Aïn Arnat climate — normals and trends

Q: What is the climate of Aïn Arnat?

Aïn Arnat has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 14.2 °C and it receives 514 mm of precipitation per year.

Q: What is the hottest day ever recorded in Aïn Arnat?

The hottest day measured in Aïn Arnat between 1940 and 2025 was 12 August 2021, reaching 40.4 °C.

Q: What is the coldest day in Aïn Arnat?

The coldest day measured in Aïn Arnat between 1940 and 2025 was 30 December 1940, at -13.6 °C.

Q: Does it snow in Aïn Arnat?

Yes. Aïn Arnat gets on average 26.8 cm of snow per year and has around 23 frost days.

Q: Has the climate of Aïn Arnat warmed?

Yes: Aïn Arnat warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Aïn Arnat?

The wettest day measured in Aïn Arnat between 1940 and 2025 was 29 November 1967, with 79 mm of rain in 24 hours.

Q: What was the windiest day in Aïn Arnat?

The windiest day measured in Aïn Arnat between 1940 and 2025 was 7 November 1962, with winds reaching 41.1 km/h.

Q: What is the warmest month in Aïn Arnat?

The warmest month in Aïn Arnat is July (24.5 °C on average); the coldest is January (5.5 °C).

Q: How much does it rain in Aïn Arnat?

Aïn Arnat receives on average 514 mm of precipitation per year, spread over about 97 rainy days.

Q: Is it sunny in Aïn Arnat?

Aïn Arnat gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.

Aïn Arnat (Algeria) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 14.2 °C and it receives 514 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 (24.5 °C on average) and the coldest is January (5.5 °C). Rainfall peaks in April.

Aïn Arnat averages 23 frost days, 56 hot days (≥ 30 °C) and 97 rainy days per year.

Aïn Arnat has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.

The number of frost days there went from about 38 to 8 per year over the period.

The hottest day of the period reached 40.4 °C (on 12 August 2021) and the coldest -13.6 °C (on 30 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

Aïn ArnatSétif Province

coords: 36.19°, 5.31°
period: 1940–2025 · 86 yrs

CsaHot-summer MediterraneanWarmest monthJulyColdest monthJanuaryWettest monthAprilDriest monthJuly

Mean daily temperature

14.2°C

Average daily high

19.9°C

Average daily low

9.2°C

Annual rainfall

514mm

Sunshine / day

10.4h

Mean relative humidity

68%

Average peak wind

12.9km/h

Seasonal range

19.0°C

Frost days (< 0 °C)

23 d/yr

Hot days (≥ 30 °C)

56 d/yr

Rainy days (≥ 1 mm)

97 d/yr

Annual snowfall

26.8 cm

Average feels-like high

18.7 °C

Average feels-like low

7.6 °C

Average peak gust

35.7 km/h

Tropical nights (≥ 20 °C)

20 d/yr

Solar radiation

18.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.8 °C

since 1940

+0.3 °C per decade · r² = 0.70 · 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

