.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Siguiri still stand. 1945 holds the most, with 137.

Standing records at Siguiri by the year they were set
Year set	Standing records
1945	137
1946	113
1947	135
1948	132
1949	115
1950	85
1951	87
1952	64
1953	91
1954	87
1955	75
1956	88
1957	67
1958	61
1975	1
1977	1
1991	5
1992	9
1993	15
1994	5
1995	21
1996	22
1997	6
1999	8
2002	10
2003	1
2004	19
2005	1
2006	3

Wettest Day of Each Month

Aug: 123.7 mm (4.9 in)

The wettest day on record for each calendar month at Siguiri. The most was 123.7 mm (4.9 in) on 14 August 1945.

Record daily precipitation for each month at Siguiri
Month	Record daily precipitation (mm)	Date
Jan	54.1 mm (2.1 in)	29 January 1994
Feb	53.1 mm (2.1 in)	25 February 1994
Mar	31.2 mm (1.2 in)	2 March 1953
Apr	57.1 mm (2.2 in)	24 April 1957
May	68.1 mm (2.7 in)	30 May 1945
Jun	99.2 mm (3.9 in)	14 June 1948
Jul	86.6 mm (3.4 in)	17 July 1948
Aug	123.7 mm (4.9 in)	14 August 1945
Sep	91.4 mm (3.6 in)	23 September 1950
Oct	58.2 mm (2.3 in)	14 October 1950
Nov	50.0 mm (2.0 in)	15 November 1949
Dec	50.0 mm (2.0 in)	15 December 1993

Period of Record Coverage

1945 to 2005

33 years of record at Siguiri, 1945 to 2005. 20 years have data for under 90 percent of days and are left out of rankings: 1958, 1975, 1976, 1977, 1978, 1989, 1990, 1991 and others.

Days with data per year at Siguiri
Year	Days with data	Share of year	Complete
1945	364	100%	Yes
1946	364	100%	Yes
1947	364	100%	Yes
1948	366	100%	Yes
1949	364	100%	Yes
1950	365	100%	Yes
1951	364	100%	Yes
1952	366	100%	Yes
1953	363	99%	Yes
1954	363	99%	Yes
1955	364	100%	Yes
1956	365	100%	Yes
1957	363	99%	Yes
1958	234	64%	No
1975	10	3%	No
1976	1	0%	No
1977	7	2%	No
1978	2	1%	No
1989	5	1%	No
1990	9	2%	No
1991	8	2%	No
1992	46	13%	No
1993	62	17%	No
1994	37	10%	No
1995	87	24%	No
1996	96	26%	No
1997	32	9%	No
1998	12	3%	No
1999	39	11%	No
2002	14	4%	No
2003	2	1%	No
2004	48	13%	No
2005	4	1%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

13 complete years, 1945 to 1957

One stripe for each of 13 complete years at Siguiri, 1945 to 1957. Blue stripes are years cooler than the station's own mean of 26.9 C (80.4 F); red stripes are warmer. The coolest year was 1950, at 26.4 C (79.5 F), and the warmest was 1953, at 27.4 C (81.2 F). The strongest colour marks a difference of 0.5 C (0.9 F).

Annual mean temperature at Siguiri as warming stripes, 1945 to 1957
Year	Annual mean temperature	Difference from the station mean
1945	27.0 C	+0.12 C
1946	26.8 C	-0.07 C
1947	27.1 C	+0.19 C
1948	26.7 C	-0.21 C
1949	26.8 C	-0.07 C
1950	26.4 C	-0.47 C
1951	26.6 C	-0.29 C
1952	27.0 C	+0.11 C
1953	27.4 C	+0.48 C
1954	26.6 C	-0.28 C
1955	26.8 C	-0.03 C
1956	27.1 C	+0.27 C
1957	27.1 C	+0.22 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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 2006

Yearly extremes at Siguiri: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.5 C (108.5 F)	1995	40.0 C (104.0 F)	33
Coldest night (TNn)	6.8 C (44.2 F)	1948	12.7 C (54.9 F)	24
Wettest day (Rx1day)	123.7 mm (4.9 in)	1945	50.0 mm (2.0 in)	31
Wettest five days (Rx5day)	225.3 mm (8.9 in)	1956	143.3 mm (5.6 in)	16
Longest dry spell (CDD)	114 days	1950	5 days	30

Hottest day (TXx)

The hottest day of the year at Siguiri, 1945 to 2006. The record is 42.5 C (108.5 F) in 1995, marked on the chart; the median year is 40.0 C (104.0 F).

Hottest day (TXx) at Siguiri by year
Year	Hottest day (TXx)
1945	40.6 C (105.1 F)
1946	40.2 C (104.4 F)
1947	40.4 C (104.7 F)
1948	40.5 C (104.9 F)
1949	40.0 C (104.0 F)
1950	39.6 C (103.3 F)
1951	40.2 C (104.4 F)
1952	40.2 C (104.4 F)
1953	40.0 C (104.0 F)
1954	39.8 C (103.6 F)
1955	39.5 C (103.1 F)
1956	39.8 C (103.6 F)
1957	39.6 C (103.3 F)
1958	40.6 C (105.1 F)
1975	35.0 C (95.0 F)
1976	31.0 C (87.8 F)
1977	39.0 C (102.2 F)
1978	35.0 C (95.0 F)
1983	n/a
1989	36.0 C (96.8 F)
1990	39.2 C (102.6 F)
1991	40.5 C (104.9 F)
1992	41.5 C (106.7 F)
1993	40.2 C (104.4 F)
1994	39.5 C (103.1 F)
1995	42.5 C (108.5 F)
1996	41.5 C (106.7 F)
1997	40.5 C (104.9 F)
1998	35.5 C (95.9 F)
1999	41.6 C (106.9 F)
2002	41.5 C (106.7 F)
2003	31.5 C (88.7 F)
2004	39.5 C (103.1 F)
2005	36.0 C (96.8 F)
2006	n/a

Coldest night (TNn)

The coldest night of the year at Siguiri, 1945 to 2006. The record is 6.8 C (44.2 F) in 1948, marked on the chart; the median year is 12.7 C (54.9 F).

