Saint-Louis climate — normals and trends

Q: What is the climate of Saint-Louis?

Saint-Louis has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 24.3 °C and it receives 165 mm of precipitation per year.

Q: What is the hottest day ever recorded in Saint-Louis?

The hottest day measured in Saint-Louis between 1940 and 2025 was 31 March 2008, reaching 36.7 °C.

Q: What is the coldest day in Saint-Louis?

The coldest day measured in Saint-Louis between 1940 and 2025 was 20 January 1994, at 13.6 °C.

Q: Does it snow in Saint-Louis?

Almost never: Saint-Louis sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Saint-Louis warmed?

Yes: Saint-Louis warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Saint-Louis?

The wettest day measured in Saint-Louis between 1940 and 2025 was 14 August 1960, with 115 mm of rain in 24 hours.

Q: What was the windiest day in Saint-Louis?

The windiest day measured in Saint-Louis between 1940 and 2025 was 1 May 1993, with winds reaching 50.1 km/h.

Q: What is the warmest month in Saint-Louis?

The warmest month in Saint-Louis is October (27.7 °C on average); the coldest is January (21.6 °C).

Q: How much does it rain in Saint-Louis?

Saint-Louis receives on average 165 mm of precipitation per year, spread over about 24 rainy days.

Q: Is it sunny in Saint-Louis?

Saint-Louis gets on average 11.1 hours of sunshine per day, roughly 4,052 hours per year over 1940-2025.

Saint-Louis (Senegal) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 24.3 °C and it receives 165 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is October (27.7 °C on average) and the coldest is January (21.6 °C). Rainfall peaks in August.

Saint-Louis averages 0 frost days, 38 hot days (≥ 30 °C) and 24 rainy days per year.

Saint-Louis has warmed by +0.8 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.

The hottest day of the period reached 36.7 °C (on 31 March 2008) and the coldest 13.6 °C (on 20 January 1994).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

Saint-LouisSaint-Louis

coords: 16.02°, -16.49°
period: 1940–2025 · 86 yrs

BWhHot desertWarmest monthOctoberColdest monthJanuaryWettest monthAugustDriest monthApril

Mean daily temperature

24.3°C

Average daily high

26.9°C

Average daily low

22.3°C

Annual rainfall

165mm

Sunshine / day

11.1h

Mean relative humidity

66%

Average peak wind

25.5km/h

Seasonal range

6.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

38 d/yr

Rainy days (≥ 1 mm)

24 d/yr

Annual snowfall

0.0 cm

Average feels-like high

28.4 °C

Average feels-like low

22.0 °C

Average peak gust

36.0 km/h

Tropical nights (≥ 20 °C)

255 d/yr

Solar radiation

22.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.8 °C

since 1940

+0.1 °C per decade · r² = 0.27 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