12 August 2021

Coldest day

-13.6 °C

30 December 1940

Wettest day

79 mm

29 November 1967

Windiest day

41.1 km/h

7 November 1962

Strongest gust

106.6 km/h

1 December 1959

Hottest feels-like

41.5 °C

24 July 2009

Coldest feels-like

-18.3 °C

31 December 1940

Snowiest day

30.5 cm

1 December 1969

Sunniest day

14.0 h

17 June 1943

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	39.4 °C21 July 2025	-0.9 °C23 November 2025	16.1 °C	538 mm	82	3
2024	39.5 °C1 August 2024	-0.6 °C9 January 2024	16.6 °C	395 mm	73	3
2023	39.3 °C8 July 2023	-3.0 °C21 January 2023	16.2 °C	502 mm	77	21
2022	38.8 °C14 August 2022	-2.5 °C29 January 2022	16.5 °C	379 mm	102	16
2021	40.4 °C12 August 2021	-2.2 °C4 January 2021	16.3 °C	410 mm	85	9
2020	38.7 °C20 August 2020	-1.2 °C1 January 2020	15.6 °C	425 mm	59	8
2019	38.4 °C7 August 2019	-1.8 °C11 January 2019	15.3 °C	593 mm	71	8
2018	38.3 °C20 July 2018	-2.0 °C4 February 2018	14.8 °C	631 mm	54	11
2017	39.1 °C1 August 2017	-7.4 °C19 January 2017	15.5 °C	392 mm	73	12
2016	36.5 °C4 July 2016	-1.3 °C18 February 2016	15.5 °C	447 mm	56	7
2015	37.5 °C29 July 2015	-3.3 °C1 January 2015	15.3 °C	469 mm	73	12
2014	38.4 °C3 July 2014	-2.0 °C3 February 2014	15.7 °C	498 mm	77	8
2013	39.0 °C27 July 2013	-3.9 °C26 January 2013	14.7 °C	529 mm	53	20
2012	39.6 °C14 July 2012	-5.5 °C12 February 2012	15.5 °C	437 mm	85	33
2011	36.8 °C12 July 2011	-2.2 °C22 January 2011	15.0 °C	591 mm	60	14
2010	37.5 °C23 July 2010	-1.8 °C17 December 2010	15.0 °C	515 mm	55	17
2009	39.3 °C24 July 2009	-1.9 °C16 February 2009	15.0 °C	521 mm	77	11
2008	38.6 °C13 August 2008	-2.4 °C7 March 2008	14.9 °C	480 mm	69	15
2007	37.6 °C24 June 2007	-2.4 °C17 December 2007	15.1 °C	562 mm	69	11
2006	36.9 °C27 June 2006	-2.1 °C6 January 2006	15.4 °C	484 mm	72	15
2005	38.6 °C27 July 2005	-6.5 °C26 January 2005	14.7 °C	475 mm	60	41
2004	38.3 °C19 August 2004	-2.2 °C3 March 2004	14.8 °C	663 mm	68	13
2003	38.4 °C16 July 2003	-8.4 °C26 December 2003	15.4 °C	748 mm	71	12
2002	38.2 °C23 July 2002	-2.0 °C7 January 2002	15.3 °C	466 mm	60	9
2001	38.0 °C6 July 2001	-2.8 °C18 December 2001	15.5 °C	387 mm	69	13
2000	37.8 °C27 July 2000	-2.4 °C25 February 2000	15.2 °C	286 mm	62	30
1999	39.0 °C6 August 1999	-8.0 °C13 February 1999	15.5 °C	476 mm	80	20
1998	37.0 °C2 July 1998	-3.5 °C23 January 1998	14.6 °C	607 mm	67	10
1997	38.9 °C23 July 1997	-2.4 °C8 January 1997	15.1 °C	465 mm	58	5
1996	36.1 °C14 August 1996	-2.1 °C24 February 1996	14.0 °C	667 mm	41	9
1995	38.7 °C9 July 1995	-7.6 °C17 January 1995	14.5 °C	478 mm	50	19
1994	38.2 °C17 August 1994	-2.8 °C5 February 1994	15.5 °C	377 mm	86	17
1993	40.0 °C4 July 1993	-3.2 °C8 January 1993	14.4 °C	378 mm	65	35
1992	34.4 °C22 August 1992	-3.0 °C7 January 1992	13.7 °C	577 mm	40	25
1991	35.8 °C22 July 1991	-3.3 °C16 February 1991	13.5 °C	487 mm	56	25
1990	35.4 °C1 July 1990	-2.1 °C16 December 1990	14.8 °C	565 mm	53	14
1989	36.2 °C7 August 1989	-1.9 °C4 January 1989	14.9 °C	422 mm	42	9
1988	36.8 °C3 August 1988	-5.2 °C27 February 1988	14.8 °C	534 mm	57	14
1987	37.8 °C13 August 1987	-3.7 °C9 January 1987	15.2 °C	409 mm	66	20
1986	36.3 °C30 July 1986	-2.6 °C10 February 1986	14.3 °C	552 mm	60	19
