Blida climate — normals and trends

Q: What is the climate of Blida?

Blida has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.7 °C and it receives 640 mm of precipitation per year.

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

The hottest day measured in Blida between 1940 and 2025 was 23 July 2023, reaching 40.0 °C.

Q: What is the coldest day in Blida?

The coldest day measured in Blida between 1940 and 2025 was 27 January 2005, at -5.1 °C.

Q: Does it snow in Blida?

Yes. Blida gets on average 6.1 cm of snow per year and has around 0 frost days.

Q: Has the climate of Blida warmed?

Yes: Blida warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Blida?

The wettest day measured in Blida between 1940 and 2025 was 10 October 1984, with 106 mm of rain in 24 hours.

Q: What was the windiest day in Blida?

The windiest day measured in Blida between 1940 and 2025 was 10 January 1987, with winds reaching 48.3 km/h.

Q: What is the warmest month in Blida?

The warmest month in Blida is August (25.2 °C on average); the coldest is January (9.7 °C).

Q: How much does it rain in Blida?

Blida receives on average 640 mm of precipitation per year, spread over about 92 rainy days.

Q: Is it sunny in Blida?

Blida gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.

Blida (Algeria) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.7 °C and it receives 640 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 (25.2 °C on average) and the coldest is January (9.7 °C). Rainfall peaks in December.

Blida averages 0 frost days, 32 hot days (≥ 30 °C) and 92 rainy days per year.

Blida has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.

The hottest day of the period reached 40.0 °C (on 23 July 2023) and the coldest -5.1 °C (on 27 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

BlidaBlida Province

coords: 36.47°, 2.83°
period: 1940–2025 · 86 yrs

CsaHot-summer MediterraneanWarmest monthAugustColdest monthJanuaryWettest monthDecemberDriest monthJuly

Mean daily temperature

16.7°C

Average daily high

20.6°C

Average daily low

13.1°C

Annual rainfall

640mm

Sunshine / day

10.8h

Mean relative humidity

72%

Average peak wind

15.8km/h

Seasonal range

15.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

32 d/yr

Rainy days (≥ 1 mm)

92 d/yr

Annual snowfall

6.1 cm

Average feels-like high

20.4 °C

Average feels-like low

12.0 °C

Average peak gust

34.6 km/h

Tropical nights (≥ 20 °C)

53 d/yr

Solar radiation

18.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.0 °C

since 1940

+0.2 °C per decade · r² = 0.52 · 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

