Climate Insights for Athi River

The climate in Athi River is warm and mild. The average annual temperature is 20°C and approximately 843mm of precipitation falls per year. April is the wettest month, receiving around 181mm of rainfall. Athi River sits near the equator, so seasonal temperature differences are minimal throughout the year.

Athi River sees moderate temperature variation throughout the year, ranging from 14°C to 27°C. The warmest month is March, when average highs reach 27°C and the mean temperature sits around 22°C. July is the coolest month, with minimum temperatures around 14°C and an average of 18°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs.

Athi River is a moderately rainy area, receiving approximately 843mm of precipitation annually, which averages out to around 70mm per month. The wettest month is April, averaging 181mm of rainfall. November and March also tend to see above-average precipitation. The driest month is August, with just 17mm. That's 164mm less than April, 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.

Athi River is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

It is currently winter in Athi River, which began on June 21, 2026. Athi River sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 27°C, while the coldest stretch bottoms out in July near 14°C. Spring is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Athi River is during January, February, May, June, July, August, September, October and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 49mm per month. By contrast, March can be uncomfortably hot with temperatures reaching 27°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Athi River 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.