1985	36.7 °C2 July 1985	-5.3 °C17 January 1985	14.6 °C	588 mm	64	17
1984	37.3 °C25 July 1984	-8.2 °C13 February 1984	13.6 °C	673 mm	49	26
1983	37.4 °C8 August 1983	-4.3 °C2 January 1983	14.7 °C	266 mm	63	30
1982	37.2 °C25 June 1982	-8.9 °C31 December 1982	14.4 °C	656 mm	63	20
1981	35.8 °C2 July 1981	-3.0 °C24 February 1981	14.4 °C	482 mm	38	20
1980	37.9 °C2 August 1980	-2.8 °C12 December 1980	13.4 °C	566 mm	42	26
1979	37.0 °C4 August 1979	-1.6 °C3 January 1979	13.6 °C	546 mm	41	12
1978	37.7 °C17 July 1978	-5.2 °C30 November 1978	13.3 °C	466 mm	35	23
1977	36.6 °C20 July 1977	-2.4 °C20 December 1977	14.2 °C	418 mm	31	12
1976	33.3 °C9 August 1976	-5.3 °C29 January 1976	12.7 °C	780 mm	17	29
1975	36.5 °C9 July 1975	-3.0 °C7 January 1975	13.4 °C	558 mm	47	23
1974	35.2 °C14 July 1974	-4.0 °C6 March 1974	13.5 °C	556 mm	43	23
1973	36.6 °C21 July 1973	-3.0 °C2 March 1973	13.6 °C	723 mm	61	36
1972	36.9 °C8 July 1972	-2.8 °C25 January 1972	13.0 °C	1,023 mm	27	15
1971	36.6 °C18 August 1971	-9.9 °C3 January 1971	13.4 °C	654 mm	48	25
1970	37.0 °C7 August 1970	-3.6 °C28 February 1970	14.0 °C	503 mm	43	17
1969	35.8 °C15 August 1969	-8.5 °C11 December 1969	13.3 °C	811 mm	16	29
1968	37.0 °C2 August 1968	-3.1 °C12 January 1968	14.1 °C	446 mm	36	15
1967	37.2 °C16 August 1967	-5.2 °C17 December 1967	14.1 °C	687 mm	52	36
1966	36.9 °C4 August 1966	-1.3 °C6 December 1966	13.9 °C	489 mm	45	21
1965	37.7 °C25 July 1965	-5.6 °C16 February 1965	13.6 °C	585 mm	43	34
1964	36.6 °C22 August 1964	-3.9 °C10 February 1964	13.6 °C	409 mm	42	24
1963	35.2 °C3 August 1963	-4.4 °C30 January 1963	13.1 °C	549 mm	46	32
1962	36.8 °C10 July 1962	-6.4 °C17 February 1962	13.4 °C	519 mm	44	41
1961	37.7 °C27 July 1961	-2.9 °C22 December 1961	14.4 °C	266 mm	35	13
1960	36.1 °C18 August 1960	-9.5 °C19 January 1960	13.8 °C	529 mm	38	21
1959	35.0 °C3 August 1959	-2.6 °C18 January 1959	13.8 °C	572 mm	49	17
1958	36.6 °C26 June 1958	-3.1 °C27 February 1958	14.2 °C	552 mm	60	21
1957	36.5 °C9 August 1957	-3.9 °C19 January 1957	13.2 °C	657 mm	32	29
1956	36.2 °C19 July 1956	-12.6 °C9 February 1956	12.4 °C	468 mm	57	58
1955	36.2 °C4 July 1955	-1.6 °C1 March 1955	14.0 °C	463 mm	42	15
1954	35.1 °C14 August 1954	-9.7 °C5 February 1954	12.7 °C	548 mm	47	45
1953	37.9 °C17 July 1953	-7.1 °C17 February 1953	12.9 °C	458 mm	38	41
1952	37.2 °C30 June 1952	-6.6 °C24 January 1952	14.1 °C	491 mm	68	37
1951	36.4 °C17 August 1951	-4.1 °C7 February 1951	13.3 °C	545 mm	55	31
1950	36.8 °C8 July 1950	-3.3 °C30 December 1950	13.7 °C	456 mm	68	37
1949	36.4 °C11 July 1949	-9.9 °C5 February 1949	13.3 °C	513 mm	48	31
1948	35.4 °C22 July 1948	-2.4 °C21 January 1948	13.3 °C	383 mm	40	23
1947	35.7 °C10 August 1947	-3.0 °C4 January 1947	14.4 °C	472 mm	62	27
1946	37.6 °C11 August 1946	-4.6 °C30 December 1946	14.0 °C	471 mm	68	35
1945	37.7 °C18 August 1945	-9.4 °C14 January 1945	14.1 °C	319 mm	78	50
1944	36.5 °C25 August 1944	-6.6 °C13 February 1944	13.0 °C	431 mm	59	77
1943	36.9 °C26 July 1943	-1.8 °C5 January 1943	13.3 °C	498 mm	55	20
1942	36.7 °C8 July 1942	-7.0 °C13 January 1942	13.4 °C	417 mm	58	49
1941	36.2 °C27 July 1941	-7.2 °C7 January 1941	12.7 °C	400 mm	52	46
1940	37.7 °C15 July 1940	-13.6 °C30 December 1940	12.5 °C	525 mm	49	51

