Sidi Slimane climate — normals and trends

Q: What is the climate of Sidi Slimane?

Sidi Slimane has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 18.4 °C and it receives 458 mm of precipitation per year.

Q: What is the hottest day ever recorded in Sidi Slimane?

The hottest day measured in Sidi Slimane between 1940 and 2025 was 26 August 2010, reaching 46.3 °C.

Q: What is the coldest day in Sidi Slimane?

The coldest day measured in Sidi Slimane between 1940 and 2025 was 28 January 2005, at -4.7 °C.

Q: Does it snow in Sidi Slimane?

Almost never: Sidi Slimane sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Sidi Slimane warmed?

Yes: Sidi Slimane warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Sidi Slimane?

The wettest day measured in Sidi Slimane between 1940 and 2025 was 30 November 2010, with 73 mm of rain in 24 hours.

Q: What was the windiest day in Sidi Slimane?

The windiest day measured in Sidi Slimane between 1940 and 2025 was 16 February 1956, with winds reaching 37.3 km/h.

Q: What is the warmest month in Sidi Slimane?

The warmest month in Sidi Slimane is August (25.3 °C on average); the coldest is January (11.5 °C).

Q: How much does it rain in Sidi Slimane?

Sidi Slimane receives on average 458 mm of precipitation per year, spread over about 66 rainy days.

Q: Is it sunny in Sidi Slimane?

Sidi Slimane gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

Sidi Slimane (Morocco) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 18.4 °C and it receives 458 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 August (25.3 °C on average) and the coldest is January (11.5 °C). Rainfall peaks in December.

Sidi Slimane averages 0 frost days, 89 hot days (≥ 30 °C) and 66 rainy days per year.

Sidi Slimane has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.

The hottest day of the period reached 46.3 °C (on 26 August 2010) and the coldest -4.7 °C (on 28 January 2005).

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

Sidi SlimaneRabat-Salé-Kénitra

coords: 34.26°, -5.93°
period: 1940–2025 · 86 yrs

CsaHot-summer MediterraneanWarmest monthAugustColdest monthJanuaryWettest monthDecemberDriest monthJuly

Mean daily temperature

18.4°C

Average daily high

24.7°C

Average daily low

13.0°C

Annual rainfall

458mm

Sunshine / day

10.7h

Mean relative humidity

72%

Average peak wind

12.5km/h

Seasonal range

13.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

89 d/yr

Rainy days (≥ 1 mm)

66 d/yr

Annual snowfall

0.0 cm

Average feels-like high

25.1 °C

Average feels-like low

12.6 °C

Average peak gust

30.0 km/h

Tropical nights (≥ 20 °C)

31 d/yr

Solar radiation

18.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.44 · 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

