Râs el Aïoun climate — normals and trends

Q: What is the climate of Râs el Aïoun?

Râs el Aïoun has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 14.1 °C and it receives 352 mm of precipitation per year.

Q: What is the hottest day ever recorded in Râs el Aïoun?

The hottest day measured in Râs el Aïoun between 1940 and 2025 was 10 July 2024, reaching 40.4 °C.

Q: What is the coldest day in Râs el Aïoun?

The coldest day measured in Râs el Aïoun between 1940 and 2025 was 31 December 1940, at -11.7 °C.

Q: Does it snow in Râs el Aïoun?

Yes. Râs el Aïoun gets on average 18.6 cm of snow per year and has around 29 frost days.

Q: Has the climate of Râs el Aïoun warmed?

Yes: Râs el Aïoun warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Râs el Aïoun?

The wettest day measured in Râs el Aïoun between 1940 and 2025 was 24 May 1992, with 47 mm of rain in 24 hours.

Q: What was the windiest day in Râs el Aïoun?

The windiest day measured in Râs el Aïoun between 1940 and 2025 was 11 April 2002, with winds reaching 39.1 km/h.

Q: What is the warmest month in Râs el Aïoun?

The warmest month in Râs el Aïoun is July (25.3 °C on average); the coldest is January (4.8 °C).

Q: How much does it rain in Râs el Aïoun?

Râs el Aïoun receives on average 352 mm of precipitation per year, spread over about 76 rainy days.

Q: Is it sunny in Râs el Aïoun?

Râs el Aïoun gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

Râs el Aïoun (Algeria) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 14.1 °C and it receives 352 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 July (25.3 °C on average) and the coldest is January (4.8 °C). Rainfall peaks in April.

Râs el Aïoun averages 29 frost days, 65 hot days (≥ 30 °C) and 76 rainy days per year.

Râs el Aïoun has warmed by +3.0 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.

The number of frost days there went from about 46 to 12 per year over the period.

The hottest day of the period reached 40.4 °C (on 10 July 2024) and the coldest -11.7 °C (on 31 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

Râs el AïounBatna

coords: 35.67°, 5.65°
period: 1940–2025 · 86 yrs

BSkCold semi-aridWarmest monthJulyColdest monthJanuaryWettest monthAprilDriest monthJuly

Mean daily temperature

14.1°C

Average daily high

19.9°C

Average daily low

8.9°C

Annual rainfall

352mm

Sunshine / day

10.7h

Mean relative humidity

63%

Average peak wind

14.4km/h

Seasonal range

20.5°C

Frost days (< 0 °C)

29 d/yr

Hot days (≥ 30 °C)

65 d/yr

Rainy days (≥ 1 mm)

76 d/yr

Annual snowfall

18.6 cm

Average feels-like high

18.0 °C

Average feels-like low

7.0 °C

Average peak gust

39.8 km/h

Tropical nights (≥ 20 °C)

21 d/yr

Solar radiation

18.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+3.0 °C

since 1940

+0.4 °C per decade · r² = 0.71 · 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

