Arzew weather in May
In May, Arzew sees average daytime highs of 23°C and overnight lows near 17°C, with 22 mm of rain across 3.8 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 22°C in the first days to 25°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 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 Arzew's 5th-clearest and 4th-windiest month. For the whole year in context, see Arzew's year-round climate.
- Daytime high
- 23°
- 6th warmest
- Overnight low
- 17°
- 7th coldest
- Rainfall
- 22 mm
- 3.8 wet days
- Daylight
- 13 h 54 min
- 6:01 AM – 7:54 PM
- Cloud cover
- 39%
- 5th clearest
- Wind
- 11 km/h
- 4th windiest
- Solar energy
- 7 kWh/m²
- Travel score
- 8.2
- out of 10
Arzew is municipality in Oran, Algeria.
- Density
- 909/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Highs climb over the month, from about 22°C in the first days to 25°C by the end.
A typical May day in Arzew reaches about 23°C in the afternoon and slips back to 17°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 26°C. Set against its neighbours, May runs about 3°C warmer than April and about 4°C cooler than June.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 |
| Avg low (°C) | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 21 | 15 |
| 2 | 22 | 15 |
| 3 | 22 | 15 |
| 4 | 22 | 15 |
| 5 | 22 | 15 |
| 6 | 22 | 15 |
| 7 | 22 | 16 |
| 8 | 22 | 16 |
| 9 | 22 | 16 |
| 10 | 23 | 16 |
| 11 | 23 | 16 |
| 12 | 23 | 16 |
| 13 | 23 | 16 |
| 14 | 23 | 16 |
| 15 | 23 | 16 |
| 16 | 23 | 17 |
| 17 | 23 | 17 |
| 18 | 23 | 17 |
| 19 | 23 | 17 |
| 20 | 24 | 17 |
| 21 | 24 | 17 |
| 22 | 24 | 17 |
| 23 | 24 | 17 |
| 24 | 24 | 17 |
| 25 | 24 | 18 |
| 26 | 24 | 18 |
| 27 | 24 | 18 |
| 28 | 25 | 18 |
| 29 | 25 | 18 |
| 30 | 25 | 18 |
| 31 | 25 | 18 |
How May really feels in Arzew
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.
May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Arzew 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.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 16° / 10° | 46 | 8.2 | 9.8 | 5.4 |
| Feb | 16° / 11° | 38 | 7.3 | 10.6 | 5.7 |
| Mar | 18° / 12° | 40 | 6.8 | 11.7 | 6.6 |
| Apr | 20° / 14° | 37 | 6 | 12.9 | 7.2 |
| May | 23° / 17° | 22 | 3.8 | 13.9 | 8.2 |
| Jun | 27° / 20° | 5 | 1.1 | 14.4 | 8.5 |
| Jul | 30° / 23° | 1 | 0.1 | 14.2 | 6.9 |
| Aug | 31° / 23° | 4 | 0.6 | 13.4 | 6.4 |
| Sep | 28° / 21° | 16 | 3.6 | 12.2 | 7.4 |
| Oct | 24° / 18° | 30 | 5.4 | 11.1 | 7.9 |
| Nov | 20° / 14° | 58 | 7.8 | 10.1 | 6.8 |
| Dec | 17° / 12° | 42 | 7 | 9.6 | 6.1 |
Cloud cover in May
The sky is clear or mostly clear about 56% 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 28%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 73 | 73 | 73 | 74 | 73 | 73 | 73 | 73 | 72 | 72 | 71 | 71 | 71 | 71 | 71 | 71 | 70 | 71 | 71 | 71 | 71 | 71 | 72 | 72 | 72 | 74 | 74 | 74 | 75 | 76 | 76 |