Coldest night (TNn) at Siguiri by year
Year	Coldest night (TNn)
1945	9.3 C (48.7 F)
1946	7.8 C (46.0 F)
1947	8.7 C (47.7 F)
1948	6.8 C (44.2 F)
1949	8.7 C (47.7 F)
1950	9.8 C (49.6 F)
1951	10.2 C (50.4 F)
1952	11.0 C (51.8 F)
1953	13.9 C (57.0 F)
1954	11.2 C (52.2 F)
1955	12.4 C (54.3 F)
1956	11.6 C (52.9 F)
1957	12.0 C (53.6 F)
1958	15.1 C (59.2 F)
1975	13.0 C (55.4 F)
1976	n/a
1977	21.0 C (69.8 F)
1978	n/a
1983	22.0 C (71.6 F)
1989	n/a
1990	24.0 C (75.2 F)
1991	n/a
1992	n/a
1993	23.0 C (73.4 F)
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	17.0 C (62.6 F)
2002	13.0 C (55.4 F)
2003	n/a
2004	18.0 C (64.4 F)
2005	14.0 C (57.2 F)
2006	16.0 C (60.8 F)

Wettest day (Rx1day)

The wettest day of the year at Siguiri, 1945 to 2006. The record is 123.7 mm (4.9 in) in 1945, marked on the chart; the median year is 50.0 mm (2.0 in).

Wettest day (Rx1day) at Siguiri by year
Year	Wettest day (Rx1day)
1945	123.7 mm (4.9 in)
1946	71.5 mm (2.8 in)
1947	93.0 mm (3.7 in)
1948	99.2 mm (3.9 in)
1949	88.9 mm (3.5 in)
1950	91.4 mm (3.6 in)
1951	70.3 mm (2.8 in)
1952	58.8 mm (2.3 in)
1953	99.0 mm (3.9 in)
1954	76.2 mm (3.0 in)
1955	80.9 mm (3.2 in)
1956	75.2 mm (3.0 in)
1957	61.2 mm (2.4 in)
1958	56.7 mm (2.2 in)
1975	n/a
1976	n/a
1977	0.0 mm (0.00 in)
1978	n/a
1983	0.0 mm (0.00 in)
1989	0.0 mm (0.00 in)
1990	0.0 mm (0.00 in)
1991	0.0 mm (0.00 in)
1992	15.0 mm (0.6 in)
1993	50.0 mm (2.0 in)
1994	54.1 mm (2.1 in)
1995	0.0 mm (0.00 in)
1996	0.0 mm (0.00 in)
1997	0.0 mm (0.00 in)
1998	0.0 mm (0.00 in)
1999	0.0 mm (0.00 in)
2002	24.9 mm (1.0 in)
2003	0.0 mm (0.00 in)
2004	9.9 mm (0.39 in)
2005	0.0 mm (0.00 in)
2006	n/a

Wettest five days (Rx5day)

The wettest five days of the year at Siguiri, 1945 to 2006. The record is 225.3 mm (8.9 in) in 1956, marked on the chart; the median year is 143.3 mm (5.6 in).

Wettest five days (Rx5day) at Siguiri by year
Year	Wettest five days (Rx5day)
1945	183.4 mm (7.2 in)
1946	91.9 mm (3.6 in)
1947	196.8 mm (7.7 in)
1948	164.9 mm (6.5 in)
1949	140.0 mm (5.5 in)
1950	158.3 mm (6.2 in)
1951	127.2 mm (5.0 in)
1952	129.7 mm (5.1 in)
1953	170.6 mm (6.7 in)
1954	140.0 mm (5.5 in)
1955	171.1 mm (6.7 in)
1956	225.3 mm (8.9 in)
1957	146.6 mm (5.8 in)
1958	112.3 mm (4.4 in)
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1983	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	0.0 mm (0.00 in)
1996	0.0 mm (0.00 in)
1997	n/a
1998	n/a
1999	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Siguiri, 1945 to 2006. The record is 114 days in 1950, marked on the chart; the median year is 5 days.

Longest dry spell (CDD) at Siguiri by year
Year	Longest dry spell (CDD)
1945	80 days
1946	91 days
1947	103 days
1948	68 days
1949	72 days
1950	114 days
1951	75 days
1952	77 days
1953	60 days
1954	47 days
1955	79 days
1956	39 days
1957	60 days
1958	31 days
1975	n/a
1976	n/a
1977	1 day
1978	n/a
1983	1 day
1989	1 day
1990	3 days
1991	2 days
1992	2 days
1993	4 days
1994	2 days
1995	5 days
1996	5 days
1997	3 days
1998	3 days
1999	1 day
2002	n/a
2003	1 day
2004	3 days
2005	4 days
2006	n/a

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.

Download the Data

Data for Siguiri standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Siguiri 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 2026-10-12 (12 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).