36.7 °C

31 March 2008

Coldest day

13.6 °C

20 January 1994

Wettest day

115 mm

14 August 1960

Windiest day

50.1 km/h

1 May 1993

Strongest gust

68.4 km/h

4 May 1983

Hottest feels-like

41.7 °C

28 September 2025

Coldest feels-like

7.2 °C

17 December 1962

Sunniest day

12.3 h

27 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	36.2 °C3 November 2025	16.4 °C4 February 2025	24.5 °C	201 mm	53
2024	34.8 °C21 October 2024	17.9 °C10 April 2024	25.2 °C	98 mm	67
2023	34.9 °C26 October 2023	16.9 °C29 January 2023	25.4 °C	145 mm	84
2022	34.8 °C16 May 2022	16.8 °C1 March 2022	25.0 °C	265 mm	72
2021	34.6 °C21 October 2021	16.4 °C7 February 2021	24.7 °C	89 mm	56
2020	35.6 °C19 October 2020	15.9 °C11 January 2020	25.2 °C	216 mm	76
2019	33.5 °C30 October 2019	16.2 °C21 January 2019	24.1 °C	116 mm	40
2018	34.3 °C21 September 2018	15.6 °C30 January 2018	23.6 °C	58 mm	25
2017	36.3 °C1 April 2017	16.7 °C24 January 2017	24.9 °C	51 mm	61
2016	34.1 °C19 October 2016	16.5 °C20 February 2016	24.8 °C	128 mm	54
2015	34.9 °C5 November 2015	16.0 °C22 February 2015	24.7 °C	159 mm	46
2014	34.3 °C18 April 2014	15.5 °C16 February 2014	24.4 °C	51 mm	45
2013	33.5 °C20 October 2013	16.5 °C7 January 2013	24.8 °C	252 mm	52
2012	34.5 °C2 October 2012	14.5 °C22 January 2012	24.6 °C	172 mm	57
2011	34.5 °C11 October 2011	16.7 °C31 December 2011	24.6 °C	91 mm	49
2010	33.8 °C19 June 2010	16.9 °C28 January 2010	25.3 °C	177 mm	56
2009	34.0 °C1 May 2009	14.7 °C18 January 2009	24.2 °C	144 mm	58
2008	36.7 °C31 March 2008	16.2 °C8 January 2008	24.9 °C	154 mm	52
2007	35.5 °C8 May 2007	16.3 °C7 January 2007	24.5 °C	111 mm	46
2006	34.9 °C12 November 2006	15.2 °C19 January 2006	24.6 °C	112 mm	65
2005	35.8 °C17 October 2005	16.0 °C9 February 2005	25.1 °C	135 mm	67
2004	33.7 °C27 October 2004	16.5 °C25 January 2004	24.3 °C	72 mm	42
2003	32.7 °C5 November 2003	16.0 °C22 February 2003	24.3 °C	225 mm	42
2002	34.4 °C22 October 2002	16.9 °C12 January 2002	24.5 °C	209 mm	41
2001	34.4 °C30 October 2001	16.9 °C5 April 2001	25.2 °C	183 mm	65
2000	34.4 °C8 March 2000	16.4 °C9 January 2000	24.4 °C	209 mm	40
1999	34.8 °C21 May 1999	15.3 °C15 January 1999	24.2 °C	157 mm	27
1998	34.9 °C2 November 1998	17.1 °C31 December 1998	25.2 °C	106 mm	59
1997	34.0 °C29 October 1997	16.3 °C23 January 1997	25.0 °C	134 mm	56
1996	34.2 °C1 November 1996	16.1 °C13 March 1996	24.6 °C	89 mm	48
1995	34.2 °C18 November 1995	15.6 °C17 January 1995	24.6 °C	188 mm	57
1994	34.4 °C13 November 1994	13.6 °C20 January 1994	24.0 °C	170 mm	19
1993	33.6 °C18 September 1993	16.5 °C4 February 1993	24.1 °C	157 mm	21
1992	33.9 °C21 October 1992	16.5 °C1 March 1992	24.2 °C	71 mm	29
1991	34.8 °C24 September 1991	16.1 °C19 February 1991	24.2 °C	110 mm	38
1990	35.2 °C11 March 1990	16.4 °C23 December 1990	24.6 °C	65 mm	62
1989	32.3 °C5 June 1989	14.4 °C8 January 1989	24.4 °C	174 mm	31
1988	33.0 °C31 October 1988	15.6 °C20 January 1988	24.3 °C	198 mm	25
1987	36.0 °C20 April 1987	16.3 °C31 December 1987	25.0 °C	100 mm	63
1986	32.9 °C6 October 1986	15.2 °C21 January 1986	23.9 °C	125 mm	25
1985	34.2 °C14 October 1985	16.0 °C17 January 1985	24.0 °C	206 mm	47