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)

82 d/yr

+26

Frost days (< 0 °C)

3 d/yr

-20

Annual rainfall

538 mm

+24 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	12.2 °C	+2.0 °C	91 mm	+35 mm
Feb	13.7 °C	+2.1 °C	31 mm	-22 mm
Mar	16.4 °C	+2.0 °C	49 mm	-12 mm
Apr	19.7 °C	+2.2 °C	73 mm	+10 mm
May	23.1 °C	+0.9 °C	94 mm	+42 mm
Jun	31.0 °C	+3.7 °C	5 mm	-20 mm
Jul	32.5 °C	+1.2 °C	11 mm	+2 mm
Aug	31.5 °C	+0.5 °C	12 mm	-5 mm
Sep	28.0 °C	+1.6 °C	51 mm	+12 mm
Oct	22.3 °C	+1.5 °C	32 mm	-9 mm
Nov	15.5 °C	+0.6 °C	48 mm	+3 mm
Dec	12.4 °C	+1.5 °C	42 mm	-15 mm

The year's extremes

Hottest day

39.4 °C

21 Jul 2025

Coldest day

-0.9 °C

23 Nov 2025

Wettest day

27.3 mm

18 Jan 2025

Windiest day

28.3 km/h

12 Jan 2025

Strongest gust

76.3 km/h

13 Mar 2025

Hottest feels-like

39.7 °C

21 Jul 2025

Coldest feels-like

-4.3 °C

23 Nov 2025

Snowiest day

2.6 cm

17 Jan 2025

Sunniest day

14.0 h

14 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 Aïn Arnat?

Aïn Arnat has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 14.2 °C and it receives 514 mm of precipitation per year.

What is the hottest day ever recorded in Aïn Arnat?

The hottest day measured in Aïn Arnat between 1940 and 2025 was 12 August 2021, reaching 40.4 °C.

What is the coldest day in Aïn Arnat?

The coldest day measured in Aïn Arnat between 1940 and 2025 was 30 December 1940, at -13.6 °C.

Does it snow in Aïn Arnat?

Yes. Aïn Arnat gets on average 26.8 cm of snow per year and has around 23 frost days.

Has the climate of Aïn Arnat warmed?

Yes: Aïn Arnat warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Aïn Arnat?

The wettest day measured in Aïn Arnat between 1940 and 2025 was 29 November 1967, with 79 mm of rain in 24 hours.

What was the windiest day in Aïn Arnat?

The windiest day measured in Aïn Arnat between 1940 and 2025 was 7 November 1962, with winds reaching 41.1 km/h.

What is the warmest month in Aïn Arnat?

The warmest month in Aïn Arnat is July (24.5 °C on average); the coldest is January (5.5 °C).

How much does it rain in Aïn Arnat?

Aïn Arnat receives on average 514 mm of precipitation per year, spread over about 97 rainy days.

Is it sunny in Aïn Arnat?

Aïn Arnat gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.

What is the biggest single-day snowfall in Aïn Arnat?

The heaviest 24-hour snowfall measured in Aïn Arnat between 1940 and 2025 was 1 December 1969, with 30.5 cm.

Are there tropical nights in Aïn Arnat?

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

What was the most extreme apparent temperature in Aïn Arnat?

In Aïn Arnat, between 1940 and 2025, the highest apparent temperature reached 41.5 °C on 24 July 2009, and the lowest was -18.3 °C on 31 December 1940.

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