40.4 °C

10 July 2024

Coldest day

-11.7 °C

31 December 1940

Wettest day

47 mm

24 May 1992

Windiest day

39.1 km/h

11 April 2002

Strongest gust

103.7 km/h

13 December 1957

Hottest feels-like

40.6 °C

30 July 2023

Coldest feels-like

-16.8 °C

31 December 1940

Snowiest day

20.7 cm

7 March 1985

Sunniest day

13.9 h

28 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	38.5 °C22 July 2025	-1.0 °C10 February 2025	15.9 °C	358 mm	93	10
2024	40.4 °C10 July 2024	-1.4 °C1 March 2024	16.6 °C	239 mm	88	7
2023	40.2 °C29 July 2023	-3.3 °C21 January 2023	16.2 °C	285 mm	87	25
2022	38.6 °C1 July 2022	-2.2 °C22 January 2022	16.3 °C	280 mm	111	20
2021	40.1 °C5 July 2021	-4.4 °C4 January 2021	16.4 °C	269 mm	106	14
2020	38.3 °C21 August 2020	-2.0 °C1 January 2020	15.6 °C	279 mm	72	15
2019	38.3 °C14 July 2019	-2.7 °C11 January 2019	15.2 °C	443 mm	82	21
2018	39.0 °C15 July 2018	-2.0 °C8 February 2018	14.7 °C	455 mm	58	18
2017	39.6 °C12 July 2017	-6.4 °C18 January 2017	15.4 °C	238 mm	82	18
2016	37.6 °C31 July 2016	-2.2 °C18 February 2016	15.5 °C	310 mm	80	9
2015	38.4 °C3 August 2015	-4.5 °C10 February 2015	15.1 °C	291 mm	83	20
2014	38.7 °C26 July 2014	-4.6 °C31 December 2014	15.7 °C	297 mm	94	11
2013	38.1 °C28 July 2013	-3.4 °C26 January 2013	14.9 °C	307 mm	75	33
2012	40.0 °C12 July 2012	-9.9 °C8 February 2012	15.5 °C	297 mm	93	33
2011	38.4 °C22 July 2011	-3.6 °C22 January 2011	14.9 °C	395 mm	82	19
2010	39.6 °C23 July 2010	-2.8 °C28 December 2010	15.0 °C	354 mm	71	22
2009	38.7 °C24 July 2009	-1.9 °C22 March 2009	14.8 °C	399 mm	86	12
2008	39.4 °C12 July 2008	-7.3 °C7 March 2008	15.0 °C	374 mm	84	22
2007	38.5 °C19 June 2007	-2.9 °C17 December 2007	15.0 °C	374 mm	82	19
2006	38.1 °C18 August 2006	-1.8 °C26 January 2006	15.3 °C	401 mm	80	26
2005	39.9 °C26 July 2005	-4.9 °C27 January 2005	15.0 °C	297 mm	81	47
2004	38.4 °C10 August 2004	-2.9 °C3 March 2004	14.6 °C	480 mm	67	20
2003	39.2 °C17 July 2003	-4.2 °C1 February 2003	15.1 °C	545 mm	78	22
2002	37.8 °C23 July 2002	-2.7 °C7 January 2002	15.3 °C	313 mm	71	14
2001	37.6 °C29 July 2001	-3.3 °C18 December 2001	15.6 °C	265 mm	82	20
2000	38.0 °C28 July 2000	-2.8 °C4 January 2000	15.1 °C	229 mm	65	25
1999	38.6 °C8 August 1999	-7.5 °C1 February 1999	15.7 °C	355 mm	99	28
1998	37.6 °C4 July 1998	-2.5 °C22 November 1998	14.5 °C	343 mm	72	24
1997	39.4 °C23 July 1997	-2.4 °C8 January 1997	15.0 °C	364 mm	74	7
1996	37.0 °C7 August 1996	-3.1 °C28 December 1996	13.9 °C	507 mm	45	16
1995	38.1 °C9 July 1995	-5.6 °C16 January 1995	14.5 °C	298 mm	62	23
1994	37.8 °C11 August 1994	-3.7 °C5 February 1994	15.5 °C	206 mm	93	20
1993	39.3 °C4 July 1993	-2.9 °C3 March 1993	14.4 °C	230 mm	73	30
1992	35.2 °C24 August 1992	-3.3 °C24 January 1992	13.6 °C	399 mm	41	30
1991	37.0 °C25 July 1991	-3.1 °C31 December 1991	13.3 °C	369 mm	59	25
1990	35.7 °C1 July 1990	-2.0 °C12 December 1990	14.6 °C	429 mm	53	20
1989	36.9 °C7 August 1989	-1.5 °C7 February 1989	14.5 °C	342 mm	50	11
1988	38.2 °C5 July 1988	-3.3 °C27 February 1988	14.8 °C	299 mm	66	23
1987	37.5 °C16 August 1987	-8.3 °C20 February 1987	15.0 °C	287 mm	66	27
1986	35.0 °C30 July 1986	-3.4 °C10 February 1986	13.9 °C	423 mm	64	26
