Assa climate — normals and trends

Q: What is the climate of Assa?

Assa has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 21.8 °C and it receives 46 mm of precipitation per year.

Q: What is the hottest day ever recorded in Assa?

The hottest day measured in Assa between 1940 and 2025 was 18 July 2021, reaching 48.5 °C.

Q: What is the coldest day in Assa?

The coldest day measured in Assa between 1940 and 2025 was 20 December 1940, at -0.6 °C.

Q: Does it snow in Assa?

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

Q: Has the climate of Assa warmed?

Yes: Assa warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Assa?

The wettest day measured in Assa between 1940 and 2025 was 9 January 1960, with 48 mm of rain in 24 hours.

Q: What was the windiest day in Assa?

The windiest day measured in Assa between 1940 and 2025 was 13 February 1989, with winds reaching 53.2 km/h.

Q: What is the warmest month in Assa?

The warmest month in Assa is August (30.4 °C on average); the coldest is January (14.0 °C).

Q: How much does it rain in Assa?

Assa receives on average 46 mm of precipitation per year, spread over about 9 rainy days.

Q: Is it sunny in Assa?

Assa gets on average 11.4 hours of sunshine per day, roughly 4,161 hours per year over 1940-2025.

Assa (Morocco) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 21.8 °C and it receives 46 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 (30.4 °C on average) and the coldest is January (14.0 °C). Rainfall peaks in November.

Assa averages 0 frost days, 160 hot days (≥ 30 °C) and 9 rainy days per year.

Assa has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.

The hottest day of the period reached 48.5 °C (on 18 July 2021) and the coldest -0.6 °C (on 20 December 1940).

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

AssaGuelmim-Oued Noun

coords: 28.61°, -9.43°
period: 1940–2025 · 86 yrs

BWhHot desertWarmest monthAugustColdest monthJanuaryWettest monthNovemberDriest monthMay

Mean daily temperature

21.8°C

Average daily high

29.3°C

Average daily low

15.0°C

Annual rainfall

46mm

Sunshine / day

11.4h

Mean relative humidity

47%

Average peak wind

23.4km/h

Seasonal range

16.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

160 d/yr

Rainy days (≥ 1 mm)

9 d/yr

Annual snowfall

0.0 cm

Average feels-like high

26.6 °C

Average feels-like low

13.3 °C

Average peak gust

42.8 km/h

Tropical nights (≥ 20 °C)

64 d/yr

Solar radiation

22.2 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.8 °C

since 1940

+0.2 °C per decade · r² = 0.41 · 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

