Climate Overview
The climate in Ilongero is warm and mild. The average annual temperature is 20°C and approximately 665mm of precipitation falls per year. January is the wettest month, receiving around 159mm of rainfall. Ilongero sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Ilongero sees moderate temperature variation throughout the year, ranging from 13°C to 28°C. The warmest month is October, when average highs reach 28°C and the mean temperature sits around 22°C. July is the coolest month, with minimum temperatures around 13°C and an average of 18°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs.
Precipitation
Ilongero is a relatively dry area, receiving approximately 665mm of precipitation annually, which averages out to around 55mm per month. The wettest month is January, averaging 159mm of rainfall. December and March also tend to see above-average precipitation. The driest month is August, with just 0mm. That's 159mm less than January, 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
Ilongero is mildly breezy, with an average annual wind speed of 18km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in January, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 11km/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 22km/h in winter, 21km/h in spring, 13km/h in summer, 19km/h in autumn.
Seasons
89 days until Winter
It is currently autumn in Ilongero, which began on March 20, 2026. Ilongero sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in October at around 28°C, while the coldest stretch bottoms out in July near 13°C. Winter is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 14 to 28°C. Rainfall is relatively light, with around 69mm over the season and a monthly average of 23mm. Winds are moderate at around 21km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 16 to 26°C. Rainfall is heavy, totalling around 387mm across the season with a monthly average of 129mm. Winds are generally light, averaging 13km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 15 to 26°C. Precipitation is moderate at around 209mm for the season, averaging 70mm per month. Winds are moderate at around 19km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 13 to 26°C. Precipitation is minimal, with only around 0mm for the entire season. Winds are moderate at around 22km/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 Ilongero is during February, April, May, June, July, August, September, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 29mm per month. 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 Ilongero 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.