Mostaganem climate

Name: Mostaganem
Address: DZ

Mostaganem is warmest in August, with average highs of 32 °C, and coldest in January, when nights average 7.5 °C. November is the wettest month (71 mm) and July the driest (0.8 mm). Figures are 1991–2020 climate normals.

Across a full year Mostaganem averages 402 mm of rain, 144 days above 25 °C and 0 days below freezing.

Algeria · population 162,885 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month August 32 °C
Coldest month January 7.5 °C
Driest month July 1 mm
Wettest month November 71 mm
Least cloud July 18 % cloud
Hottest on record July 45 °C
Coldest on record January -0.2 °C
Warmest sea August 25 °C

What to expectMostaganem through the year

Mostaganem has a clear annual cycle: average daily highs run from 15 °C in January to 32 °C in August, a swing of 16 °C in mean temperature across the year.

Counted across a normal year, 144 days a year reach 25 °C, 65 of them reach 30 °C, 0 nights drop below freezing. The warmest reading in the 1991–2020 record is 45 °C, in July.

Rain is strongly seasonal. November averages 71 mm against 1 mm in July — 90 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Mostaganem is warmest in August at 25 °C and coldest in February at 15 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	15.3 °C	56 mm	45 %
February	16.0 °C	47 mm	42 %
March	18.4 °C	46 mm	44 %
April	20.5 °C	42 mm	42 %
May	23.8 °C	26 mm	40 %
June	27.9 °C	6 mm	27 %
July	31.2 °C	1 mm	18 %
August	31.9 °C	4 mm	22 %
September	28.5 °C	17 mm	37 %
October	24.7 °C	36 mm	43 %
November	19.4 °C	71 mm	48 %
December	16.3 °C	50 mm	47 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	15.3 °C	7.5 °C	11.1 °C	24.4 °C	-0.2 °C	0	0
February	16.0 °C	7.9 °C	11.7 °C	28.4 °C	0.8 °C	0	0
March	18.4 °C	9.6 °C	13.8 °C	31.9 °C	2.2 °C	1	0
April	20.5 °C	11.8 °C	16.0 °C	32.5 °C	5.3 °C	2	0
May	23.8 °C	14.9 °C	19.2 °C	36.8 °C	7.0 °C	12	1
June	27.9 °C	18.5 °C	23.1 °C	40.0 °C	13.1 °C	24	8
July	31.2 °C	21.3 °C	26.0 °C	44.5 °C	16.1 °C	31	21
August	31.9 °C	22.2 °C	26.7 °C	41.8 °C	16.9 °C	31	25
September	28.5 °C	19.9 °C	23.8 °C	37.9 °C	13.5 °C	27	9
October	24.7 °C	16.4 °C	20.1 °C	36.7 °C	8.4 °C	15	2
November	19.4 °C	11.9 °C	15.4 °C	31.3 °C	4.4 °C	2	0
December	16.3 °C	9.0 °C	12.4 °C	25.8 °C	0.8 °C	0	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	56 mm	8	10.0 h/day	45 %	78 %	18 km/h	15.7 °C
February	47 mm	8	11 h/day	42 %	77 %	19 km/h	15.3 °C
March	46 mm	7	12 h/day	44 %	75 %	20 km/h	15.6 °C
April	42 mm	7	13 h/day	42 %	72 %	20 km/h	16.5 °C
May	26 mm	4	14 h/day	40 %	70 %	19 km/h	18.3 °C
June	6 mm	1	15 h/day	27 %	67 %	19 km/h	20.8 °C
July	1 mm	0	14 h/day	18 %	66 %	18 km/h	23.3 °C
August	4 mm	1	14 h/day	22 %	68 %	18 km/h	24.8 °C
September	17 mm	3	12 h/day	37 %	71 %	18 km/h	23.6 °C
October	36 mm	6	11 h/day	43 %	74 %	17 km/h	21.4 °C
November	71 mm	9	10 h/day	48 %	75 %	18 km/h	18.7 °C
December	50 mm	7	9.7 h/day	47 %	78 %	17 km/h	16.7 °C

How Mostaganem compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Mostaganem	32 °C	7.5 °C	402 mm	144
Oran · Algeria	31 °C	8.3 °C	340 mm	131
Sidi Bel Abbes · Algeria	35 °C	4.7 °C	392 mm	157
Chlef · Algeria	36 °C	5.2 °C	429 mm	172
Tiaret · Algeria	33 °C	1.3 °C	443 mm	125

Where Mostaganem ranks

Ranking	Position	Value
Best beach destinations in Africa in September	6thof 50	98/100
Best beach destinations in the world in September	9thof 50	98/100
The coolest places in Africa in April	24thof 50	21 °C
The coolest places in Africa in March	26thof 50	18 °C
The coolest places in Africa in November	27thof 50	19 °C
Places with the best weather in Africa in October	28thof 50	92/100

Planning a trip? See the best time to visit Mostaganem.

QuestionsCommon questions about Mostaganem’s climate

When is the best time to visit Mostaganem?

That depends on what you want, so the honest answer is a comparison rather than a single month. May, June, October sit closest to 20 °C on average, August is the warmest month and July the driest. The month-by-month table above has the full picture.

How hot does Mostaganem get?

In August, the warmest month, daily highs average 32 °C. About 65 days a year pass 30 °C. The highest value in the 1991–2020 record is 45 °C.

How cold does it get in winter?

Nights average 7.5 °C in January, the coldest month. A normal year has 0 nights below freezing.

Which month is wettest in Mostaganem?

November, averaging 71 mm over 9 days with rain. The driest month is July with 1 mm. The year as a whole averages 402 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Mostaganem rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.