48.5 °C

18 July 2021

Coldest day

-0.6 °C

20 December 1940

Wettest day

48 mm

9 January 1960

Windiest day

53.2 km/h

13 February 1989

Strongest gust

91.4 km/h

13 February 1989

Hottest feels-like

48.5 °C

5 August 1998

Coldest feels-like

-4.9 °C

20 December 1940

Sunniest day

13.2 h

29 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	46.2 °C6 August 2025	5.3 °C8 February 2025	23.2 °C	16 mm	190	0
2024	47.3 °C25 July 2024	6.0 °C13 December 2024	23.3 °C	26 mm	196	0
2023	48.4 °C12 July 2023	3.5 °C25 January 2023	23.6 °C	49 mm	210	0
2022	47.4 °C26 July 2022	6.1 °C9 March 2022	23.8 °C	24 mm	205	0
2021	48.5 °C18 July 2021	3.1 °C15 January 2021	22.6 °C	34 mm	180	0
2020	46.5 °C27 August 2020	3.6 °C9 January 2020	23.4 °C	19 mm	181	0
2019	44.6 °C23 August 2019	3.8 °C11 January 2019	22.6 °C	8 mm	181	0
2018	45.4 °C10 July 2018	3.9 °C10 February 2018	21.6 °C	66 mm	135	0
2017	46.6 °C27 July 2017	3.8 °C27 December 2017	23.5 °C	15 mm	220	0
2016	45.7 °C15 July 2016	5.5 °C23 February 2016	22.6 °C	49 mm	160	0
2015	44.7 °C22 July 2015	3.7 °C6 January 2015	22.2 °C	54 mm	163	0
2014	45.1 °C30 June 2014	3.5 °C4 January 2014	22.3 °C	118 mm	186	0
2013	46.8 °C16 August 2013	4.0 °C12 January 2013	22.3 °C	42 mm	171	0
2012	47.0 °C16 July 2012	1.3 °C21 January 2012	22.9 °C	22 mm	172	0
2011	46.5 °C30 July 2011	5.0 °C30 December 2011	23.0 °C	30 mm	173	0
2010	46.3 °C28 August 2010	4.9 °C30 January 2010	23.3 °C	58 mm	165	0
2009	47.3 °C30 July 2009	2.7 °C13 January 2009	23.0 °C	54 mm	189	0
2008	45.3 °C28 June 2008	3.3 °C17 December 2008	22.3 °C	45 mm	164	0
2007	47.1 °C28 July 2007	4.8 °C31 January 2007	22.1 °C	24 mm	163	0
2006	45.8 °C10 July 2006	3.4 °C19 January 2006	22.4 °C	80 mm	188	0
2005	45.7 °C6 August 2005	0.2 °C29 January 2005	22.1 °C	54 mm	191	0
2004	45.8 °C27 July 2004	3.6 °C30 December 2004	22.1 °C	18 mm	167	0
2003	45.9 °C19 July 2003	2.9 °C17 January 2003	22.7 °C	54 mm	171	0
2002	44.7 °C22 June 2002	6.8 °C25 December 2002	22.1 °C	100 mm	177	0
2001	46.0 °C6 August 2001	5.0 °C8 January 2001	22.8 °C	10 mm	195	0
2000	45.9 °C21 July 2000	2.5 °C6 January 2000	22.2 °C	6 mm	159	0
1999	47.5 °C2 July 1999	3.7 °C28 January 1999	21.7 °C	45 mm	179	0
1998	47.6 °C5 August 1998	6.1 °C26 January 1998	22.5 °C	43 mm	166	0
1997	42.7 °C15 August 1997	4.6 °C21 January 1997	21.7 °C	20 mm	154	0
1996	44.1 °C3 August 1996	4.7 °C28 February 1996	21.6 °C	103 mm	172	0
1995	46.1 °C19 July 1995	5.6 °C27 January 1995	22.1 °C	37 mm	168	0
1994	45.7 °C10 July 1994	3.5 °C19 January 1994	22.3 °C	38 mm	158	0
1993	45.4 °C28 July 1993	4.1 °C7 January 1993	20.3 °C	47 mm	116	0
1992	44.3 °C13 August 1992	2.7 °C25 January 1992	21.1 °C	24 mm	121	0
1991	45.1 °C16 July 1991	3.1 °C30 January 1991	21.2 °C	97 mm	144	0
1990	46.1 °C5 July 1990	3.5 °C14 January 1990	22.3 °C	21 mm	159	0
1989	45.4 °C20 July 1989	5.5 °C5 January 1989	21.9 °C	78 mm	162	0
1988	47.0 °C15 July 1988	5.2 °C17 February 1988	21.6 °C	115 mm	141	0
1987	46.8 °C27 July 1987	3.2 °C3 January 1987	22.3 °C	45 mm	172	0
1986	44.7 °C11 July 1986	4.1 °C26 December 1986	21.3 °C	31 mm	131	0
1985	45.6 °C7 July 1985	3.6 °C13 January 1985	22.2 °C	37 mm	160	0
