Climate Overview
The climate in Assosa / Asosa is warm and mild. The average annual temperature is 23°C and approximately 1157mm of precipitation falls per year. September is the wettest month, receiving around 206mm of rainfall. Assosa / Asosa is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: March, February, April. The coldest months are January, August, July, when temperatures can drop to 17°C.
Temperature
Assosa / Asosa sees moderate temperature variation throughout the year, ranging from 17°C to 33°C. The warmest month is March, when average highs reach 33°C and the mean temperature sits around 26°C. January is the coolest month, with minimum temperatures around 17°C and an average of 23°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 2°C shift in average temperatures.
Precipitation
Assosa / Asosa is a moderately rainy area, receiving approximately 1157mm of precipitation annually, which averages out to around 96mm per month. The wettest month is September, averaging 206mm of rainfall. August and October also tend to see above-average precipitation. The driest month is January, with just 0mm. That's 206mm less than September, the wettest month. 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.
Wind
Assosa / Asosa is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months.
Seasons
90 days until Summer
It is currently spring in Assosa / Asosa, which began on March 20, 2026. Assosa / Asosa 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 March at around 33°C, while the coldest stretch bottoms out in January near 17°C. Summer is next, beginning on June 21, 2026 — 90 days from now.
Spring
Temperatures range from 19 to 33°C. Precipitation is moderate at around 220mm for the season, averaging 73mm per month. Winds are generally light, averaging 11km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 17 to 26°C. Rainfall is heavy, totalling around 523mm across the season with a monthly average of 174mm. Winds are generally light, averaging 11km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 17 to 28°C. Rainfall is heavy, totalling around 412mm across the season with a monthly average of 137mm. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 17 to 32°C. Precipitation is minimal, with only around 2mm for the entire season. Winds are generally light, averaging 10km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Assosa / Asosa is during January, February, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 8mm per month. By contrast, March can be uncomfortably hot with temperatures reaching 33°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Assosa / Asosa 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.