46.3 °C

26 August 2010

Coldest day

-4.7 °C

28 January 2005

Wettest day

73 mm

30 November 2010

Windiest day

37.3 km/h

16 February 1956

Strongest gust

97.2 km/h

16 January 1972

Hottest feels-like

50.7 °C

10 July 2021

Coldest feels-like

-8.4 °C

28 January 2005

Snowiest day

0.1 cm

13 December 1949

Sunniest day

13.8 h

23 June 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	44.5 °C12 August 2025	2.8 °C16 January 2025	19.6 °C	503 mm	118	0
2024	42.7 °C24 July 2024	1.9 °C10 December 2024	19.6 °C	383 mm	104	0
2023	44.6 °C26 June 2023	0.2 °C29 January 2023	19.8 °C	223 mm	131	0
2022	43.3 °C13 July 2022	1.9 °C20 January 2022	19.9 °C	340 mm	115	0
2021	46.1 °C10 July 2021	0.4 °C13 January 2021	18.6 °C	413 mm	90	0
2020	42.8 °C7 July 2020	1.4 °C31 December 2020	19.3 °C	298 mm	105	0
2019	40.1 °C23 August 2019	0.0 °C4 February 2019	18.6 °C	306 mm	95	0
2018	43.0 °C2 August 2018	1.2 °C3 February 2018	18.3 °C	636 mm	88	0
2017	44.1 °C24 June 2017	-0.1 °C16 January 2017	20.2 °C	246 mm	143	1
2016	44.0 °C25 July 2016	2.6 °C16 February 2016	19.9 °C	370 mm	131	0
2015	43.0 °C13 May 2015	1.8 °C8 February 2015	19.6 °C	297 mm	117	0
2014	41.5 °C14 May 2014	1.6 °C8 December 2014	19.0 °C	447 mm	116	0
2013	43.2 °C11 August 2013	-0.3 °C8 February 2013	18.6 °C	453 mm	97	1
2012	43.9 °C17 July 2012	-2.5 °C5 February 2012	18.5 °C	433 mm	112	5
2011	44.3 °C25 June 2011	-0.2 °C3 March 2011	19.2 °C	496 mm	129	1
2010	46.3 °C26 August 2010	3.1 °C14 March 2010	19.5 °C	791 mm	102	0
2009	45.3 °C21 July 2009	0.3 °C11 January 2009	19.4 °C	556 mm	127	0
2008	41.0 °C30 June 2008	2.4 °C24 March 2008	18.5 °C	474 mm	99	0
2007	40.5 °C30 July 2007	1.2 °C28 January 2007	18.7 °C	345 mm	94	0
2006	44.0 °C11 July 2006	1.7 °C4 January 2006	19.3 °C	425 mm	105	0
2005	45.3 °C20 July 2005	-4.7 °C28 January 2005	19.0 °C	236 mm	122	3
2004	45.5 °C29 June 2004	0.2 °C20 January 2004	19.1 °C	290 mm	120	0
2003	44.0 °C31 July 2003	-0.1 °C2 February 2003	19.3 °C	486 mm	104	1
2002	39.0 °C28 July 2002	2.6 °C7 December 2002	18.9 °C	467 mm	97	0
2001	41.7 °C28 May 2001	1.0 °C16 November 2001	19.3 °C	278 mm	101	0
2000	45.3 °C31 July 2000	1.6 °C11 January 2000	18.7 °C	435 mm	97	0
1999	39.4 °C7 July 1999	1.1 °C18 December 1999	18.3 °C	354 mm	87	0
1998	42.3 °C18 June 1998	1.3 °C7 December 1998	18.7 °C	291 mm	74	0
1997	37.8 °C6 July 1997	2.9 °C28 December 1997	19.2 °C	536 mm	70	0
1996	41.2 °C28 June 1996	-0.7 °C23 February 1996	18.6 °C	876 mm	87	1
1995	46.1 °C23 July 1995	-0.8 °C9 January 1995	19.5 °C	315 mm	92	1
1994	40.7 °C10 July 1994	-0.8 °C26 December 1994	18.2 °C	301 mm	81	1
1993	39.5 °C22 July 1993	2.2 °C19 January 1993	17.4 °C	381 mm	50	0
1992	39.8 °C16 September 1992	-0.5 °C25 January 1992	17.9 °C	277 mm	61	1
1991	41.8 °C13 July 1991	-0.1 °C14 January 1991	17.7 °C	438 mm	81	1
1990	42.2 °C3 August 1990	2.6 °C12 January 1990	18.7 °C	442 mm	77	0
1989	43.2 °C18 July 1989	0.9 °C4 January 1989	19.2 °C	538 mm	110	0
1988	43.7 °C1 August 1988	2.7 °C31 December 1988	18.4 °C	358 mm	82	0
1987	41.7 °C27 July 1987	0.1 °C17 January 1987	18.9 °C	506 mm	85	0
1986	39.8 °C29 July 1986	-1.3 °C25 December 1986	18.0 °C	424 mm	80	1