| Cloudier (%) | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 26 | 26 | 26 | 25 | 24 | 24 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 73 | 27 |
| 2 | 73 | 27 |
| 3 | 73 | 27 |
| 4 | 74 | 26 |
| 5 | 73 | 27 |
| 6 | 73 | 27 |
| 7 | 73 | 27 |
| 8 | 73 | 27 |
| 9 | 72 | 28 |
| 10 | 72 | 28 |
| 11 | 71 | 29 |
| 12 | 71 | 29 |
| 13 | 71 | 29 |
| 14 | 71 | 29 |
| 15 | 71 | 29 |
| 16 | 71 | 29 |
| 17 | 70 | 30 |
| 18 | 71 | 29 |
| 19 | 71 | 29 |
| 20 | 71 | 29 |
| 21 | 71 | 29 |
| 22 | 71 | 29 |
| 23 | 72 | 28 |
| 24 | 72 | 28 |
| 25 | 72 | 28 |
| 26 | 74 | 26 |
| 27 | 74 | 26 |
| 28 | 74 | 26 |
| 29 | 75 | 25 |
| 30 | 76 | 24 |
| 31 | 76 | 24 |
Chance of precipitation in May
Arzew gets around 22 mm of rain over 3.8 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 13% and peaks near 17% on the wettest days. The odds ease toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 10 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 |
| Rain chance (%) | |
|---|---|
| 1 | 17 |
| 2 | 17 |
| 3 | 17 |
| 4 | 16 |
| 5 | 16 |
| 6 | 16 |
| 7 | 16 |
| 8 | 16 |
| 9 | 15 |
| 10 | 15 |
| 11 | 15 |
| 12 | 15 |
| 13 | 15 |
| 14 | 14 |
| 15 | 14 |
| 16 | 14 |
| 17 | 13 |
| 18 | 13 |
| 19 | 12 |
| 20 | 12 |
| 21 | 11 |
| 22 | 10 |
| 23 | 10 |
| 24 | 9 |
| 25 | 9 |
| 26 | 8 |
| 27 | 8 |
| 28 | 7 |
| 29 | 7 |
| 30 | 6 |
| 31 | 6 |
Humidity in May
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 42% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 46 | 45 | 43 | 42 | 41 | 40 | 39 | 37 | 36 | 35 | 34 | 33 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 25 | 24 | 22 | 21 | 19 | 18 | 16 | 15 | 14 | 13 | 12 | 11 |
| Comfortable (%) | 43 | 43 | 44 | 44 | 44 | 44 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 44 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 42 | 42 | 42 | 41 | 41 | 40 | 39 | 38 | 38 | 37 |
| Humid (%) | 10 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 35 | 36 | 37 | 38 | 39 | 39 | 40 |
| Muggy (%) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 46 | 43 | 10 | 0 |
| 2 | 45 | 43 | 12 | 0 |
| 3 | 43 | 44 | 13 | 0 |
| 4 | 42 | 44 | 14 | 0 |
| 5 | 41 | 44 | 15 | 0 |
| 6 | 40 | 44 | 16 | 0 |
| 7 | 39 | 43 | 17 | 1 |
| 8 | 37 | 43 | 18 | 1 |
| 9 | 36 | 43 | 19 | 1 |
| 10 | 35 | 44 | 20 | 1 |
| 11 | 34 | 44 | 21 | 1 |
| 12 | 33 | 44 | 22 | 1 |
| 13 | 33 | 44 | 22 | 1 |
| 14 | 32 | 44 | 23 | 2 |
| 15 | 31 | 43 | 24 | 2 |
| 16 | 30 | 43 | 25 | 2 |
| 17 | 29 | 43 | 26 | 2 |
| 18 | 28 | 43 | 27 | 2 |
| 19 | 27 | 43 | 28 | 3 |
| 20 | 25 | 43 | 29 | 3 |
| 21 | 24 | 43 | 30 | 4 |
| 22 | 22 | 42 | 31 | 4 |
| 23 | 21 | 42 | 32 | 5 |
| 24 | 19 | 42 | 33 | 6 |
| 25 | 18 | 41 | 35 | 6 |
| 26 | 16 | 41 | 36 | 7 |
| 27 | 15 | 40 | 37 | 8 |
| 28 | 14 | 39 | 38 | 9 |
| 29 | 13 | 38 | 39 | 10 |
| 30 | 12 | 38 | 39 | 11 |
| 31 | 11 | 37 | 40 | 12 |
Wind in May
Winds average 11 km/h in May.
