Fortaleza Weather Records (BR028724960)

Record envelope, standing records and threshold days for Fortaleza (BR028724960), Brazil, with 79 years of record.

Key Facts for Fortaleza

Fortaleza (BR028724960) is a weather station in Brazil at -3.77 latitude and -38.60 longitude, 26 m (85 ft) above sea level.
The station reports from 1919 to 1997, 79 years of record.
1,178 records set at Fortaleza still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Fortaleza set a daily record precipitation of 10.9 mm (0.4 in) on 1 September 1988.

About the Station

Location: Brazil, -3.77 latitude, -38.60 longitude.
Elevation: 26 m (85 ft).
Period of record: 1919 to 1997, 79 years.
Eligible elements: 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 Fortaleza. 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 Fortaleza, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	39.7 C (103.5 F)	14.0 C (57.2 F)	n/a	n/a
Feb	33.0 C (91.4 F)	22.0 C (71.6 F)	n/a	n/a
Mar	32.0 C (89.6 F)	22.0 C (71.6 F)	n/a	n/a
Apr	31.0 C (87.8 F)	23.0 C (73.4 F)	n/a	n/a
May	33.0 C (91.4 F)	23.0 C (73.4 F)	n/a	n/a
Jun	39.0 C (102.2 F)	21.0 C (69.8 F)	n/a	n/a
Jul	33.0 C (91.4 F)	20.0 C (68.0 F)	n/a	n/a
Aug	33.0 C (91.4 F)	21.0 C (69.8 F)	n/a	n/a
Sep	33.3 C (91.9 F)	14.4 C (57.9 F)	n/a	n/a
Oct	38.0 C (100.4 F)	14.0 C (57.2 F)	n/a	n/a
Nov	33.0 C (91.4 F)	23.0 C (73.4 F)	n/a	n/a
Dec	32.2 C (90.0 F)	23.0 C (73.4 F)	n/a	n/a

Which Years Hold Standing Records

1,178 standing records

1,178 records at Fortaleza still stand. 1979 holds the most, with 804.

All-Time Record Progression

1 new records

1 all-time records were set at Fortaleza between 5 May 1949 and 5 May 1949. Each dot is a new record.

Wettest Day of Each Month

May: 227.2 mm (8.9 in)

The wettest day on record for each calendar month at Fortaleza. The most was 227.2 mm (8.9 in) on 5 May 1949.

Record daily precipitation for each month at Fortaleza
Month	Record daily precipitation (mm)	Date
Jan	102.5 mm (4.0 in)	21 January 1971
Feb	136.2 mm (5.4 in)	11 February 1972
Mar	125.5 mm (4.9 in)	13 March 1920
Apr	172.1 mm (6.8 in)	30 April 1963
May	227.2 mm (8.9 in)	5 May 1949
Jun	78.4 mm (3.1 in)	17 June 1972
Jul	138.5 mm (5.5 in)	21 July 1971
Aug	95.2 mm (3.7 in)	16 August 1972
Sep	22.8 mm (0.9 in)	19 September 1962
Oct	23.0 mm (0.9 in)	4 October 1975
Nov	87.0 mm (3.4 in)	26 November 1947
Dec	103.8 mm (4.1 in)	19 December 1934

Period of Record Coverage

1974 to 1997

18 years of record at Fortaleza, 1974 to 1997. 18 years have data for under 90 percent of days and are left out of rankings: 1974, 1977, 1978, 1979, 1980, 1981, 1982, 1983 and others.

Days with data per year at Fortaleza
Year	Days with data	Share of year	Complete
1974	10	3%	No
1977	3	1%	No
1978	33	9%	No
1979	241	66%	No
1980	11	3%	No
1981	7	2%	No
1982	2	1%	No
1983	10	3%	No
1984	12	3%	No
1985	4	1%	No
1986	43	12%	No
1987	3	1%	No
1988	3	1%	No
1990	1	0%	No
1991	3	1%	No
1993	1	0%	No
1996	1	0%	No
1997	1	0%	No

