Assab weather in May
In May, Assab sees average daytime highs of 33°C and overnight lows near 29°C, with 1 mm of rain across 0.2 wet days and about 12.6 hours of daylight. It is the 5th-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 73% of the time in May, and the air most often feels miserable.
Daylight stretches from about 12 h 30 min at the start of May to 12 h 42 min by month's end. Set against the rest of the year, May is Assab's 8th-clearest and 9th-windiest month. For the whole year in context, see Assab's year-round climate.
- Daytime high
- 33°
- 5th warmest
- Overnight low
- 29°
- 8th coldest
- Rainfall
- 1 mm
- 0.2 wet days
- Daylight
- 12 h 36 min
- 5:47 AM – 6:23 PM
- Cloud cover
- 26%
- 8th clearest
- Wind
- 19 km/h
- 9th windiest
- Solar energy
- 6.73 kWh/m²
- Travel score
- 4.7
- out of 10
Assab is city in Eritrea.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Day-to-day highs hold fairly steady near 33°C through the month.
A typical May day in Assab reaches about 33°C in the afternoon and slips back to 29°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 34°C. Set against its neighbours, May runs about 1°C warmer than April and about 1°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) | 32 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 |
| Avg low (°C) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 32 | 28 |
| 2 | 33 | 28 |
| 3 | 33 | 28 |
| 4 | 33 | 28 |
| 5 | 33 | 28 |
| 6 | 33 | 28 |
| 7 | 33 | 28 |
| 8 | 33 | 28 |
| 9 | 33 | 28 |
| 10 | 33 | 28 |
| 11 | 33 | 28 |
| 12 | 33 | 29 |
| 13 | 33 | 29 |
| 14 | 33 | 29 |
| 15 | 33 | 29 |
| 16 | 33 | 29 |
| 17 | 33 | 29 |
| 18 | 33 | 29 |
| 19 | 33 | 29 |
| 20 | 33 | 29 |
| 21 | 33 | 29 |
| 22 | 33 | 29 |
| 23 | 33 | 29 |
| 24 | 33 | 29 |
| 25 | 33 | 29 |
| 26 | 33 | 29 |
| 27 | 33 | 29 |
| 28 | 33 | 30 |
| 29 | 33 | 30 |
| 30 | 33 | 30 |
| 31 | 33 | 30 |
How May really feels in Assab
Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Assab weather by month
How May compares with the rest of the year at a glance. May is the 5th-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 23° | 9 | 1.7 | 11.3 | 8.3 |
| Feb | 28° / 24° | 4 | 1.2 | 11.6 | 8.0 |
| Mar | 30° / 25° | 3 | 0.8 | 11.9 | 6.9 |
| Apr | 32° / 27° | 2 | 0.7 | 12.3 | 5.6 |
| May | 33° / 29° | 1 | 0.2 | 12.6 | 4.7 |
| Jun | 34° / 30° | 0 | 0.1 | 12.8 | 3.9 |
| Jul | 35° / 31° | 8 | 0.7 | 12.7 | 3.4 |
| Aug | 35° / 31° | 16 | 1.7 | 12.4 | 3.4 |
| Sep | 34° / 30° | 4 | 0.5 | 12.1 | 3.9 |
| Oct | 32° / 28° | 3 | 0.6 | 11.7 | 5.2 |
| Nov | 30° / 25° | 1 | 0.4 | 11.4 | 6.7 |
| Dec | 28° / 24° | 5 | 0.8 | 11.2 | 7.8 |
Cloud cover in May
The sky is clear or mostly clear about 73% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 16%.
