Mostaganem weather in May

In May, Mostaganem sees average daytime highs of 21°C and overnight lows near 17°C, with 23 mm of rain across 3.6 wet days and about 13.9 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 22°C by the end. The sky is clear or mostly clear about 59% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 13 h 24 min at the start of May to 14 h 12 min by month's end. Set against the rest of the year, May is Mostaganem's 5th-clearest and 6th-windiest month. For the whole year in context, see Mostaganem's year-round climate.

Daytime high
21°
6th warmest
Overnight low
17°
7th coldest
Rainfall
23 mm
3.6 wet days
Daylight
13 h 54 min
5:59 AM – 7:53 PM
Cloud cover
37%
5th clearest
Wind
14 km/h
6th windiest
Solar energy
7.05 kWh/m²
Travel score
7.8
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 May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 22°C by the end.

A typical May day in Mostaganem reaches about 21°C in the afternoon and slips back to 17°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 23°C. Set against its neighbours, May runs about 3°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12016
22016
32016
42016
52016
62016
72016
82017
92017
102017
112117
122117
132117
142117
152117
162117
172117
182118
192118
202118
212118
222218
232218
242218
252218
262218
272219
282219
292219
302219
312319

Mostaganem weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 8th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 26%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27525
37525
47525
57624
67624
77624
87426
97426
107426
117426
127426
137426
147327
157327
167327
177327
187327
197327
207228
217228
227228
237228
247327
257426
267426
277426
287525
297624
307624
317723

Chance of precipitation in May

Any precipitation

Mostaganem gets around 23 mm of rain over 3.6 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 12% and peaks near 18% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
118
218
317
417
516
616
715
815
915
1014
1114
1213
1313
1412
1512
1612
1711
1811
1911
2010
2110
229
239
248
258
267
277
287
296
306
315

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the comfortable band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13351160
23250180
33050200
42949220
52849230
62649250
72548260
82448281
92248291
102148301
112048311
121948321
131847332
141747342
151647352
161546362
171446373
181345383
191245394
201144405
211043415
22942426
23841437
24839449
257384510
266364611
275354713
284344814
294324816
303314917
313304919

Wind in May

Winds average 14 km/h in May.

Across May, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light 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 May

DaylightNight

Daylight runs from about 13 h 24 min at the start of May to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 6:14 AM to 5:50 AM, and sunset from 7:40 PM to 8:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:147:40
213.56:137:41
313.56:117:42
413.56:107:43
513.66:097:43
613.66:087:44
713.66:077:45
813.76:067:46
913.76:057:47
1013.76:047:48
1113.86:037:49
1213.86:027:49
1313.86:027:50
1413.86:017:51
1513.96:007:52
1613.95:597:53
1713.95:587:54
1813.95:577:54
1914.05:577:55
2014.05:567:56
2114.05:557:57
2214.05:557:58
2314.15:547:58
2414.15:537:59
2514.15:538:00
2614.15:528:01
2714.25:528:01
2814.25:518:02
2914.25:518:03
3014.25:508:03
3114.25:508:04

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.05 kWh/m².

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 — May's 7.05 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.8Intense
46.8Intense
56.8Intense
66.8Intense
76.9Intense
86.9Intense
96.9Intense
106.9Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.0Intense
167.1Intense
177.1Intense
187.1Intense
197.1Intense
207.1Intense
217.2Intense
227.2Intense
237.2Intense
247.2Intense
257.2Intense
267.3Intense
277.3Intense
287.3Intense
297.3Intense
307.3Intense
317.3Intense
Planning a trip in May

Hazard calendar for Mostaganem

In seasonPeak

None of Mostaganem's seasonal hazards are active in May. 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 May a good time to visit Mostaganem?

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

7.8
Sightseeing
6th-best month of the year
4.8
Beach & pool
6th-best month of the year

May is one of the better times to visit Mostaganem for general sightseeing.

What to pack for Mostaganem in May

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

In May, Mostaganem sees daytime highs around 21°C and nights near 17°C. Pack sun protection. About 4 days see rain.

sun protection

Sea temperature near Mostaganem in May

The nearest coast averages about 18°C in May — 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 May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). 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 May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May 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
May 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).