40.0 °C

23 July 2023

Coldest day

-5.1 °C

27 January 2005

Wettest day

106 mm

10 October 1984

Windiest day

48.3 km/h

10 January 1987

Strongest gust

114.1 km/h

10 January 1987

Hottest feels-like

41.5 °C

18 July 2023

Coldest feels-like

-8.8 °C

27 January 2005

Snowiest day

9.2 cm

10 January 1945

Sunniest day

14.0 h

2 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	35.5 °C25 August 2025	6.3 °C23 November 2025	18.8 °C	549 mm	56	0
2024	36.3 °C10 August 2024	5.8 °C13 January 2024	19.0 °C	420 mm	64	0
2023	40.0 °C23 July 2023	2.1 °C24 January 2023	18.5 °C	525 mm	58	0
2022	39.6 °C14 August 2022	3.5 °C20 January 2022	18.6 °C	514 mm	76	0
2021	37.7 °C11 August 2021	3.7 °C2 January 2021	18.3 °C	508 mm	57	0
2020	36.0 °C30 June 2020	4.7 °C6 January 2020	18.1 °C	434 mm	45	0
2019	36.1 °C7 July 2019	2.6 °C11 January 2019	17.5 °C	564 mm	41	0
2018	34.2 °C3 September 2018	1.2 °C10 February 2018	17.1 °C	884 mm	26	0
2017	37.5 °C2 August 2017	2.4 °C18 January 2017	17.9 °C	539 mm	51	0
2016	33.6 °C21 July 2016	4.6 °C5 February 2016	17.8 °C	625 mm	33	0
2015	36.1 °C29 July 2015	2.9 °C2 January 2015	17.6 °C	458 mm	54	0
2014	36.4 °C18 July 2014	3.4 °C3 February 2014	17.7 °C	649 mm	29	0
2013	33.1 °C6 August 2013	1.7 °C27 February 2013	16.8 °C	844 mm	20	0
2012	36.9 °C17 August 2012	-3.1 °C5 February 2012	17.3 °C	681 mm	53	3
2011	34.9 °C18 August 2011	2.1 °C22 January 2011	17.4 °C	660 mm	32	0
2010	34.2 °C9 July 2010	0.9 °C17 December 2010	17.1 °C	666 mm	29	0
2009	37.8 °C22 July 2009	2.7 °C16 February 2009	17.3 °C	645 mm	44	0
2008	36.6 °C4 September 2008	2.9 °C26 January 2008	17.0 °C	623 mm	38	0
2007	36.2 °C2 August 2007	3.0 °C22 March 2007	16.8 °C	725 mm	34	0
2006	33.9 °C27 July 2006	2.5 °C14 January 2006	17.5 °C	545 mm	35	0
2005	34.8 °C9 August 2005	-5.1 °C27 January 2005	16.4 °C	519 mm	31	4
2004	36.1 °C24 August 2004	0.1 °C4 March 2004	16.8 °C	610 mm	39	0
2003	37.0 °C23 August 2003	1.2 °C2 February 2003	17.6 °C	854 mm	64	0
2002	35.5 °C27 June 2002	4.3 °C13 January 2002	17.3 °C	463 mm	21	0
2001	35.7 °C1 August 2001	3.9 °C9 January 2001	17.4 °C	492 mm	34	0
2000	36.3 °C20 August 2000	2.4 °C1 January 2000	17.3 °C	284 mm	45	0
1999	37.0 °C25 August 1999	0.2 °C3 February 1999	17.3 °C	644 mm	45	0
1998	35.0 °C1 September 1998	3.2 °C23 January 1998	16.8 °C	592 mm	29	0
1997	35.5 °C14 July 1997	4.7 °C13 March 1997	17.4 °C	499 mm	22	0
1996	34.9 °C25 July 1996	3.0 °C22 February 1996	16.4 °C	719 mm	18	0
1995	37.1 °C10 August 1995	2.9 °C1 April 1995	17.1 °C	511 mm	28	0
1994	37.2 °C21 August 1994	3.2 °C6 February 1994	17.4 °C	471 mm	54	0
1993	34.7 °C9 July 1993	2.7 °C2 January 1993	16.2 °C	518 mm	24	0
1992	33.6 °C20 July 1992	2.6 °C1 January 1992	16.0 °C	755 mm	20	0
1991	34.0 °C7 August 1991	0.3 °C15 January 1991	16.1 °C	589 mm	47	0
1990	34.1 °C9 September 1990	3.7 °C16 December 1990	17.2 °C	519 mm	39	0
1989	36.4 °C22 July 1989	2.6 °C1 January 1989	17.3 °C	433 mm	38	0
1988	37.2 °C2 August 1988	0.7 °C28 February 1988	16.9 °C	613 mm	31	0
1987	37.7 °C13 August 1987	0.2 °C19 January 1987	17.2 °C	535 mm	35	0
1986	36.7 °C23 July 1986	1.4 °C24 December 1986	16.6 °C	665 mm	43	0
