Mostaganem weather in December

In December, Mostaganem sees average daytime highs of 16°C and overnight lows near 13°C, with 46 mm of rain across 7 wet days and about 9.6 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 16°C through the month. The sky is clear or mostly clear about 47% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of December to 9 h 36 min by month's end. Set against the rest of the year, December is Mostaganem's 11th-clearest and 7th-windiest month. For the whole year in context, see Mostaganem's year-round climate.

Daytime high
16°
10th warmest
Overnight low
13°
4th coldest
Rainfall
46 mm
7 wet days
Daylight
9 h 36 min
8:09 AM – 5:43 PM
Cloud cover
45%
11th clearest
Wind
14 km/h
7th windiest
Solar energy
2.48 kWh/m²
Travel score
5.8
out of 10

Mostaganem is city in Mostaganem Province, Algeria.

Density
3,258/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 16°C through the month.

A typical December day in Mostaganem reaches about 16°C in the afternoon and slips back to 13°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 18°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11714
21714
31714
41714
51714
61714
71713
81713
91713
101713
111713
121713
131613
141613
151613
161613
171613
181613
191613
201613
211613
221613
231613
241613
251613
261613
271612
281612
291612
301612
311612

Mostaganem weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan15° / 12°5089.85.1
Feb15° / 12°426.810.65.3
Mar17° / 13°426.311.76.1
Apr18° / 15°36612.96.9
May21° / 17°233.613.97.8
Jun24° / 21°40.914.49.1
Jul27° / 23°0014.29.0
Aug28° / 24°20.413.48.5
Sep26° / 22°142.812.28.3
Oct23° / 19°315.211.17.9
Nov19° / 16°688.510.16.5
Dec16° / 13°4679.65.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26535
36535
46634
56634
66634
76535
86535
96535
106535
116535
126634
136634
146634
156634
166733
176733
186634
196634
206733
216733
226733
236832
246931
256931
266931
277030
287129
297129
307129
317129

Chance of precipitation in December

Any precipitation

Mostaganem gets around 46 mm of rain over 7 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 23% and peaks near 30% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
130
229
328
427
526
626
725
824
924
1023
1123
1222
1322
1422
1522
1622
1722
1822
1922
2022
2122
2222
2321
2421
2521
2621
2720
2820
2920
3020
3120

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
17426
27525
37624
47723
57822
67921
78020
88119
98218
108317
118317
128416
138416
148515
158515
168614
178713
188713
198812
208911
218911
229010
239010
24919
25919
26928
27928
28928
29937
30937
31937

Wind in December

Winds average 14 km/h in December.

Across December, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 42 min at the start of December to 9 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:57 AM to 8:15 AM, and sunset from 5:42 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:575:42
29.77:585:41
39.77:595:41
49.78:005:41
59.78:015:41
69.78:015:41
79.78:025:41
89.68:035:41
99.68:045:42
109.68:055:42
119.68:055:42
129.68:065:42
139.68:075:42
149.68:075:42
159.68:085:43
169.68:095:43
179.68:095:43
189.68:105:44
199.68:105:44
209.68:115:44
219.68:115:45
229.68:125:45
239.68:125:46
249.68:135:46
259.68:135:47
269.68:145:47
279.68:145:48
289.68:145:49
299.68:155:49
309.68:155:50
319.68:155:51

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.48 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.48 kWh/m² to a high of 7.6 kWh/m² in June across the year — December's 2.48 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.5Moderate
102.5Moderate
112.5Moderate
122.5Moderate
132.5Moderate
142.5Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.5Moderate
292.5Moderate
302.6Moderate
312.6Moderate
Planning a trip in December

Hazard calendar for Mostaganem

In seasonPeak

None of Mostaganem's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Mostaganem sees seasonal dust haze (July–August), heaviest in July.

Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Mostaganem?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.8
Sightseeing
10th-best month of the year
1.0
Beach & pool
10th-best month of the year

December is a reasonable time to visit Mostaganem for sightseeing.

What to pack for Mostaganem in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Mostaganem sees daytime highs around 16°C and nights near 13°C. Worth packing: a warm layer. About 7 days see rain.

a warm layer

Sea temperature near Mostaganem in December

The nearest coast averages about 17°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 20 km away) is warmest in August at about 25°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 7 to Nov 1 — about 4.9 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar16Cool
Apr17Cool
May18Cool
Jun21Refreshing
Jul23Refreshing
Aug25Warm
Sep24Refreshing
Oct21Refreshing
Nov19Cool
Dec17Cool

UV index in Mostaganem in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mostaganem peaks around July 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 18UV 9Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb3Moderate
Mar7High
Apr6High
May8Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Mostaganem in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Mostaganem is worst in March — around 26 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (June, 16 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1625 µg/m³Jun 916 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb21Moderate
Mar26Moderate
Apr20Moderate
May16Moderate
Jun16Moderate
Jul19Moderate
Aug19Moderate
Sep22Moderate
Oct20Moderate
Nov17Moderate
Dec18Moderate
Location & terrain

Where is Mostaganem?

Mostaganem sits at 35.9°N, 0.1°E, 102 m above sea level, in Algeria. The nearest listed city is Arzew, 38 km away.

Topography around Mostaganem

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mostaganem.

Within 3 km, the terrain around Mostaganem has only modest variations in elevation — a maximum elevation change of 197 m around an average of 85 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 401 m; within 80 km, large variations in elevation — a maximum elevation change of 1,012 m.

The land around Mostaganem is covered by artificial surfaces (45%) and water (25%) within 3 km, water (43%) and cropland (31%) within 16 km, and cropland (33%), water (32%) and grassland (24%) within 80 km.

3 km
197 m
16 km
401 m
80 km
1,012 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Arzew 38 km · Aïn el Bya 38 km · Mohammadia 38 km · Relizane 47 km · Gdyel 49 km · Sig 52 km · Assi Bou Nif 59 km · Mascara 60 km

Algeria travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$6,051
2025
Happiness
5.7 / 10
World Happiness, 2025
Safe drinking water
69%
of population, 2024
Homicide rate
1.2
per 100k, 2023
Road deaths
20.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 468
Religion
Muslim 99%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Mostaganem (35.9312°, 0.0892°, elevation 102 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).