1985	41.9 °C23 July 1985	-1.7 °C1 January 1985	18.6 °C	372 mm	107	2
1984	41.7 °C28 July 1984	0.8 °C30 December 1984	17.8 °C	425 mm	78	0
1983	39.9 °C15 June 1983	1.3 °C3 January 1983	18.5 °C	407 mm	76	0
1982	44.1 °C1 July 1982	2.4 °C16 December 1982	18.0 °C	439 mm	68	0
1981	41.7 °C12 June 1981	-0.6 °C15 January 1981	18.8 °C	226 mm	90	1
1980	45.3 °C22 July 1980	-1.4 °C3 December 1980	18.3 °C	447 mm	93	2
1979	42.4 °C28 July 1979	2.1 °C4 March 1979	17.8 °C	494 mm	64	0
1978	42.6 °C23 July 1978	2.7 °C15 January 1978	18.2 °C	455 mm	74	0
1977	37.6 °C12 September 1977	1.9 °C8 January 1977	17.6 °C	517 mm	38	0
1976	40.5 °C7 August 1976	-2.0 °C28 January 1976	17.4 °C	706 mm	62	2
1975	40.1 °C29 July 1975	2.1 °C20 January 1975	17.3 °C	476 mm	63	0
1974	41.6 °C16 August 1974	1.4 °C5 March 1974	17.3 °C	436 mm	73	0
1973	40.6 °C14 August 1973	1.9 °C3 February 1973	17.8 °C	444 mm	75	0
1972	38.2 °C12 July 1972	0.3 °C25 January 1972	16.7 °C	645 mm	36	0
1971	40.3 °C29 July 1971	0.2 °C2 January 1971	17.4 °C	693 mm	76	0
1970	41.1 °C5 July 1970	1.1 °C16 February 1970	18.5 °C	556 mm	90	0
1969	40.8 °C12 July 1969	1.1 °C6 December 1969	18.2 °C	805 mm	72	0
1968	41.5 °C29 June 1968	2.0 °C12 January 1968	18.1 °C	635 mm	92	0
1967	43.5 °C19 July 1967	1.0 °C8 January 1967	17.9 °C	511 mm	70	0
1966	41.5 °C27 June 1966	2.4 °C21 November 1966	17.9 °C	381 mm	77	0
1965	42.3 °C5 August 1965	0.7 °C6 January 1965	17.8 °C	546 mm	62	0
1964	40.0 °C15 July 1964	1.2 °C31 January 1964	17.9 °C	450 mm	117	0
1963	37.3 °C19 August 1963	1.2 °C23 February 1963	17.8 °C	694 mm	71	0
1962	41.2 °C20 August 1962	1.0 °C3 February 1962	18.0 °C	543 mm	94	0
1961	42.4 °C27 August 1961	1.5 °C13 January 1961	18.7 °C	435 mm	88	0
1960	39.1 °C13 September 1960	1.7 °C9 February 1960	17.7 °C	724 mm	57	0
1959	39.3 °C16 August 1959	3.2 °C6 January 1959	17.5 °C	462 mm	54	0
1958	40.7 °C16 August 1958	1.5 °C28 February 1958	18.3 °C	357 mm	69	0
1957	40.5 °C1 August 1957	0.9 °C20 January 1957	17.6 °C	536 mm	74	0
1956	40.4 °C1 August 1956	-0.2 °C13 February 1956	17.1 °C	632 mm	80	1
1955	42.2 °C24 June 1955	3.0 °C11 March 1955	19.2 °C	669 mm	117	0
1954	44.3 °C19 August 1954	-2.2 °C9 January 1954	17.7 °C	416 mm	103	1
1953	45.0 °C20 July 1953	-1.4 °C10 January 1953	18.2 °C	398 mm	97	4
1952	43.9 °C11 July 1952	0.8 °C20 January 1952	17.6 °C	451 mm	85	0
1951	42.8 °C13 June 1951	0.9 °C27 February 1951	17.4 °C	567 mm	65	0
1950	41.1 °C28 June 1950	1.3 °C20 January 1950	18.0 °C	325 mm	85	0
1949	41.0 °C24 August 1949	1.9 °C13 January 1949	18.2 °C	460 mm	71	0
1948	41.5 °C25 June 1948	3.1 °C22 January 1948	18.2 °C	303 mm	83	0
1947	42.2 °C31 July 1947	0.6 °C21 December 1947	18.3 °C	658 mm	70	0
1946	45.3 °C13 July 1946	1.8 °C23 December 1946	17.5 °C	389 mm	86	0
1945	44.4 °C22 July 1945	-0.1 °C7 January 1945	19.0 °C	292 mm	91	1
1944	44.8 °C31 July 1944	-0.1 °C21 February 1944	18.0 °C	289 mm	77	1
1943	42.9 °C16 August 1943	-0.2 °C1 January 1943	18.4 °C	453 mm	105	1
1942	45.4 °C16 July 1942	3.3 °C4 January 1942	17.9 °C	666 mm	85	0
1941	46.2 °C21 July 1941	-2.2 °C5 January 1941	18.0 °C	426 mm	109	6
1940	44.7 °C11 August 1940	-2.3 °C24 January 1940	17.6 °C	498 mm	98	1

