Climate Overview
The climate in Garissa is hot. The average annual temperature is 29°C and approximately 277mm of precipitation falls per year. November is the wettest month, receiving around 76mm of rainfall. Garissa sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Garissa sees moderate temperature variation throughout the year, ranging from 22°C to 37°C. March is the hottest month, with daytime highs reaching 37°C and an average of 31°C. August is the coolest month, with minimum temperatures around 22°C and an average of 27°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs.
Precipitation
Garissa is a quite dry location, receiving approximately 277mm of precipitation annually, which averages out to around 23mm per month. The wettest month is November, averaging 76mm of rainfall. April and December also tend to see above-average precipitation. The driest month is July, with just 3mm. That's 73mm less than November, 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
Garissa is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 5km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 6km/h in winter, 5km/h in spring, 3km/h in summer, 4km/h in autumn.
Seasons
92 days until Spring
It is currently winter in Garissa, which began on June 21, 2026. Garissa 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 37°C, while the coldest stretch bottoms out in August near 22°C. Spring is next, beginning on September 23, 2026 — 92 days from now.
Spring
Temperatures range from 22 to 35°C. Rainfall is relatively light, with around 103mm over the season and a monthly average of 34mm. Winds are generally light, averaging 5km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 24 to 36°C. Rainfall is relatively light, with around 64mm over the season and a monthly average of 21mm. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 37°C. Rainfall is relatively light, with around 99mm over the season and a monthly average of 33mm. Winds are generally light, averaging 4km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 22 to 33°C. Precipitation is minimal, with only around 12mm for the entire season. Winds are generally light, averaging 6km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Garissa 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.
