Climate Insights for Assab

The climate in Assab is hot. The average annual temperature is 29°C and approximately 53mm of precipitation falls per year. August is the wettest month, receiving around 19mm of rainfall. Assab is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are January, February, December, when temperatures can drop to 23°C.

Assab sees moderate temperature variation throughout the year, ranging from 23°C to 35°C. The warmest month is July, when average highs reach 35°C and the mean temperature sits around 33°C. January is the coolest month, with minimum temperatures around 23°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between October and November, with a 2°C shift in average temperatures.

Assab is a quite dry location, receiving approximately 53mm of precipitation annually, which averages out to around 4mm per month. The wettest month is August, averaging 19mm of rainfall. July and January also tend to see above-average precipitation. The driest month is June, with just 1mm. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Assab is very windy, with an average annual wind speed of 31km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 37km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in September, with average winds dropping to 25km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 12km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 36km/h in winter, 33km/h in spring, 27km/h in summer, 30km/h in autumn.

It is currently spring in Assab, which began on March 20, 2026. Assab is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 35°C, while the coldest stretch bottoms out in January near 23°C. Summer is next, beginning on June 21, 2026 — 90 days from now.

The table below shows monthly climate averages for Assab based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.