Latest Records

Latest records at Fortaleza
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 September 1988	Fortaleza, BR	daily rain	10.9 mm (0.4 in)	0.9 mm (0.04 in)	31 years	18 of 100 (Routine)
21 August 1986	Fortaleza, BR	daily rain	4.1 mm (0.16 in)	1.7 mm (0.07 in)	21 years	13 of 100 (Routine)
6 September 1979	Fortaleza, BR	daily rain	14.0 mm (0.6 in)	5.6 mm (0.22 in)	46 years	20 of 100 (Routine)
28 August 1979	Fortaleza, BR	daily rain	21.1 mm (0.8 in)	14.1 mm (0.6 in)	60 years	20 of 100 (Routine)
3 December 1978	Fortaleza, BR	daily rain	13.0 mm (0.5 in)	7.3 mm (0.29 in)	28 years	20 of 100 (Routine)
19 November 1976	Fortaleza, BR	daily rain	19.8 mm (0.8 in)	3.3 mm (0.13 in)	37 years	19 of 100 (Routine)
23 August 1976	Fortaleza, BR	daily rain	21.6 mm (0.9 in)	20.2 mm (0.8 in)	49 years	20 of 100 (Routine)
6 July 1976	Fortaleza, BR	daily rain	52.4 mm (2.1 in)	20.1 mm (0.8 in)	8 years	21 of 100 (Routine)
28 May 1976	Fortaleza, BR	daily rain	67.0 mm (2.6 in)	12.4 mm (0.5 in)	31 years	20 of 100 (Routine)
20 April 1976	Fortaleza, BR	daily rain	78.0 mm (3.1 in)	8.1 mm (0.32 in)	35 years	19 of 100 (Routine)
15 April 1976	Fortaleza, BR	daily rain	85.5 mm (3.4 in)	20.0 mm (0.8 in)	1 year	14 of 100 (Routine)
13 February 1976	Fortaleza, BR	daily rain	68.9 mm (2.7 in)	25.4 mm (1.0 in)	32 years	28 of 100 (Routine)
11 December 1975	Fortaleza, BR	daily rain	12.5 mm (0.5 in)	9.3 mm (0.37 in)	40 years	20 of 100 (Routine)
9 December 1975	Fortaleza, BR	daily rain	3.2 mm (0.13 in)	0.9 mm (0.04 in)	12 years	8 of 100 (Routine)
5 December 1975	Fortaleza, BR	daily rain	7.3 mm (0.29 in)	2.0 mm (0.08 in)	36 years	16 of 100 (Routine)
29 November 1975	Fortaleza, BR	daily rain	5.6 mm (0.22 in)	0.6 mm (0.02 in)	20 years	11 of 100 (Routine)
4 October 1975	Fortaleza, BR	monthly rain	23.0 mm (0.9 in)	1.0 mm (0.04 in)	19 years	20 of 100 (Routine)
7 September 1975	Fortaleza, BR	daily rain	12.4 mm (0.5 in)	8.2 mm (0.32 in)	36 years	20 of 100 (Routine)
15 April 1975	Fortaleza, BR	daily rain	65.5 mm (2.6 in)	5.5 mm (0.22 in)	22 years	13 of 100 (Routine)
15 March 1975	Fortaleza, BR	daily rain	60.5 mm (2.4 in)	17.7 mm (0.7 in)	8 years	16 of 100 (Routine)

Extremes by Year

1919 to 1997

Yearly extremes at Fortaleza: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.7 C (103.5 F)	1985	32.1 C (89.8 F)	18
Coldest night (TNn)	14.0 C (57.2 F)	1979	22.7 C (72.9 F)	18
Wettest day (Rx1day)	227.2 mm (8.9 in)	1949	71.1 mm (2.8 in)	74
Wettest five days (Rx5day)	326.9 mm (12.9 in)	1949	166.8 mm (6.6 in)	61
Longest dry spell (CDD)	123 days	1926	45 days	69

Hottest day (TXx)

The hottest day of the year at Fortaleza, 1919 to 1997. The record is 39.7 C (103.5 F) in 1985, marked on the chart; the median year is 32.1 C (89.8 F).

Hottest day (TXx) at Fortaleza by year
Year	Hottest day (TXx)
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	33.0 C (91.4 F)
1975	n/a
1976	n/a
1977	32.0 C (89.6 F)
1978	31.0 C (87.8 F)
1979	39.0 C (102.2 F)
1980	33.0 C (91.4 F)
1981	32.0 C (89.6 F)
1982	31.4 C (88.5 F)
1983	32.7 C (90.9 F)
1984	31.0 C (87.8 F)
1985	39.7 C (103.5 F)
1986	33.3 C (91.9 F)
1987	32.2 C (90.0 F)
1988	32.3 C (90.1 F)
1989	n/a
1990	29.5 C (85.1 F)
1991	31.0 C (87.8 F)
1993	29.8 C (85.6 F)
1996	32.4 C (90.3 F)
1997	30.7 C (87.3 F)

Coldest night (TNn)

The coldest night of the year at Fortaleza, 1919 to 1997. The record is 14.0 C (57.2 F) in 1979, marked on the chart; the median year is 22.7 C (72.9 F).