1984	33.4 °C24 October 1984	15.8 °C9 January 1984	24.3 °C	66 mm	34
1983	35.1 °C21 March 1983	16.6 °C10 February 1983	25.0 °C	40 mm	53
1982	33.9 °C30 September 1982	15.5 °C29 December 1982	24.0 °C	63 mm	35
1981	33.1 °C9 November 1981	15.3 °C14 February 1981	24.6 °C	160 mm	39
1980	32.6 °C31 March 1980	15.2 °C21 December 1980	24.0 °C	133 mm	32
1979	35.4 °C23 April 1979	17.4 °C22 January 1979	24.8 °C	101 mm	30
1978	34.6 °C16 October 1978	16.6 °C23 January 1978	24.5 °C	130 mm	38
1977	33.6 °C7 November 1977	16.2 °C25 February 1977	24.2 °C	89 mm	31
1976	32.5 °C21 September 1976	15.2 °C6 March 1976	23.4 °C	153 mm	28
1975	34.2 °C24 October 1975	15.8 °C23 January 1975	23.8 °C	226 mm	24
1974	33.3 °C29 October 1974	15.3 °C22 January 1974	23.4 °C	154 mm	23
1973	34.7 °C5 October 1973	15.8 °C14 January 1973	24.3 °C	87 mm	42
1972	32.8 °C11 September 1972	15.7 °C24 February 1972	23.7 °C	99 mm	35
1971	34.6 °C28 October 1971	16.4 °C13 February 1971	23.8 °C	90 mm	38
1970	35.6 °C19 October 1970	16.4 °C1 February 1970	24.5 °C	113 mm	37
1969	33.7 °C14 March 1969	17.5 °C19 January 1969	24.8 °C	253 mm	26
1968	33.8 °C11 October 1968	14.5 °C3 January 1968	23.5 °C	157 mm	26
1967	32.3 °C7 June 1967	14.8 °C25 December 1967	23.7 °C	374 mm	14
1966	34.5 °C25 October 1966	16.0 °C29 December 1966	24.5 °C	200 mm	37
1965	34.2 °C27 February 1965	14.0 °C11 January 1965	23.7 °C	154 mm	17
1964	33.6 °C29 April 1964	15.6 °C27 January 1964	24.2 °C	184 mm	21
1963	33.8 °C19 September 1963	14.8 °C25 December 1963	24.4 °C	200 mm	37
1962	31.9 °C1 November 1962	14.3 °C17 December 1962	24.0 °C	230 mm	15
1961	33.9 °C1 March 1961	15.3 °C15 January 1961	24.1 °C	154 mm	13
1960	32.1 °C13 June 1960	15.8 °C16 January 1960	23.9 °C	263 mm	23
1959	34.8 °C13 October 1959	15.2 °C9 January 1959	23.9 °C	114 mm	28
1958	33.0 °C2 May 1958	16.2 °C29 December 1958	24.5 °C	354 mm	21
1957	32.7 °C19 September 1957	14.4 °C23 January 1957	23.7 °C	232 mm	17
1956	31.8 °C17 November 1956	14.2 °C3 January 1956	23.7 °C	244 mm	18
1955	34.3 °C20 February 1955	16.2 °C27 January 1955	24.5 °C	274 mm	23
1954	32.9 °C23 May 1954	14.5 °C7 February 1954	24.0 °C	249 mm	24
1953	32.9 °C8 July 1953	16.3 °C14 March 1953	24.0 °C	195 mm	30
1952	33.0 °C2 June 1952	14.4 °C17 January 1952	24.0 °C	268 mm	27
1951	32.9 °C14 September 1951	15.9 °C6 February 1951	23.8 °C	290 mm	15
1950	32.8 °C23 May 1950	15.8 °C30 January 1950	24.3 °C	273 mm	24
1949	34.1 °C15 October 1949	14.8 °C1 January 1949	24.2 °C	211 mm	35
1948	33.3 °C12 November 1948	14.9 °C16 January 1948	24.3 °C	184 mm	36
1947	32.9 °C12 November 1947	15.3 °C2 January 1947	24.1 °C	339 mm	24
1946	32.3 °C2 October 1946	15.1 °C30 December 1946	24.0 °C	46 mm	32
1945	34.1 °C12 November 1945	16.8 °C6 January 1945	25.0 °C	165 mm	47
1944	33.6 °C17 October 1944	15.2 °C14 January 1944	24.3 °C	259 mm	23
1943	33.3 °C23 October 1943	14.2 °C3 January 1943	23.7 °C	274 mm	15
1942	33.4 °C15 October 1942	15.3 °C31 December 1942	24.1 °C	248 mm	25
1941	33.4 °C9 November 1941	16.6 °C15 January 1941	23.9 °C	80 mm	15
1940	33.8 °C6 June 1940	15.2 °C11 February 1940	24.4 °C	165 mm	40