Across May, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 11 | calm |
| 8 | 11 | calm |
| 9 | 11 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 10 | calm |
| 22 | 10 | calm |
| 23 | 10 | calm |
| 24 | 10 | calm |
| 25 | 10 | calm |
| 26 | 10 | calm |
| 27 | 10 | calm |
| 28 | 10 | calm |
| 29 | 10 | calm |
| 30 | 10 | calm |
| 31 | 10 | calm |
Sunrise & sunset in May
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 6:15 AM to 5:52 AM, and sunset from 7:42 PM to 8:06 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.4 | 13.5 | 13.5 | 13.5 | 13.6 | 13.6 | 13.6 | 13.7 | 13.7 | 13.7 | 13.7 | 13.8 | 13.8 | 13.8 | 13.9 | 13.9 | 13.9 | 13.9 | 14.0 | 14.0 | 14.0 | 14.0 | 14.1 | 14.1 | 14.1 | 14.1 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 |
| Sunrise (AM) | 6:15 | 6:14 | 6:13 | 6:12 | 6:11 | 6:10 | 6:09 | 6:08 | 6:07 | 6:06 | 6:05 | 6:04 | 6:03 | 6:02 | 6:02 | 6:01 | 6:00 | 5:59 | 5:59 | 5:58 | 5:57 | 5:56 | 5:56 | 5:55 | 5:55 | 5:54 | 5:54 | 5:53 | 5:53 | 5:52 | 5:52 |
| Sunset (PM) | 7:42 | 7:42 | 7:43 | 7:44 | 7:45 | 7:46 | 7:47 | 7:48 | 7:48 | 7:49 | 7:50 | 7:51 | 7:52 | 7:53 | 7:53 | 7:54 | 7:55 | 7:56 | 7:57 | 7:57 | 7:58 | 7:59 | 8:00 | 8:01 | 8:01 | 8:02 | 8:03 | 8:03 | 8:04 | 8:05 | 8:06 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.4 | 6:15 | 7:42 |
| 2 | 13.5 | 6:14 | 7:42 |
| 3 | 13.5 | 6:13 | 7:43 |
| 4 | 13.5 | 6:12 | 7:44 |
| 5 | 13.6 | 6:11 | 7:45 |
| 6 | 13.6 | 6:10 | 7:46 |
| 7 | 13.6 | 6:09 | 7:47 |
| 8 | 13.7 | 6:08 | 7:48 |
| 9 | 13.7 | 6:07 | 7:48 |
| 10 | 13.7 | 6:06 | 7:49 |
| 11 | 13.7 | 6:05 | 7:50 |
| 12 | 13.8 | 6:04 | 7:51 |
| 13 | 13.8 | 6:03 | 7:52 |
| 14 | 13.8 | 6:02 | 7:53 |
| 15 | 13.9 | 6:02 | 7:53 |
| 16 | 13.9 | 6:01 | 7:54 |
| 17 | 13.9 | 6:00 | 7:55 |
| 18 | 13.9 | 5:59 | 7:56 |
| 19 | 14.0 | 5:59 | 7:57 |
| 20 | 14.0 | 5:58 | 7:57 |
| 21 | 14.0 | 5:57 | 7:58 |
| 22 | 14.0 | 5:56 | 7:59 |
| 23 | 14.1 | 5:56 | 8:00 |
| 24 | 14.1 | 5:55 | 8:01 |
| 25 | 14.1 | 5:55 | 8:01 |
| 26 | 14.1 | 5:54 | 8:02 |
| 27 | 14.2 | 5:54 | 8:03 |
| 28 | 14.2 | 5:53 | 8:03 |
| 29 | 14.2 | 5:53 | 8:04 |
| 30 | 14.2 | 5:52 | 8:05 |
| 31 | 14.2 | 5:52 | 8:06 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 7 kWh/m².
