Assab, Eritrea experiences average highs of 33°C (91°F) and lows of 27°C (81°F) throughout the year. The climate is relatively dry, with only 1 rainy days per month on average. Sunshine is abundant, averaging about 11 hours per day. Average highs have stayed broadly stable across the available records.
Assab, Eritrea Weather & Climate 2026
Monthly climate averages for Assab, Eritrea. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Jul–Sep At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6/10
Best: January, February, November, December
UV Index
8
High
Temperature 33°C / 27°C
Feels Like 35°C / 29°C
Rainy Days 1
Rainfall 5 mm
Sunshine 11 h
Humidity 62%
Wind Speed 30 km/h
Dew Point 22°C
Hottest Month
37°C
July
Avg Low31°C
Rain3days
Coldest Month
22°C
January
Avg High29°C
Rain0days
Driest Month
0days
January
Avg High29°C
Avg Low22°C
Windiest Month
35 km/h
March (Gusts 56)
Sea Temperature
25°C – 32°C
Warmest water: September (
32.4°C
)
Worst Time to Visit
Consider avoiding May, July, August, September due to extreme heat, oppressive humidity.
Sun Position
Sunrise 05:44
Daylight 12.9h
Sunset 18:37
Live conditions—
Assab on the map · live conditions
Assab, Eritrea
- Continent
- Africa
- Country
- Eritrea
- City
- Assab
- Population
- 21.3K
- Coordinates
- 13.01°, 42.74°
Seasonal Breakdown
Spring
Mar–May
Avg High 33°C
Avg Low 26°C
Rain 1 days/mo
Summer
Jun–Aug
Avg High 36°C
Avg Low 30°C
Rain 3 days/mo
Autumn
Sep–Nov
Avg High 34°C
Avg Low 27°C
Rain 1 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 30°C
Avg Low 23°C
Rain 0 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 29°C / 22°C . Feb: 30°C / 23°C . Mar: 32°C / 24°C . Apr: 34°C / 26°C . May: 35°C / 28°C . Jun: 36°C / 29°C . Jul: 37°C / 31°C . Aug: 36°C / 30°C . Sep: 36°C / 30°C . Oct: 34°C / 27°C . Nov: 32°C / 25°C . Dec: 30°C / 23°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 1 mm. Feb: 1 mm. Mar: 2 mm. Apr: 5 mm. May: 2 mm. Jun: 1 mm. Jul: 14 mm. Aug: 25 mm. Sep: 6 mm. Oct: 3 mm. Nov: 1 mm. Dec: 2 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 66%. Feb: 66%. Mar: 63%. Apr: 62%. May: 61%. Jun: 56%. Jul: 55%. Aug: 60%. Sep: 62%. Oct: 61%. Nov: 62%. Dec: 64%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 32 km/h . Feb: 33 km/h . Mar: 35 km/h . Apr: 34 km/h . May: 27 km/h . Jun: 26 km/h . Jul: 30 km/h . Aug: 27 km/h . Sep: 25 km/h . Oct: 28 km/h . Nov: 33 km/h . Dec: 32 km/h .