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

26.9 °C

0.0 °C

Hot days (≥ 30 °C)

53 d/yr

+15

Frost days (< 0 °C)

0 d/yr

Annual rainfall

202 mm

+37 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	25.6 °C	+0.8 °C	0 mm	-2 mm
Feb	24.6 °C	-0.2 °C	0 mm	-2 mm
Mar	22.9 °C	-2.2 °C	0 mm	-0 mm
Apr	24.9 °C	+0.1 °C	0 mm	+0 mm
May	26.1 °C	+0.7 °C	1 mm	+0 mm
Jun	26.9 °C	+0.2 °C	0 mm	-1 mm
Jul	27.7 °C	-0.1 °C	1 mm	-14 mm
Aug	28.9 °C	+0.3 °C	133 mm	+64 mm
Sep	29.9 °C	+0.6 °C	45 mm	-13 mm
Oct	30.8 °C	+0.9 °C	11 mm	-6 mm
Nov	29.8 °C	+1.0 °C	2 mm	+1 mm
Dec	25.0 °C	-1.4 °C	9 mm	+7 mm

The year's extremes

Hottest day

36.2 °C

3 Nov 2025

Coldest day

16.4 °C

4 Feb 2025

Wettest day

46.4 mm

21 Aug 2025

Windiest day

43.8 km/h

12 Aug 2025

Strongest gust

60.5 km/h

12 Aug 2025

Hottest feels-like

41.7 °C

28 Sep 2025

Coldest feels-like

11.2 °C

3 Feb 2025

Sunniest day

12.2 h

5 Jul 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Saint-Louis?

Saint-Louis has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 24.3 °C and it receives 165 mm of precipitation per year.

What is the hottest day ever recorded in Saint-Louis?

The hottest day measured in Saint-Louis between 1940 and 2025 was 31 March 2008, reaching 36.7 °C.

What is the coldest day in Saint-Louis?

The coldest day measured in Saint-Louis between 1940 and 2025 was 20 January 1994, at 13.6 °C.

Does it snow in Saint-Louis?

Almost never: Saint-Louis sees virtually no snow, with about 0 frost days per year.

Has the climate of Saint-Louis warmed?

Yes: Saint-Louis warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Saint-Louis?

The wettest day measured in Saint-Louis between 1940 and 2025 was 14 August 1960, with 115 mm of rain in 24 hours.

What was the windiest day in Saint-Louis?

The windiest day measured in Saint-Louis between 1940 and 2025 was 1 May 1993, with winds reaching 50.1 km/h.

What is the warmest month in Saint-Louis?

The warmest month in Saint-Louis is October (27.7 °C on average); the coldest is January (21.6 °C).

How much does it rain in Saint-Louis?

Saint-Louis receives on average 165 mm of precipitation per year, spread over about 24 rainy days.

Is it sunny in Saint-Louis?

Saint-Louis gets on average 11.1 hours of sunshine per day, roughly 4,052 hours per year over 1940-2025.

Are there tropical nights in Saint-Louis?

Yes: Saint-Louis has on average 255 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Saint-Louis?

In Saint-Louis, between 1940 and 2025, the highest apparent temperature reached 41.7 °C on 28 September 2025, and the lowest was 7.2 °C on 17 December 1962.

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