For context, solar energy here swings from a low near 2.49 kWh/m² to a high of 7.6 kWh/m² in June across the year — May's 7 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.6 | 6.7 | 6.7 | 6.7 | 6.7 | 6.8 | 6.8 | 6.8 | 6.8 | 6.9 | 6.9 | 6.9 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.2 | 7.2 | 7.2 | 7.2 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.6 | Intense |
| 2 | 6.7 | Intense |
| 3 | 6.7 | Intense |
| 4 | 6.7 | Intense |
| 5 | 6.7 | Intense |
| 6 | 6.8 | Intense |
| 7 | 6.8 | Intense |
| 8 | 6.8 | Intense |
| 9 | 6.8 | Intense |
| 10 | 6.9 | Intense |
| 11 | 6.9 | Intense |
| 12 | 6.9 | Intense |
| 13 | 7.0 | Intense |
| 14 | 7.0 | Intense |
| 15 | 7.0 | Intense |
| 16 | 7.0 | Intense |
| 17 | 7.0 | Intense |
| 18 | 7.1 | Intense |
| 19 | 7.1 | Intense |
| 20 | 7.1 | Intense |
| 21 | 7.1 | Intense |
| 22 | 7.1 | Intense |
| 23 | 7.2 | Intense |
| 24 | 7.2 | Intense |
| 25 | 7.2 | Intense |
| 26 | 7.2 | Intense |
| 27 | 7.3 | Intense |
| 28 | 7.3 | Intense |
| 29 | 7.3 | Intense |
| 30 | 7.3 | Intense |
| 31 | 7.3 | Intense |
Hazard calendar for Arzew
None of Arzew's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Arzew sees seasonal dust haze (July–August), heaviest in July.
Is May a good time to visit Arzew?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is one of the better times to visit Arzew for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Arzew in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Arzew sees daytime highs around 23°C and nights near 17°C. Pack sun protection. Worth having: light clothes. About 4 days see rain.
Sea temperature near Arzew 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 offshore 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 Oct 30 — about 4.8 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 16 | 15 | 16 | 17 | 18 | 21 | 23 | 25 | 24 | 21 | 19 | 17 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Refreshing | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 15 | Cool |
| Mar | 16 | Cool |
| Apr | 17 | Cool |
| May | 18 | Cool |
| Jun | 21 | Refreshing |
| Jul | 23 | Refreshing |
| Aug | 25 | Warm |
| Sep | 24 | Refreshing |
| Oct | 21 | Refreshing |
| Nov | 19 | Cool |
| Dec | 17 | Cool |
UV index in Arzew in May
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 Arzew 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 4 | 7 | 7 | 8 | 8 | 9 | 8 | 7 | 5 | 3 | 2 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | Very high | Very high | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 7 | High |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 7 | Very high |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Arzew in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Arzew 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 17 | 21 | 26 | 20 | 16 | 16 | 19 | 19 | 22 | 20 | 17 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 17 | Moderate |
| Feb | 21 | Moderate |
| Mar | 26 | Moderate |
| Apr | 20 | Moderate |
| May | 16 | Moderate |
| Jun | 16 | Moderate |
| Jul | 19 | Moderate |
| Aug | 19 | Moderate |
| Sep | 22 | Moderate |
| Oct | 20 | Moderate |
| Nov | 17 | Moderate |
| Dec | 18 | Moderate |
Where is Arzew?
Arzew sits at 35.9°N, 0.3°W, 10 m above sea level, in Algeria. The nearest listed city is Aïn el Bya, 5.0 km away.
Topography around Arzew
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Arzew.
Within 3 km, the terrain around Arzew has only modest variations in elevation — a maximum elevation change of 227 m around an average of 59 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 627 m; within 80 km, large variations in elevation — a maximum elevation change of 1,033 m.
The land around Arzew is covered by grassland (41%), artificial surfaces (20%) and water (20%) within 3 km, water (51%) and cropland (22%) within 16 km, and water (35%), cropland (33%) and grassland (20%) within 80 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
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 Arzew (35.8505°, -0.318°, elevation 10 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).