| 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 (%) | 86 | 86 | 86 | 85 | 85 | 85 | 85 | 84 | 84 | 84 | 84 | 84 | 84 | 84 | 84 | 84 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 82 | 82 |
| Cloudier (%) | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 86 | 14 |
| 2 | 86 | 14 |
| 3 | 86 | 14 |
| 4 | 85 | 15 |
| 5 | 85 | 15 |
| 6 | 85 | 15 |
| 7 | 85 | 15 |
| 8 | 84 | 16 |
| 9 | 84 | 16 |
| 10 | 84 | 16 |
| 11 | 84 | 16 |
| 12 | 84 | 16 |
| 13 | 84 | 16 |
| 14 | 84 | 16 |
| 15 | 84 | 16 |
| 16 | 84 | 16 |
| 17 | 83 | 17 |
| 18 | 83 | 17 |
| 19 | 83 | 17 |
| 20 | 83 | 17 |
| 21 | 83 | 17 |
| 22 | 83 | 17 |
| 23 | 83 | 17 |
| 24 | 83 | 17 |
| 25 | 83 | 17 |
| 26 | 83 | 17 |
| 27 | 83 | 17 |
| 28 | 83 | 17 |
| 29 | 83 | 17 |
| 30 | 82 | 18 |
| 31 | 82 | 18 |
Chance of precipitation in May
Assab gets around 1 mm of rain over 0.2 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 1% and peaks near 1% on the wettest days.
| 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 (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Rain chance (%) | |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 1 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 0 |
| 21 | 0 |
| 22 | 0 |
| 23 | 0 |
| 24 | 1 |
| 25 | 1 |
| 26 | 1 |
| 27 | 1 |
| 28 | 1 |
| 29 | 1 |
| 30 | 1 |
| 31 | 1 |
Humidity in May
Most of May feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the miserable band about 64% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Muggy (%) | 10 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Oppressive (%) | 37 | 36 | 35 | 35 | 34 | 33 | 33 | 32 | 32 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 31 | 31 | 32 |
| Miserable (%) | 52 | 53 | 55 | 55 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 63 | 65 | 65 | 66 | 67 | 68 | 69 | 69 | 69 | 69 | 69 | 70 | 70 | 70 | 70 | 69 | 69 | 68 | 68 | 67 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 1 | 10 | 37 | 52 |
| 2 | 1 | 10 | 36 | 53 |
| 3 | 1 | 9 | 35 | 55 |
| 4 | 1 | 9 | 35 | 55 |
| 5 | 1 | 8 | 34 | 57 |
| 6 | 1 | 8 | 33 | 58 |
| 7 | 1 | 7 | 33 | 59 |
| 8 | 1 | 7 | 32 | 60 |
| 9 | 1 | 6 | 32 | 61 |
| 10 | 1 | 6 | 31 | 62 |
| 11 | 1 | 5 | 31 | 63 |
| 12 | 1 | 5 | 31 | 63 |
| 13 | 1 | 4 | 30 | 65 |
| 14 | 1 | 4 | 30 | 65 |
| 15 | 1 | 3 | 30 | 66 |
| 16 | 0 | 3 | 30 | 67 |
| 17 | 0 | 3 | 29 | 68 |
| 18 | 0 | 2 | 29 | 69 |
| 19 | 0 | 2 | 29 | 69 |
| 20 | 0 | 2 | 29 | 69 |
| 21 | 0 | 2 | 29 | 69 |
| 22 | 0 | 2 | 29 | 69 |
| 23 | 0 | 1 | 29 | 70 |
| 24 | 0 | 1 | 29 | 70 |
| 25 | 0 | 1 | 29 | 70 |
| 26 | 0 | 1 | 29 | 70 |
| 27 | 0 | 1 | 30 | 69 |
| 28 | 0 | 1 | 30 | 69 |
| 29 | 0 | 1 | 31 | 68 |
| 30 | 0 | 1 | 31 | 68 |
| 31 | 0 | 1 | 32 | 67 |
Wind in May
Winds average 19 km/h in May.
