Assab in Summer
In summer (June, July and August), Assab sees average daytime highs around 34°C and overnight lows near 31°C, with 24 mm of rain over about 3 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 34°C. The sky is clear or mostly clear about 63% of the time across summer, and the air most often feels miserable.
Summer is Assab's weakest season of the year to visit on our travel score. For the whole year in context, see Assab's year-round climate.
- Avg daytime high
- 34°C
- warmest season of the year
- Avg overnight low
- 31°C
- Rainfall
- 24 mm
- 3 wet days
- Avg wind
- 19 km/h
- Travel score
- 3.6
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Assab in Summer
Across summer, daytime highs hold fairly steady around 34°C.
A typical summer day in Assab reaches about 34°C and drops to 31°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Assab
Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Assab weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| 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 Summer
The sky is clear or mostly clear about 63% of the time across summer.
Chance of precipitation in Summer
Assab gets around 24 mm of rain over 3 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 19 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 42 min in early June to 12 h 18 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.9 kWh/m².
Hazard calendar for Assab
In summer, Assab overlaps 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 summer a good time to visit Assab?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Assab. The water and warmth also suit a beach or pool day.
What to pack for Assab in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Assab sees daytime highs around 34°C and nights near 31°C. Pack light clothes and sun protection. Worth having: a windbreaker.
Sea temperature near Assab in Summer
The nearest coast averages about 31°C across summer — 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 Summer
Clear-sky midday UV across summer averages around 9 (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 Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer 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.