1985	36.9 °C29 July 1985	-5.7 °C17 January 1985	14.5 °C	452 mm	75	22
1984	35.7 °C25 July 1984	-7.6 °C13 February 1984	13.5 °C	353 mm	62	33
1983	36.7 °C19 July 1983	-3.8 °C22 January 1983	14.6 °C	167 mm	72	35
1982	36.5 °C25 June 1982	-5.8 °C27 January 1982	14.1 °C	440 mm	66	23
1981	37.2 °C3 July 1981	-3.0 °C29 January 1981	14.5 °C	274 mm	50	24
1980	37.3 °C1 August 1980	-4.2 °C11 December 1980	13.4 °C	467 mm	56	29
1979	37.2 °C6 August 1979	-2.9 °C3 January 1979	13.5 °C	375 mm	51	25
1978	38.4 °C17 July 1978	-4.2 °C14 January 1978	13.4 °C	281 mm	44	29
1977	37.4 °C12 July 1977	-3.0 °C20 December 1977	14.4 °C	326 mm	51	15
1976	34.2 °C16 August 1976	-3.7 °C13 February 1976	12.5 °C	578 mm	33	31
1975	36.7 °C30 June 1975	-3.7 °C28 February 1975	13.4 °C	398 mm	67	38
1974	35.8 °C4 August 1974	-3.1 °C9 February 1974	13.4 °C	374 mm	63	26
1973	37.2 °C19 July 1973	-4.2 °C2 March 1973	13.6 °C	467 mm	71	38
1972	35.5 °C8 July 1972	-3.9 °C22 January 1972	12.6 °C	789 mm	37	17
1971	36.2 °C28 June 1971	-10.4 °C3 January 1971	13.1 °C	439 mm	57	42
1970	37.1 °C23 July 1970	-3.2 °C28 February 1970	13.6 °C	376 mm	50	26
1969	35.8 °C15 August 1969	-4.1 °C3 December 1969	13.2 °C	532 mm	23	33
1968	36.3 °C2 August 1968	-3.1 °C1 March 1968	13.8 °C	330 mm	37	19
1967	36.6 °C16 August 1967	-3.5 °C16 March 1967	14.0 °C	393 mm	57	43
1966	36.4 °C3 August 1966	-1.9 °C18 March 1966	13.8 °C	327 mm	57	21
1965	38.4 °C26 July 1965	-4.6 °C16 February 1965	13.4 °C	393 mm	51	36
1964	35.6 °C18 August 1964	-3.2 °C10 February 1964	13.5 °C	350 mm	50	36
1963	33.7 °C3 August 1963	-4.7 °C3 February 1963	12.8 °C	416 mm	47	37
1962	35.7 °C13 July 1962	-6.4 °C10 February 1962	13.2 °C	325 mm	45	44
1961	35.5 °C27 July 1961	-2.8 °C27 January 1961	14.1 °C	225 mm	37	24
1960	36.5 °C18 August 1960	-8.6 °C19 January 1960	13.7 °C	404 mm	53	22
1959	36.5 °C31 July 1959	-2.7 °C20 February 1959	13.6 °C	363 mm	61	22
1958	36.0 °C7 July 1958	-3.3 °C28 February 1958	14.1 °C	396 mm	73	25
1957	34.8 °C18 August 1957	-4.7 °C19 January 1957	13.1 °C	481 mm	47	33
1956	36.4 °C21 July 1956	-9.8 °C21 February 1956	12.4 °C	256 mm	68	72
1955	36.3 °C27 July 1955	-3.3 °C1 March 1955	13.9 °C	293 mm	49	16
1954	36.0 °C29 July 1954	-11.6 °C7 January 1954	12.5 °C	332 mm	50	51
1953	35.8 °C17 July 1953	-7.1 °C17 February 1953	12.7 °C	291 mm	39	52
1952	36.9 °C30 June 1952	-6.5 °C24 January 1952	13.9 °C	304 mm	74	57
1951	36.5 °C20 July 1951	-5.9 °C7 February 1951	13.1 °C	404 mm	53	48
1950	35.4 °C14 July 1950	-3.2 °C20 January 1950	13.4 °C	363 mm	73	49
1949	36.7 °C15 July 1949	-6.6 °C4 February 1949	13.2 °C	304 mm	55	43
1948	35.9 °C8 August 1948	-2.6 °C22 January 1948	13.2 °C	265 mm	46	26
1947	35.4 °C7 August 1947	-3.4 °C2 February 1947	14.1 °C	318 mm	62	37
1946	37.7 °C12 August 1946	-4.2 °C6 January 1946	14.0 °C	213 mm	77	45
1945	36.7 °C8 August 1945	-10.9 °C4 January 1945	13.9 °C	211 mm	84	54
1944	36.2 °C22 July 1944	-5.2 °C13 February 1944	12.9 °C	266 mm	62	78
1943	35.8 °C27 July 1943	-2.6 °C30 December 1943	12.9 °C	388 mm	40	36
1942	36.3 °C9 July 1942	-6.0 °C12 January 1942	13.3 °C	272 mm	61	55
1941	37.2 °C3 August 1941	-6.6 °C6 January 1941	12.6 °C	279 mm	54	59
1940	36.7 °C27 July 1940	-11.7 °C31 December 1940	12.1 °C	361 mm	47	71