Coldest night (TNn) at Fortaleza by year
Year	Coldest night (TNn)
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	20.0 C (68.0 F)
1975	n/a
1976	n/a
1977	25.0 C (77.0 F)
1978	22.0 C (71.6 F)
1979	14.0 C (57.2 F)
1980	23.0 C (73.4 F)
1981	22.0 C (71.6 F)
1982	24.2 C (75.6 F)
1983	23.0 C (73.4 F)
1984	20.9 C (69.6 F)
1985	22.5 C (72.5 F)
1986	21.1 C (70.0 F)
1987	22.2 C (72.0 F)
1988	24.3 C (75.7 F)
1989	24.2 C (75.6 F)
1990	22.9 C (73.2 F)
1991	14.4 C (57.9 F)
1993	23.6 C (74.5 F)
1996	24.2 C (75.6 F)
1997	n/a

Wettest day (Rx1day)

The wettest day of the year at Fortaleza, 1919 to 1997. The record is 227.2 mm (8.9 in) in 1949, marked on the chart; the median year is 71.1 mm (2.8 in).

Wettest day (Rx1day) at Fortaleza by year
Year	Wettest day (Rx1day)
1919	67.0 mm (2.6 in)
1920	125.5 mm (4.9 in)
1921	97.5 mm (3.8 in)
1922	74.5 mm (2.9 in)
1923	91.2 mm (3.6 in)
1924	70.0 mm (2.8 in)
1925	67.0 mm (2.6 in)
1926	67.7 mm (2.7 in)
1927	65.3 mm (2.6 in)
1928	97.8 mm (3.9 in)
1929	81.1 mm (3.2 in)
1930	64.4 mm (2.5 in)
1931	85.1 mm (3.4 in)
1932	56.0 mm (2.2 in)
1933	65.9 mm (2.6 in)
1934	103.8 mm (4.1 in)
1935	102.7 mm (4.0 in)
1936	69.7 mm (2.7 in)
1937	83.8 mm (3.3 in)
1938	148.4 mm (5.8 in)
1939	91.4 mm (3.6 in)
1940	61.2 mm (2.4 in)
1941	94.5 mm (3.7 in)
1942	51.0 mm (2.0 in)
1943	131.2 mm (5.2 in)
1944	84.0 mm (3.3 in)
1945	69.0 mm (2.7 in)
1946	94.5 mm (3.7 in)
1947	98.2 mm (3.9 in)
1948	110.8 mm (4.4 in)
1949	227.2 mm (8.9 in)
1950	78.5 mm (3.1 in)
1951	67.3 mm (2.6 in)
1952	118.2 mm (4.7 in)
1953	59.3 mm (2.3 in)
1954	68.5 mm (2.7 in)
1955	66.0 mm (2.6 in)
1956	69.0 mm (2.7 in)
1957	120.7 mm (4.8 in)
1958	55.6 mm (2.2 in)
1959	106.2 mm (4.2 in)
1960	115.4 mm (4.5 in)
1961	87.8 mm (3.5 in)
1962	81.2 mm (3.2 in)
1963	172.1 mm (6.8 in)
1964	112.4 mm (4.4 in)
1965	74.8 mm (2.9 in)
1966	63.4 mm (2.5 in)
1967	113.4 mm (4.5 in)
1968	65.4 mm (2.6 in)
1969	72.1 mm (2.8 in)
1970	134.2 mm (5.3 in)
1971	138.5 mm (5.5 in)
1972	136.2 mm (5.4 in)
1973	76.8 mm (3.0 in)
1974	128.5 mm (5.1 in)
1975	65.5 mm (2.6 in)
1976	85.5 mm (3.4 in)
1977	0.5 mm (0.02 in)
1978	13.0 mm (0.5 in)
1979	53.1 mm (2.1 in)
1980	23.1 mm (0.9 in)
1981	2.0 mm (0.08 in)
1982	5.1 mm (0.20 in)
1983	1.0 mm (0.04 in)
1984	30.0 mm (1.2 in)
1985	50.0 mm (2.0 in)
1986	13.0 mm (0.5 in)
1987	6.1 mm (0.24 in)
1988	10.9 mm (0.4 in)
1989	n/a
1990	3.0 mm (0.12 in)
1991	7.9 mm (0.31 in)
1993	0.0 mm (0.00 in)
1996	0.0 mm (0.00 in)
1997	n/a

Wettest five days (Rx5day)

The wettest five days of the year at Fortaleza, 1919 to 1997. The record is 326.9 mm (12.9 in) in 1949, marked on the chart; the median year is 166.8 mm (6.6 in).