1984	44.8 °C20 July 1984	4.2 °C13 January 1984	21.7 °C	36 mm	148	0
1983	45.7 °C5 September 1983	4.3 °C2 January 1983	22.3 °C	30 mm	179	0
1982	45.9 °C25 July 1982	3.5 °C27 December 1982	21.2 °C	24 mm	135	0
1981	45.4 °C20 July 1981	1.2 °C16 January 1981	21.9 °C	29 mm	160	0
1980	45.8 °C20 July 1980	4.8 °C2 January 1980	22.1 °C	32 mm	158	0
1979	46.9 °C28 July 1979	3.8 °C25 December 1979	21.2 °C	80 mm	137	0
1978	45.5 °C22 July 1978	4.5 °C15 January 1978	21.5 °C	47 mm	129	0
1977	44.4 °C10 August 1977	5.4 °C5 January 1977	20.8 °C	43 mm	140	0
1976	44.4 °C5 August 1976	3.6 °C29 January 1976	20.2 °C	46 mm	118	0
1975	46.0 °C14 July 1975	4.8 °C25 January 1975	21.5 °C	12 mm	129	0
1974	46.1 °C21 July 1974	4.4 °C26 December 1974	21.0 °C	34 mm	135	0
1973	47.0 °C26 July 1973	3.8 °C1 January 1973	21.4 °C	26 mm	155	0
1972	46.1 °C23 July 1972	3.0 °C25 January 1972	19.6 °C	84 mm	120	0
1971	45.9 °C30 June 1971	4.3 °C11 January 1971	20.7 °C	42 mm	135	0
1970	46.3 °C17 July 1970	4.4 °C16 January 1970	22.1 °C	32 mm	143	0
1969	44.6 °C28 July 1969	3.9 °C4 December 1969	21.2 °C	42 mm	137	0
1968	46.3 °C21 July 1968	2.1 °C7 January 1968	21.4 °C	63 mm	161	0
1967	46.3 °C21 July 1967	2.4 °C13 December 1967	21.4 °C	147 mm	146	0
1966	45.6 °C6 August 1966	4.4 °C2 December 1966	21.6 °C	36 mm	150	0
1965	45.1 °C5 August 1965	0.5 °C7 January 1965	21.5 °C	81 mm	149	0
1964	46.0 °C9 July 1964	3.6 °C29 January 1964	21.9 °C	35 mm	178	0
1963	45.6 °C10 July 1963	0.7 °C24 December 1963	20.7 °C	21 mm	149	0
1962	45.7 °C17 July 1962	2.5 °C16 December 1962	21.8 °C	59 mm	159	0
1961	44.9 °C13 July 1961	1.9 °C17 January 1961	22.4 °C	17 mm	165	0
1960	45.5 °C18 July 1960	2.3 °C19 December 1960	21.2 °C	81 mm	148	0
1959	45.8 °C15 August 1959	4.2 °C5 February 1959	20.7 °C	21 mm	147	0
1958	44.9 °C20 July 1958	3.9 °C17 January 1958	21.7 °C	27 mm	155	0
1957	45.7 °C22 July 1957	-0.1 °C21 January 1957	20.7 °C	81 mm	139	1
1956	46.3 °C5 July 1956	2.1 °C22 February 1956	20.5 °C	44 mm	157	0
1955	45.5 °C15 July 1955	4.5 °C20 February 1955	22.1 °C	33 mm	177	0
1954	45.4 °C13 July 1954	0.6 °C25 December 1954	20.8 °C	87 mm	158	0
1953	45.0 °C19 July 1953	3.6 °C11 January 1953	20.7 °C	170 mm	142	0
1952	44.3 °C9 August 1952	1.5 °C23 January 1952	21.3 °C	18 mm	155	0
1951	44.8 °C29 July 1951	3.7 °C9 January 1951	20.8 °C	87 mm	142	0
1950	45.2 °C17 July 1950	2.5 °C27 January 1950	21.6 °C	57 mm	141	0
1949	45.2 °C21 July 1949	2.9 °C4 January 1949	21.1 °C	134 mm	149	0
1948	45.7 °C26 July 1948	1.1 °C6 January 1948	21.6 °C	18 mm	145	0
1947	43.7 °C4 August 1947	0.4 °C30 January 1947	21.5 °C	24 mm	181	0
1946	45.7 °C22 July 1946	2.0 °C27 December 1946	21.7 °C	7 mm	141	0
1945	44.5 °C21 July 1945	1.6 °C9 January 1945	22.3 °C	21 mm	197	0
1944	47.1 °C11 July 1944	1.9 °C31 December 1944	21.2 °C	19 mm	162	0
1943	45.4 °C12 July 1943	-0.5 °C1 January 1943	21.8 °C	40 mm	153	1
1942	44.9 °C14 July 1942	2.4 °C9 January 1942	22.1 °C	15 mm	172	0
1941	46.0 °C18 July 1941	1.4 °C18 January 1941	21.7 °C	25 mm	160	0
1940	44.8 °C24 July 1940	-0.6 °C20 December 1940	21.1 °C	6 mm	142	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