1985	37.6 °C5 August 1985	-0.1 °C16 January 1985	16.6 °C	669 mm	26	1
1984	34.1 °C10 July 1984	2.2 °C17 February 1984	15.8 °C	762 mm	18	0
1983	34.2 °C30 July 1983	1.5 °C11 February 1983	16.7 °C	303 mm	22	0
1982	34.9 °C5 July 1982	0.9 °C25 December 1982	16.4 °C	918 mm	26	0
1981	33.2 °C31 July 1981	1.7 °C13 January 1981	16.4 °C	501 mm	10	0
1980	36.0 °C2 August 1980	1.2 °C30 November 1980	15.9 °C	780 mm	16	0
1979	34.3 °C5 August 1979	1.1 °C23 December 1979	16.0 °C	758 mm	18	0
1978	34.6 °C17 July 1978	1.0 °C14 January 1978	15.8 °C	722 mm	16	0
1977	31.7 °C15 August 1977	1.6 °C31 March 1977	16.1 °C	473 mm	5	0
1976	33.7 °C15 August 1976	0.9 °C27 January 1976	15.4 °C	937 mm	12	0
1975	34.3 °C15 July 1975	2.6 °C21 January 1975	15.7 °C	758 mm	27	0
1974	32.8 °C14 July 1974	1.9 °C6 March 1974	15.7 °C	865 mm	9	0
1973	34.1 °C15 September 1973	1.5 °C19 February 1973	15.7 °C	924 mm	18	0
1972	34.0 °C13 August 1972	3.8 °C15 February 1972	15.5 °C	1,169 mm	4	0
1971	37.1 °C14 August 1971	-2.4 °C3 January 1971	16.0 °C	834 mm	27	2
1970	35.7 °C7 August 1970	2.0 °C28 February 1970	16.3 °C	552 mm	22	0
1969	36.6 °C13 August 1969	1.8 °C12 February 1969	15.9 °C	1,169 mm	13	0
1968	37.9 °C9 July 1968	2.6 °C5 February 1968	16.6 °C	626 mm	16	0
1967	36.6 °C22 July 1967	1.4 °C18 December 1967	16.5 °C	726 mm	27	0
1966	33.0 °C11 August 1966	2.8 °C17 March 1966	16.3 °C	658 mm	12	0
1965	33.4 °C30 July 1965	-0.2 °C11 February 1965	16.2 °C	662 mm	15	1
1964	33.8 °C21 August 1964	1.8 °C11 February 1964	16.3 °C	633 mm	24	0
1963	34.4 °C13 August 1963	0.2 °C30 January 1963	16.0 °C	689 mm	21	0
1962	33.1 °C20 July 1962	1.0 °C1 February 1962	16.1 °C	711 mm	22	0
1961	33.9 °C12 July 1961	3.3 °C21 December 1961	16.9 °C	487 mm	20	0
1960	34.5 °C29 July 1960	0.1 °C17 January 1960	16.2 °C	694 mm	15	0
1959	34.6 °C22 September 1959	2.3 °C18 January 1959	16.3 °C	652 mm	15	0
1958	39.4 °C28 August 1958	2.0 °C27 February 1958	16.5 °C	589 mm	25	0
1957	33.9 °C8 August 1957	1.1 °C18 January 1957	15.9 °C	913 mm	14	0
1956	37.5 °C7 August 1956	-2.7 °C13 February 1956	15.4 °C	597 mm	38	8
1955	36.0 °C17 July 1955	2.0 °C11 March 1955	16.8 °C	653 mm	34	0
1954	36.8 °C20 August 1954	-1.7 °C13 January 1954	15.7 °C	731 mm	27	2
1953	34.0 °C25 July 1953	-0.6 °C5 January 1953	15.8 °C	576 mm	26	1
1952	35.6 °C28 August 1952	1.3 °C6 February 1952	16.7 °C	589 mm	30	0
1951	33.7 °C13 August 1951	2.5 °C5 January 1951	16.0 °C	762 mm	30	0
1950	34.4 °C23 August 1950	1.3 °C30 December 1950	16.5 °C	638 mm	42	0
1949	35.2 °C11 July 1949	-0.3 °C5 February 1949	16.3 °C	682 mm	36	1
1948	34.2 °C17 August 1948	3.2 °C21 January 1948	16.2 °C	544 mm	29	0
1947	35.8 °C20 August 1947	2.7 °C4 January 1947	17.3 °C	615 mm	50	0
1946	34.8 °C12 August 1946	2.3 °C22 December 1946	16.5 °C	791 mm	48	0
1945	37.9 °C8 September 1945	-2.2 °C4 January 1945	17.1 °C	379 mm	55	4
1944	36.5 °C31 August 1944	0.8 °C13 February 1944	16.0 °C	477 mm	47	0
1943	35.2 °C19 September 1943	3.0 °C17 February 1943	16.1 °C	757 mm	34	0
1942	33.6 °C31 July 1942	-2.3 °C12 January 1942	16.2 °C	678 mm	38	4
1941	35.0 °C25 August 1941	-1.5 °C6 February 1941	15.9 °C	530 mm	41	2
1940	34.9 °C26 July 1940	-3.3 °C30 December 1940	15.7 °C	574 mm	27	5