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

21.6 °C

+1.7 °C

Hot days (≥ 30 °C)

93 d/yr

+28

Frost days (< 0 °C)

10 d/yr

-19

Annual rainfall

358 mm

+6 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	11.3 °C	+1.9 °C	48 mm	+17 mm
Feb	12.9 °C	+1.9 °C	18 mm	-11 mm
Mar	16.4 °C	+2.3 °C	30 mm	-10 mm
Apr	19.8 °C	+2.1 °C	59 mm	+16 mm
May	24.1 °C	+1.4 °C	60 mm	+19 mm
Jun	32.0 °C	+3.6 °C	4 mm	-18 mm
Jul	33.4 °C	+1.1 °C	12 mm	+2 mm
Aug	32.7 °C	+1.1 °C	14 mm	-2 mm
Sep	28.1 °C	+1.7 °C	48 mm	+16 mm
Oct	21.8 °C	+1.4 °C	13 mm	-17 mm
Nov	14.9 °C	+0.6 °C	17 mm	-12 mm
Dec	11.4 °C	+1.3 °C	36 mm	+6 mm

The year's extremes

Hottest day

38.5 °C

22 Jul 2025

Coldest day

-1.0 °C

10 Feb 2025

Wettest day

29.0 mm

26 Sep 2025

Windiest day

32.4 km/h

13 Apr 2025

Strongest gust

78.5 km/h

30 Mar 2025

Hottest feels-like

36.6 °C

8 Jul 2025

Coldest feels-like

-4.6 °C

10 Feb 2025

Snowiest day

3.0 cm

17 Jan 2025

Sunniest day

13.9 h

28 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 Râs el Aïoun?

Râs el Aïoun has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 14.1 °C and it receives 352 mm of precipitation per year.

What is the hottest day ever recorded in Râs el Aïoun?

The hottest day measured in Râs el Aïoun between 1940 and 2025 was 10 July 2024, reaching 40.4 °C.

What is the coldest day in Râs el Aïoun?

The coldest day measured in Râs el Aïoun between 1940 and 2025 was 31 December 1940, at -11.7 °C.

Does it snow in Râs el Aïoun?

Yes. Râs el Aïoun gets on average 18.6 cm of snow per year and has around 29 frost days.

Has the climate of Râs el Aïoun warmed?

Yes: Râs el Aïoun warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Râs el Aïoun?

The wettest day measured in Râs el Aïoun between 1940 and 2025 was 24 May 1992, with 47 mm of rain in 24 hours.

What was the windiest day in Râs el Aïoun?

The windiest day measured in Râs el Aïoun between 1940 and 2025 was 11 April 2002, with winds reaching 39.1 km/h.

What is the warmest month in Râs el Aïoun?

The warmest month in Râs el Aïoun is July (25.3 °C on average); the coldest is January (4.8 °C).

How much does it rain in Râs el Aïoun?

Râs el Aïoun receives on average 352 mm of precipitation per year, spread over about 76 rainy days.

Is it sunny in Râs el Aïoun?

Râs el Aïoun 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 Râs el Aïoun?

The heaviest 24-hour snowfall measured in Râs el Aïoun between 1940 and 2025 was 7 March 1985, with 20.7 cm.

Are there tropical nights in Râs el Aïoun?

Yes: Râs el Aïoun has on average 21 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Râs el Aïoun?

In Râs el Aïoun, between 1940 and 2025, the highest apparent temperature reached 40.6 °C on 30 July 2023, and the lowest was -16.8 °C on 31 December 1940.

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