Across May, daily wind ranges from about 17 km/h on the calmest days to 24 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) | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 24 | breezy |
| 2 | 24 | breezy |
| 3 | 24 | breezy |
| 4 | 23 | breezy |
| 5 | 23 | breezy |
| 6 | 23 | breezy |
| 7 | 22 | breezy |
| 8 | 22 | breezy |
| 9 | 21 | breezy |
| 10 | 21 | breezy |
| 11 | 21 | breezy |
| 12 | 20 | breezy |
| 13 | 20 | light breeze |
| 14 | 20 | light breeze |
| 15 | 19 | light breeze |
| 16 | 19 | light breeze |
| 17 | 19 | light breeze |
| 18 | 18 | light breeze |
| 19 | 18 | light breeze |
| 20 | 18 | light breeze |
| 21 | 18 | light breeze |
| 22 | 18 | light breeze |
| 23 | 18 | light breeze |
| 24 | 17 | light breeze |
| 25 | 17 | light breeze |
| 26 | 17 | light breeze |
| 27 | 17 | light breeze |
| 28 | 17 | light breeze |
| 29 | 17 | light breeze |
| 30 | 17 | light breeze |
| 31 | 17 | light breeze |
Sunrise & sunset in May
Daylight runs from about 12 h 30 min at the start of May to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 12 minutes over May. Sunrise moves from 5:53 AM to 5:45 AM, and sunset from 6:20 PM to 6:28 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) | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 |
| Sunrise (AM) | 5:53 | 5:52 | 5:52 | 5:51 | 5:51 | 5:50 | 5:50 | 5:50 | 5:49 | 5:49 | 5:49 | 5:48 | 5:48 | 5:48 | 5:48 | 5:47 | 5:47 | 5:47 | 5:47 | 5:46 | 5:46 | 5:46 | 5:46 | 5:46 | 5:46 | 5:46 | 5:46 | 5:45 | 5:45 | 5:45 | 5:45 |
| Sunset (PM) | 6:20 | 6:20 | 6:20 | 6:21 | 6:21 | 6:21 | 6:21 | 6:21 | 6:22 | 6:22 | 6:22 | 6:22 | 6:22 | 6:23 | 6:23 | 6:23 | 6:24 | 6:24 | 6:24 | 6:24 | 6:25 | 6:25 | 6:25 | 6:25 | 6:26 | 6:26 | 6:26 | 6:27 | 6:27 | 6:27 | 6:28 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.5 | 5:53 | 6:20 |
| 2 | 12.5 | 5:52 | 6:20 |
| 3 | 12.5 | 5:52 | 6:20 |
| 4 | 12.5 | 5:51 | 6:21 |
| 5 | 12.5 | 5:51 | 6:21 |
| 6 | 12.5 | 5:50 | 6:21 |
| 7 | 12.5 | 5:50 | 6:21 |
| 8 | 12.5 | 5:50 | 6:21 |
| 9 | 12.5 | 5:49 | 6:22 |
| 10 | 12.5 | 5:49 | 6:22 |
| 11 | 12.6 | 5:49 | 6:22 |
| 12 | 12.6 | 5:48 | 6:22 |
| 13 | 12.6 | 5:48 | 6:22 |
| 14 | 12.6 | 5:48 | 6:23 |
| 15 | 12.6 | 5:48 | 6:23 |
| 16 | 12.6 | 5:47 | 6:23 |
| 17 | 12.6 | 5:47 | 6:24 |
| 18 | 12.6 | 5:47 | 6:24 |
| 19 | 12.6 | 5:47 | 6:24 |
| 20 | 12.6 | 5:46 | 6:24 |
| 21 | 12.6 | 5:46 | 6:25 |
| 22 | 12.6 | 5:46 | 6:25 |
| 23 | 12.7 | 5:46 | 6:25 |
| 24 | 12.7 | 5:46 | 6:25 |
| 25 | 12.7 | 5:46 | 6:26 |
| 26 | 12.7 | 5:46 | 6:26 |
| 27 | 12.7 | 5:46 | 6:26 |
| 28 | 12.7 | 5:45 | 6:27 |
| 29 | 12.7 | 5:45 | 6:27 |
| 30 | 12.7 | 5:45 | 6:27 |
| 31 | 12.7 | 5:45 | 6:28 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 6.73 kWh/m².