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

22.6 °C

+2.0 °C

Hot days (≥ 30 °C)

56 d/yr

+24

Frost days (< 0 °C)

0 d/yr

Annual rainfall

549 mm

-91 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	15.1 °C	+2.0 °C	112 mm	+27 mm
Feb	15.9 °C	+2.0 °C	51 mm	-22 mm
Mar	17.8 °C	+2.0 °C	47 mm	-27 mm
Apr	20.7 °C	+2.8 °C	61 mm	-12 mm
May	22.7 °C	+1.4 °C	77 mm	+24 mm
Jun	29.9 °C	+4.5 °C	1 mm	-15 mm
Jul	30.3 °C	+1.2 °C	7 mm	+4 mm
Aug	31.0 °C	+1.3 °C	2 mm	-7 mm
Sep	28.3 °C	+1.6 °C	50 mm	+19 mm
Oct	24.6 °C	+2.2 °C	21 mm	-40 mm
Nov	19.0 °C	+1.5 °C	54 mm	-20 mm
Dec	15.2 °C	+1.1 °C	66 mm	-21 mm

The year's extremes

Hottest day

35.5 °C

25 Aug 2025

Coldest day

6.3 °C

23 Nov 2025

Wettest day

45.6 mm

18 Jan 2025

Windiest day

33.7 km/h

28 Jan 2025

Strongest gust

69.8 km/h

16 Apr 2025

Hottest feels-like

38.1 °C

25 Aug 2025

Coldest feels-like

3.0 °C

23 Nov 2025

Sunniest day

14.0 h

2 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 Blida?

Blida has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.7 °C and it receives 640 mm of precipitation per year.

What is the hottest day ever recorded in Blida?

The hottest day measured in Blida between 1940 and 2025 was 23 July 2023, reaching 40.0 °C.

What is the coldest day in Blida?

The coldest day measured in Blida between 1940 and 2025 was 27 January 2005, at -5.1 °C.

Does it snow in Blida?

Yes. Blida gets on average 6.1 cm of snow per year and has around 0 frost days.

Has the climate of Blida warmed?

Yes: Blida warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Blida?

The wettest day measured in Blida between 1940 and 2025 was 10 October 1984, with 106 mm of rain in 24 hours.

What was the windiest day in Blida?

The windiest day measured in Blida between 1940 and 2025 was 10 January 1987, with winds reaching 48.3 km/h.

What is the warmest month in Blida?

The warmest month in Blida is August (25.2 °C on average); the coldest is January (9.7 °C).

How much does it rain in Blida?

Blida receives on average 640 mm of precipitation per year, spread over about 92 rainy days.

Is it sunny in Blida?

Blida gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.

What is the biggest single-day snowfall in Blida?

The heaviest 24-hour snowfall measured in Blida between 1940 and 2025 was 10 January 1945, with 9.2 cm.

Are there tropical nights in Blida?

Yes: Blida has on average 53 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Blida?

In Blida, between 1940 and 2025, the highest apparent temperature reached 41.5 °C on 18 July 2023, and the lowest was -8.8 °C on 27 January 2005.

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