Climate Overview
The climate in Thika is warm and mild. The average annual temperature is 20°C and approximately 1090mm of precipitation falls per year. April is the wettest month, receiving around 239mm of rainfall. Thika sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Thika sees moderate temperature variation throughout the year, ranging from 15°C to 28°C. The warmest month is March, when average highs reach 28°C and the mean temperature sits around 22°C. August is the coolest month, with minimum temperatures around 15°C and an average of 19°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs.
Precipitation
Thika is a moderately rainy area, receiving approximately 1090mm of precipitation annually, which averages out to around 91mm per month. The wettest month is April, averaging 239mm of rainfall. November and May also tend to see above-average precipitation. The driest month is July, with just 26mm. That's 214mm 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.
Wind
Thika is relatively calm, with an average annual wind speed of 2km/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 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 1km/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.
Seasons
4 days until Winter
It is currently autumn in Thika, which began on March 20, 2026. Thika 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 28°C, while the coldest stretch bottoms out in August near 15°C. Winter is next, beginning on June 21, 2026 — 4 days from now.
Spring
Temperatures range from 15 to 27°C. Rainfall is heavy, totalling around 350mm across the season with a monthly average of 117mm. Winds are generally light, averaging 2km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 16 to 28°C. Rainfall is relatively light, with around 148mm over the season and a monthly average of 49mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 17 to 28°C. Rainfall is heavy, totalling around 485mm across the season with a monthly average of 162mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 15 to 24°C. Rainfall is relatively light, with around 107mm over the season and a monthly average of 36mm. Winds are generally light, averaging 1km/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 Thika is during January, February, March, June, July, August, September 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. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Thika 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.