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

26.4 °C

+1.7 °C

Hot days (≥ 30 °C)

118 d/yr

+29

Frost days (< 0 °C)

0 d/yr

Annual rainfall

503 mm

+45 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	20.1 °C	+3.2 °C	41 mm	-20 mm
Feb	20.8 °C	+2.3 °C	32 mm	-28 mm
Mar	20.2 °C	-0.6 °C	151 mm	+91 mm
Apr	24.9 °C	+2.1 °C	35 mm	-10 mm
May	28.9 °C	+2.8 °C	9 mm	-18 mm
Jun	33.5 °C	+3.8 °C	3 mm	-6 mm
Jul	33.7 °C	+0.8 °C	0 mm	-1 mm
Aug	35.0 °C	+2.2 °C	7 mm	+5 mm
Sep	31.2 °C	+1.1 °C	4 mm	-10 mm
Oct	28.7 °C	+2.3 °C	6 mm	-38 mm
Nov	22.2 °C	+0.8 °C	66 mm	+2 mm
Dec	17.1 °C	-0.7 °C	149 mm	+80 mm

The year's extremes

Hottest day

44.5 °C

12 Aug 2025

Coldest day

2.8 °C

16 Jan 2025

Wettest day

36.0 mm

11 Mar 2025

Windiest day

24.2 km/h

13 Mar 2025

Strongest gust

71.6 km/h

13 Mar 2025

Hottest feels-like

45.1 °C

30 Jun 2025

Coldest feels-like

-0.1 °C

16 Jan 2025

Sunniest day

13.6 h

8 Jun 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 Sidi Slimane?

Sidi Slimane has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 18.4 °C and it receives 458 mm of precipitation per year.

What is the hottest day ever recorded in Sidi Slimane?

The hottest day measured in Sidi Slimane between 1940 and 2025 was 26 August 2010, reaching 46.3 °C.

What is the coldest day in Sidi Slimane?

The coldest day measured in Sidi Slimane between 1940 and 2025 was 28 January 2005, at -4.7 °C.

Does it snow in Sidi Slimane?

Almost never: Sidi Slimane sees virtually no snow, with about 0 frost days per year.

Has the climate of Sidi Slimane warmed?

Yes: Sidi Slimane warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Sidi Slimane?

The wettest day measured in Sidi Slimane between 1940 and 2025 was 30 November 2010, with 73 mm of rain in 24 hours.

What was the windiest day in Sidi Slimane?

The windiest day measured in Sidi Slimane between 1940 and 2025 was 16 February 1956, with winds reaching 37.3 km/h.

What is the warmest month in Sidi Slimane?

The warmest month in Sidi Slimane is August (25.3 °C on average); the coldest is January (11.5 °C).

How much does it rain in Sidi Slimane?

Sidi Slimane receives on average 458 mm of precipitation per year, spread over about 66 rainy days.

Is it sunny in Sidi Slimane?

Sidi Slimane gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

What is the biggest single-day snowfall in Sidi Slimane?

The heaviest 24-hour snowfall measured in Sidi Slimane between 1940 and 2025 was 13 December 1949, with 0.1 cm.

Are there tropical nights in Sidi Slimane?

Yes: Sidi Slimane has on average 31 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Sidi Slimane?

In Sidi Slimane, between 1940 and 2025, the highest apparent temperature reached 50.7 °C on 10 July 2021, and the lowest was -8.4 °C on 28 January 2005.

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