Wettest five days (Rx5day) at Fortaleza by year
Year	Wettest five days (Rx5day)
1919	85.1 mm (3.4 in)
1920	186.0 mm (7.3 in)
1921	213.9 mm (8.4 in)
1922	269.4 mm (10.6 in)
1923	199.0 mm (7.8 in)
1924	158.5 mm (6.2 in)
1925	155.0 mm (6.1 in)
1926	159.2 mm (6.3 in)
1927	226.5 mm (8.9 in)
1928	124.6 mm (4.9 in)
1929	161.6 mm (6.4 in)
1930	107.5 mm (4.2 in)
1931	116.3 mm (4.6 in)
1932	176.4 mm (6.9 in)
1933	172.7 mm (6.8 in)
1934	176.0 mm (6.9 in)
1935	206.8 mm (8.1 in)
1936	134.5 mm (5.3 in)
1937	148.8 mm (5.9 in)
1938	182.3 mm (7.2 in)
1939	224.9 mm (8.9 in)
1940	120.0 mm (4.7 in)
1941	175.6 mm (6.9 in)
1942	88.5 mm (3.5 in)
1943	143.2 mm (5.6 in)
1944	186.9 mm (7.4 in)
1945	140.7 mm (5.5 in)
1946	187.7 mm (7.4 in)
1947	203.9 mm (8.0 in)
1948	177.2 mm (7.0 in)
1949	326.9 mm (12.9 in)
1950	128.2 mm (5.0 in)
1951	137.8 mm (5.4 in)
1952	245.6 mm (9.7 in)
1953	157.3 mm (6.2 in)
1954	107.6 mm (4.2 in)
1955	140.0 mm (5.5 in)
1956	111.4 mm (4.4 in)
1957	222.0 mm (8.7 in)
1958	62.9 mm (2.5 in)
1959	245.5 mm (9.7 in)
1960	290.3 mm (11.4 in)
1961	166.8 mm (6.6 in)
1962	190.8 mm (7.5 in)
1963	258.0 mm (10.2 in)
1964	230.3 mm (9.1 in)
1965	173.1 mm (6.8 in)
1966	144.6 mm (5.7 in)
1967	172.2 mm (6.8 in)
1968	114.5 mm (4.5 in)
1969	168.5 mm (6.6 in)
1970	199.1 mm (7.8 in)
1971	209.6 mm (8.3 in)
1972	159.2 mm (6.3 in)
1973	143.3 mm (5.6 in)
1974	274.5 mm (10.8 in)
1975	151.6 mm (6.0 in)
1976	164.8 mm (6.5 in)
1977	n/a
1978	0.5 mm (0.02 in)
1979	86.1 mm (3.4 in)
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	4.5 mm (0.18 in)
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1993	n/a
1996	n/a
1997	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Fortaleza, 1919 to 1997. The record is 123 days in 1926, marked on the chart; the median year is 45 days.

Longest dry spell (CDD) at Fortaleza by year
Year	Longest dry spell (CDD)
1919	41 days
1920	45 days
1921	54 days
1922	89 days
1923	100 days
1924	33 days
1925	57 days
1926	123 days
1927	67 days
1928	80 days
1929	46 days
1930	34 days
1931	45 days
1932	30 days
1933	47 days
1934	67 days
1935	30 days
1936	27 days
1937	27 days
1938	33 days
1939	26 days
1940	56 days
1941	38 days
1942	106 days
1943	38 days
1944	60 days
1945	32 days
1946	73 days
1947	84 days
1948	33 days
1949	88 days
1950	32 days
1951	68 days
1952	45 days
1953	65 days
1954	58 days
1955	31 days
1956	37 days
1957	51 days
1958	39 days
1959	40 days
1960	52 days
1961	15 days
1962	40 days
1963	69 days
1964	62 days
1965	55 days
1966	95 days
1967	87 days
1968	42 days
1969	59 days
1970	60 days
1971	27 days
1972	51 days
1973	50 days
1974	47 days
1975	53 days
1976	32 days
1977	1 day
1978	14 days
1979	18 days
1980	1 day
1981	1 day
1982	n/a
1983	1 day
1984	1 day
1985	n/a
1986	3 days
1987	n/a
1988	1 day
1989	n/a
1990	n/a
1991	n/a
1993	1 day
1996	1 day
1997	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.

Rainfall Return Levels

54 years, 1920 to 1976

A day with at least 85.3 mm (3.4 in) of rain is expected about once in 2 years. A day with at least 217.9 mm (8.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Fortaleza: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	85.3 mm (3.4 in)
5 years	113.5 mm (4.5 in)
10 years	134.7 mm (5.3 in)
25 years	165.0 mm (6.5 in)
50 years	190.3 mm (7.5 in)
100 years	217.9 mm (8.6 in)	Longer than the 54 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, 54 years of values from 1920 to 1976.

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: 227.2 mm (8.9 in) in 1949; 172.1 mm (6.8 in) in 1963; 148.4 mm (5.8 in) in 1938.

Download the Data

Data for Fortaleza standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Fortaleza 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).