For context, solar energy here swings from a low near 5.43 kWh/m² to a high of 6.97 kWh/m² in April across the year — May's 6.73 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) | 7.0 | 7.0 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.7 | 6.7 | 6.7 | 6.6 | 6.6 | 6.6 | 6.5 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.4 | 6.3 | 6.3 |
| 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 | 7.0 | Intense |
| 2 | 7.0 | Intense |
| 3 | 6.9 | Intense |
| 4 | 6.9 | Intense |
| 5 | 6.9 | Intense |
| 6 | 6.9 | Intense |
| 7 | 6.9 | Intense |
| 8 | 6.9 | Intense |
| 9 | 6.9 | Intense |
| 10 | 6.9 | Intense |
| 11 | 6.8 | Intense |
| 12 | 6.8 | Intense |
| 13 | 6.8 | Intense |
| 14 | 6.8 | Intense |
| 15 | 6.8 | Intense |
| 16 | 6.8 | Intense |
| 17 | 6.7 | Intense |
| 18 | 6.7 | Intense |
| 19 | 6.7 | Intense |
| 20 | 6.6 | Intense |
| 21 | 6.6 | Intense |
| 22 | 6.6 | Intense |
| 23 | 6.5 | Intense |
| 24 | 6.5 | Intense |
| 25 | 6.5 | Intense |
| 26 | 6.5 | Intense |
| 27 | 6.4 | Intense |
| 28 | 6.4 | Intense |
| 29 | 6.4 | Intense |
| 30 | 6.3 | Intense |
| 31 | 6.3 | Intense |
Hazard calendar for Assab
In May, Assab sits inside its dust season. The full year is below, with each hazard's peak months called out.
Assab sees seasonal dust haze (May–September), heaviest in July.
Is May a good time to visit Assab?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a reasonable time to visit Assab for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Assab in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Assab sees daytime highs around 33°C and nights near 29°C. Pack light clothes and sun protection.
Sea temperature near Assab in May
The nearest coast averages about 29°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 September at about 32°C and coldest in February near 25°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 26 | 25 | 26 | 28 | 29 | 31 | 31 | 31 | 32 | 29 | 27 | 26 |
| Comfort | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 25 | Warm |
| Mar | 26 | Warm |
| Apr | 28 | Warm |
| May | 29 | Tropical |
| Jun | 31 | Tropical |
| Jul | 31 | Tropical |
| Aug | 31 | Tropical |
| Sep | 32 | Tropical |
| Oct | 29 | Tropical |
| Nov | 27 | Warm |
| Dec | 26 | Warm |
UV index in Assab in May
Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Assab peaks around March 23 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 7 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 10 | 11 | 13 | 12 | 11 | 10 | 9 | 10 | 10 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Very high | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 12 | Extreme |
| May | 11 | Extreme |
| Jun | 10 | Very high |
| Jul | 9 | Very high |
| Aug | 10 | Very high |
| Sep | 10 | Extreme |
| Oct | 10 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | Very high |
Air quality in Assab 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 Assab is worst in July — around 44 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (November, 17 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) | 25 | 28 | 28 | 23 | 24 | 36 | 44 | 39 | 26 | 18 | 17 | 19 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 25 | Moderate |
| Feb | 28 | Moderate |
| Mar | 28 | Moderate |
| Apr | 23 | Moderate |
| May | 24 | Moderate |
| Jun | 36 | Poor |
| Jul | 44 | Poor |
| Aug | 39 | Poor |
| Sep | 26 | Moderate |
| Oct | 18 | Moderate |
| Nov | 17 | Moderate |
| Dec | 19 | Moderate |
Where is Assab?
Assab sits at 13.0°N, 42.7°E, 22 m above sea level, in Eritrea. The nearest listed city is Mocha, 65 km away.
Topography around Assab
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Assab.
Within 3 km, the terrain around Assab has only modest variations in elevation — a maximum elevation change of 171 m around an average of 16 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 396 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,961 m.
The land around Assab is covered by bare terrain (51%) and water (40%) within 3 km, water (56%) and bare terrain (41%) within 16 km, and bare terrain (55%) and water (44%) within 80 km.
Eritrea travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / L
- 230 V · 50 Hz
- Prices
- ≈ 33% of US
- price level, 2021
- GDP per capita
- $689
- 2011
- Homicide rate
- 15.6
- per 100k, 2012
- Road deaths
- 37.9
- per 100k/yr, 2019
- Income group
- Low
- World Bank
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 Assab (13.0092°, 42.7394°, elevation 22 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).