31.1 °C

+1.8 °C

Hot days (≥ 30 °C)

190 d/yr

+30

Frost days (< 0 °C)

0 d/yr

Annual rainfall

16 mm

-30 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	22.7 °C	+2.6 °C	0 mm	-5 mm
Feb	24.1 °C	+1.5 °C	0 mm	-6 mm
Mar	25.2 °C	-0.6 °C	1 mm	-4 mm
Apr	29.7 °C	+1.7 °C	0 mm	-1 mm
May	32.0 °C	+1.2 °C	0 mm	-1 mm
Jun	39.2 °C	+5.2 °C	3 mm	+2 mm
Jul	40.8 °C	+1.0 °C	1 mm	+0 mm
Aug	40.9 °C	+1.3 °C	1 mm	-0 mm
Sep	36.0 °C	+1.0 °C	1 mm	-2 mm
Oct	33.2 °C	+3.1 °C	0 mm	-6 mm
Nov	28.0 °C	+3.2 °C	1 mm	-7 mm
Dec	21.0 °C	+0.5 °C	6 mm	-2 mm

The year's extremes

Hottest day

46.2 °C

6 Aug 2025

Coldest day

5.3 °C

8 Feb 2025

Wettest day

3.1 mm

12 Dec 2025

Windiest day

40.9 km/h

4 Jun 2025

Strongest gust

73.8 km/h

4 Jun 2025

Hottest feels-like

46.8 °C

17 Jul 2025

Coldest feels-like

2.6 °C

8 Feb 2025

Sunniest day

13.1 h

12 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 Assa?

Assa has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 21.8 °C and it receives 46 mm of precipitation per year.

What is the hottest day ever recorded in Assa?

The hottest day measured in Assa between 1940 and 2025 was 18 July 2021, reaching 48.5 °C.

What is the coldest day in Assa?

The coldest day measured in Assa between 1940 and 2025 was 20 December 1940, at -0.6 °C.

Does it snow in Assa?

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

Has the climate of Assa warmed?

Yes: Assa warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Assa?

The wettest day measured in Assa between 1940 and 2025 was 9 January 1960, with 48 mm of rain in 24 hours.

What was the windiest day in Assa?

The windiest day measured in Assa between 1940 and 2025 was 13 February 1989, with winds reaching 53.2 km/h.

What is the warmest month in Assa?

The warmest month in Assa is August (30.4 °C on average); the coldest is January (14.0 °C).

How much does it rain in Assa?

Assa receives on average 46 mm of precipitation per year, spread over about 9 rainy days.

Is it sunny in Assa?

Assa gets on average 11.4 hours of sunshine per day, roughly 4,161 hours per year over 1940-2025.

Are there tropical nights in Assa?

Yes: Assa has on average 64 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Assa?

In Assa, between 1940 and 2025, the highest apparent temperature reached 48.5 °C on 5 August 1998, and the lowest was -4.9 °C on 20 December 1940.

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