Bir el Ater weather in May

In May, Bir el Ater sees average daytime highs of 26°C and overnight lows near 15°C, with 19 mm of rain across 4 wet days and about 13.8 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 28°C by the end. The sky is clear or mostly clear about 57% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 24 min at the start of May to 14 h 06 min by month's end. Set against the rest of the year, May is Bir el Ater's 8th-clearest and 3rd-windiest month. For the whole year in context, see Bir el Ater's year-round climate.

Daytime high
26°
5th warmest
Overnight low
15°
8th coldest
Rainfall
19 mm
4 wet days
Daylight
13 h 48 min
5:30 AM – 7:18 PM
Cloud cover
38%
8th clearest
Wind
13 km/h
3rd windiest
Solar energy
7.26 kWh/m²
Travel score
7.9
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 28°C by the end.

A typical May day in Bir el Ater reaches about 26°C in the afternoon and slips back to 15°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 31°C. Set against its neighbours, May runs about 6°C warmer than April and about 5°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12312
22412
32413
42413
52413
62413
72513
82513
92514
102514
112514
122614
132614
142614
152614
162615
172615
182615
192615
202715
212715
222715
232716
242716
252716
262816
272816
282816
292816
302817
312817

How May really feels in Bir el Ater

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Bir el Ater weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan11° / 173.79.93.5
Feb13° / 132.910.74.4
Mar17° / 254.611.76.2
Apr21° / 10°254.412.87.6
May26° / 15°19413.87.9
Jun31° / 19°92.614.35.5
Jul34° / 22°51.514.13.7
Aug34° / 22°102.913.34.1
Sep29° / 18°244.712.26.8
Oct23° / 13°234.311.18.0
Nov17° / 213.810.26.3
Dec12° / 153.29.74.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 24%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17723
27723
37723
47723
57822
67921
77921
87822
97822
107822
117723
127723
137624
147624
157525
167525
177426
187327
197327
207327
217327
227327
237327
247327
257327
267327
277426
287525
297525
307624
317624

Chance of precipitation in May

Any precipitation

Bir el Ater gets around 19 mm of rain over 4 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 13% and peaks near 15% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
115
215
315
414
514
614
713
813
913
1013
1113
1213
1313
1413
1513
1613
1713
1813
1913
2013
2113
2213
2313
2412
2512
2612
2711
2811
2911
3010
3110

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11982
12982
13982
14982
15982
16982
17982
18982
19973
20973
21973
22973
23973
24964
25964
26964
27964
28955
29955
30955
31955

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 13 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
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 24 min at the start of May to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 5:44 AM to 5:21 AM, and sunset from 7:06 PM to 7:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:447:06
213.45:437:07
313.45:417:08
413.55:407:09
513.55:397:10
613.55:387:10
713.65:377:11
813.65:367:12
913.65:367:13
1013.65:357:14
1113.75:347:14
1213.75:337:15
1313.75:327:16
1413.85:317:17
1513.85:307:18
1613.85:307:18
1713.85:297:19
1813.95:287:20
1913.95:277:21
2013.95:277:21
2113.95:267:22
2214.05:257:23
2314.05:257:24
2414.05:247:24
2514.05:247:25
2614.05:237:26
2714.15:237:27
2814.15:227:27
2914.15:227:28
3014.15:217:29
3114.15:217:29

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.26 kWh/m².

For context, solar energy here swings from a low near 2.87 kWh/m² to a high of 7.67 kWh/m² in July across the year — May's 7.26 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.1Intense
27.1Intense
37.1Intense
47.1Intense
57.2Intense
67.2Intense
77.2Intense
87.2Intense
97.2Intense
107.2Intense
117.2Intense
127.2Intense
137.3Intense
147.3Intense
157.3Intense
167.3Intense
177.3Intense
187.3Intense
197.3Intense
207.3Intense
217.3Intense
227.3Intense
237.3Intense
247.3Intense
257.3Intense
267.3Intense
277.3Intense
287.3Intense
297.4Intense
307.4Intense
317.4Intense
Planning a trip in May

Hazard calendar for Bir el Ater

In seasonPeak

In May, Bir el Ater sits inside its dust season. The full year is below, with each hazard's peak months called out.

Bir el Ater sees seasonal dust haze (April–September), heaviest in June.

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

Is May a good time to visit Bir el Ater?

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

7.9
Sightseeing
2nd-best month of the year
7.6
Beach & pool
5th-best month of the year

May is one of the better times to visit Bir el Ater for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Bir el Ater in May

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

In May, Bir el Ater sees daytime highs around 26°C and nights near 15°C. Pack sun protection. Worth having: light clothes. About 4 days see rain.

sun protectionlight clothes

UV index in Bir el Ater in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bir el Ater peaks around July 15 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 15UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr6High
May7Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Bir el Ater 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 Bir el Ater is worst in April — around 32 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 2131 µg/m³Dec 1722 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb22Moderate
Mar26Moderate
Apr32Moderate
May30Moderate
Jun31Moderate
Jul27Moderate
Aug27Moderate
Sep27Moderate
Oct27Moderate
Nov24Moderate
Dec22Moderate
Location & terrain

Where is Bir el Ater?

Bir el Ater sits at 34.7°N, 8.1°E, 889 m above sea level, in Algeria. The nearest listed city is Moularès, 34 km away.

Topography around Bir el Ater

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

Within 3 km, the terrain around Bir el Ater has only modest variations in elevation — a maximum elevation change of 177 m around an average of 883 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 731 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,731 m.

The land around Bir el Ater is covered by bare terrain (49%) and artificial surfaces (34%) within 3 km, bare terrain (62%) and grassland (32%) within 16 km, and bare terrain (56%) and grassland (27%) within 80 km.

3 km
177 m
16 km
731 m
80 km
1,731 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Moularès 34 km · Ar Rudayyif 41 km · Feriana 51 km · Metlaoui 57 km · Cheria 65 km · Tébessa 74 km · Gafsa 75 km · El Ksar 78 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 Bir el Ater (34.7449°, 8.0602°, elevation 889 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. 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).