Sunshine
Sunshine
Sunshine: Jan: 11h. Feb: 11h. Mar: 11h. Apr: 12h. May: 12h. Jun: 11h. Jul: 10h. Aug: 11h. Sep: 11h. Oct: 11h. Nov: 11h. Dec: 10h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 25°C . Feb: 26°C . Mar: 27°C . Apr: 29°C . May: 31°C . Jun: 31°C . Jul: 32°C . Aug: 32°C . Sep: 32°C . Oct: 31°C . Nov: 28°C . Dec: 26°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 7. Feb: UV 8. Mar: UV 8. Apr: UV 8. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 8. Oct: UV 8. Nov: UV 7. Dec: UV 7.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 37°C | Jul · 37°C |
| Coldest month | Jan 2025 · 22°C | Jan · 22°C |
| Wettest month | Aug 2025 · 40 mm | Aug · 25 mm |
| Windiest month | Mar 2025 · 36 km/h | Mar · 35 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March
Good April
Fair May
Poor June
Poor July
Poor August
Poor September
Poor October
Fair November best
Excellent December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 29°C / 22°C | 29°C / 23°C | 0days (1 mm) Excellent | 10.6h Excellent | 66% Muggy | 6.8 High | Excellent | View Details |
| February best | 30°C / 23°C | 29°C / 23°C | 1days (1 mm) Excellent | 10.8h Excellent | 66% Muggy | 7.6 Very High | Excellent | View Details |
| March | 32°C / 24°C | 32°C / 25°C | 1days (2 mm) Excellent | 11h Excellent | 63% Muggy | 8 Very High | Good | View Details |
| April | 34°C / 26°C | 35°C / 28°C | 1days (5 mm) Excellent | 11.5h Excellent | 62% Muggy | 8.4 Very High | Fair | View Details |
| May | 35°C / 28°C | 39°C / 32°C | 0days (2 mm) Excellent | 11.6h Excellent | 61% Muggy | 8 Very High | Poor | View Details |
| June | 36°C / 29°C | 40°C / 32°C | 0days (1 mm) Excellent | 10.8h Excellent | 56% Moderate | 7.9 Very High | Poor | View Details |
| July | 37°C / 31°C | 40°C / 33°C | 3days (14 mm) Excellent | 10.2h Excellent | 55% Moderate | 8 Very High | Poor | View Details |
| August | 36°C / 30°C | 40°C / 33°C | 5days (25 mm) Good | 10.7h Excellent | 60% Moderate | 8 Very High | Poor | View Details |
| September | 36°C / 30°C | 41°C / 35°C | 2days (6 mm) Excellent | 10.8h Excellent | 62% Muggy | 8.2 Very High | Poor | View Details |
| October | 34°C / 27°C | 36°C / 30°C | 1days (3 mm) Excellent | 10.9h Excellent | 61% Muggy | 7.7 Very High | Fair | View Details |
| November best | 32°C / 25°C | 32°C / 26°C | 0days (1 mm) Excellent | 10.5h Excellent | 62% Muggy | 7 High | Excellent | View Details |
| December best | 30°C / 23°C | 30°C / 24°C | 0days (2 mm) Excellent | 10.3h Excellent | 64% Muggy | 6.6 High | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Assab are January, February, November, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Assab, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Assab is July, with average daytime highs of 37°C (98°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Assab is January, with average overnight lows of 22°C (72°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Assab is August, averaging 25mm of precipitation across 5 rainy days. An umbrella or waterproof jacket is essential.
Assab receives approximately 130 sunshine hours per year. The sunniest month is May with around 12 hours. Based on climate data for Assab.
The least favorable months to visit Assab are May, July, August, September, primarily due to extreme heat, oppressive humidity. For the best conditions, consider January, February, November, December instead.
The annual average UV index in Assab is 8, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Assab is 62%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in January, February, March, April, May, June, July, August, September, October, November, December average 29°C (84°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Assab are 30 km/h (19 mph). The windiest month is March with peak winds reaching 35 km/h (22 mph) (gusts up to 56 km/h / 35 mph).
Assab averages 14 clear-sky days per month with overall cloud cover around 28%. The clearest skies occur in December.
The annual average dew point in Assab is 22°C (72°F), which feels muggy and uncomfortable. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Assab has a Hot Desert climate, classified as BWh under the Köppen system. Arid climates have very low rainfall relative to temperature, with large swings between daytime heat and cool nights.
The 'feels like' temperature in Assab ranges from 29°C (84°F) to 35°C (95°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
June is not the best time to visit Assab, with a climate score of 3.7/10. Consider visiting during January, February, November, December instead for better conditions.
For June in Assab, pack Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Sandals. With average highs of 36°C (97°F) and 0 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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