Zeralda weather in May

In May, Zeralda sees average daytime highs of 20°C and overnight lows near 17°C, with 38 mm of rain across 4.8 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 18°C in the first days to 21°C by the end. The sky is clear or mostly clear about 56% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 18 min by month's end. Set against the rest of the year, May is Zeralda's 5th-clearest and 7th-windiest month. For the whole year in context, see Zeralda's year-round climate.

Daytime high
20°
6th warmest
Overnight low
17°
7th coldest
Rainfall
38 mm
4.8 wet days
Daylight
14 hours
5:46 AM – 7:43 PM
Cloud cover
39%
5th clearest
Wind
15 km/h
7th windiest
Solar energy
6.84 kWh/m²
Travel score
7.4
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 18°C in the first days to 21°C by the end.

A typical May day in Zeralda reaches about 20°C in the afternoon and slips back to 17°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 22°C. Set against its neighbours, May runs about 2°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11816
21816
31816
41916
51916
61916
71916
81916
91916
101916
111917
121917
131917
141917
152017
162017
172017
182017
192017
202017
212017
222018
232018
242018
252018
262118
272118
282118
292118
302118
312118

Zeralda 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°8810.59.84.6
Feb15° / 12°689.410.64.6
Mar16° / 13°577.711.75.4
Apr17° / 15°557.712.96.2
May20° / 17°384.813.97.4
Jun23° / 20°61.114.58.9
Jul25° / 23°10.114.39.3
Aug26° / 24°51.113.48.8
Sep25° / 22°224.512.28.2
Oct22° / 19°536.511.17.5
Nov18° / 16°9611.4106.0
Dec16° / 13°8310.39.55.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16931
27030
37030
47030
57030
67030
77129
87129
97129
107030
117030
127129
137129
147129
157129
167129
177228
187228
197129
207228
217228
227228
237228
247228
257228
267228
277228
287228
297327
307327
317525

Chance of precipitation in May

Any precipitation

Zeralda gets around 38 mm of rain over 4.8 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 15% and peaks near 22% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
122
222
321
421
520
620
719
818
918
1017
1117
1216
1315
1415
1515
1615
1714
1814
1914
2014
2114
2214
2313
2413
2512
2612
2712
2811
2911
3010
3110

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 40% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13253150
23152170
33051190
42950210
52850220
62749240
72648260
82548280
92347290
102247311
112146321
122046331
131945351
141844361
151744381
161743391
171642412
181541432
191439452
201338462
211237483
221136503
231034524
24933535
25831556
26730567
27628588
28527599
295255911
304245913
313236014

Wind in May

Winds average 15 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
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light 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 30 min at the start of May to 14 h 18 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 6:01 AM to 5:37 AM, and sunset from 7:30 PM to 7:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.56:017:30
213.56:007:31
313.65:597:32
413.65:587:33
513.65:577:34
613.65:567:35
713.75:557:36
813.75:547:37
913.75:537:37
1013.85:527:38
1113.85:517:39
1213.85:507:40
1313.95:497:41
1413.95:487:42
1513.95:477:43
1614.05:467:43
1714.05:467:44
1814.05:457:45
1914.05:447:46
2014.15:437:47
2114.15:437:48
2214.15:427:48
2314.15:417:49
2414.25:417:50
2514.25:407:51
2614.25:397:51
2714.25:397:52
2814.25:387:53
2914.35:387:54
3014.35:377:54
3114.35:377:55

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.84 kWh/m².

For context, solar energy here swings from a low near 2.32 kWh/m² to a high of 7.48 kWh/m² in June across the year — May's 6.84 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.6Intense
46.6Intense
56.6Intense
66.6Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.9Intense
176.9Intense
186.9Intense
196.9Intense
206.9Intense
216.9Intense
227.0Intense
237.0Intense
247.0Intense
257.0Intense
267.0Intense
277.1Intense
287.1Intense
297.1Intense
307.1Intense
317.2Intense
Planning a trip in May

Hazard calendar for Zeralda

In seasonPeak

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

Zeralda's rainy season runs October–April, when most of the year's rain falls.

Zeralda sees seasonal dust haze (June–July), heaviest in July.

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

Is May a good time to visit Zeralda?

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

7.4
Sightseeing
6th-best month of the year
3.6
Beach & pool
6th-best month of the year

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

What to pack for Zeralda in May

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

In May, Zeralda sees daytime highs around 20°C and nights near 17°C. Pack sun protection. About 5 days see rain.

sun protection

Sea temperature near Zeralda 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 18 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 6 to Nov 5 — about 5 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr16Cool
May18Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep24Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Zeralda in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Zeralda peaks around July 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 18UV 9Dec 21UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Zeralda 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 Zeralda is worst in July — around 67 µg/m³ PM2.5 (unhealthy), about 1.7× the cleanest month (November, 40 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorJul 1966 µg/m³Nov 1841 µg/m³
PM2.5 (µg/m³)Level
Jan43Poor
Feb51Poor
Mar59Unhealthy
Apr58Unhealthy
May56Unhealthy
Jun55Poor
Jul67Unhealthy
Aug61Unhealthy
Sep48Poor
Oct52Poor
Nov40Poor
Dec47Poor
Location & terrain

Where is Zeralda?

Zeralda sits at 36.7°N, 2.8°E, 30 m above sea level, in Algeria. The nearest listed city is Douéra, 10 km away.

Topography around Zeralda

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

Within 3 km, the terrain around Zeralda has only modest variations in elevation — a maximum elevation change of 135 m around an average of 46 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 302 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,615 m.

The land around Zeralda is covered by trees (22%) and artificial surfaces (22%) within 3 km, water (40%) within 16 km, and water (36%) and grassland (21%) within 80 km.

3 km
135 m
16 km
302 m
80 km
1,615 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Douéra 10 km · Kolea 10 km · Cheraga 12 km · ’Aïn Benian 12 km · Bou Ismaïl 16 km · Saoula 16 km · Boufarik 17 km · Oued el Alleug 18 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 Zeralda (36.7117°, 2.8424°, elevation 30 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).