Climate averages 1991–2020
Busia weather
in May.
A warm, very wet month: the 10th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Busia: daytime highs average 25.6°C and nights cool to about 17.0°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 276 mm of rain on roughly 29 days, which makes May a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 08 min on an average May day.
The nearest other city in this atlas is Khwisero (63 km away). In May its highs average 24.7°C, 0.9°C cooler than Busia, with 237 mm of rain.
Among the 37 cities listed in Kenya, Busia ranks 15th of 37 for the warmest May highs and 37th of 37 for the driest May (rainfall, lowest first). The mean May high of those 37 cities is 25.2°C; Busia is 0.4°C warmer than that mean.
From May to June, average highs fall by 0.3°C to 25.3°C, and monthly rainfall falls from 276 mm to 177 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Busia climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.3°C17.2°C | 17.2°C | 111 | 14.9 | 12.112 h |
| February | 28.4°C17.8°C | 17.8°C | 110 | 14.8 | 12.112 h |
| March | 27.6°C17.6°C | 17.6°C | 216 | 22.7 | 12.112 h |
| April | 26.0°C17.4°C | 17.4°C | 291 | 27.5 | 12.112 h |
| May, selected | 25.6°C17.0°C | 17.0°C | 276 | 29.0 | 12.112 h |
| June | 25.3°C16.5°C | 16.5°C | 177 | 24.2 | 12.112 h |
| July | 25.1°C16.3°C | 16.3°C | 134 | 20.9 | 12.112 h |
| August | 25.7°C16.4°C | 16.4°C | 168 | 23.9 | 12.112 h |
| September | 26.4°C16.6°C | 16.6°C | 181 | 25.5 | 12.112 h |
| October | 26.1°C16.9°C | 16.9°C | 220 | 27.9 | 12.112 h |
| November | 25.8°C16.7°C | 16.7°C | 210 | 24.1 | 12.112 h |
| December | 26.4°C16.8°C | 16.8°C | 142 | 19.2 | 12.112 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Khwisero in MayKenya · 63 kmHigh 24.7°C · Low 16.1°C · 237 mm rain
- Kakamega in MayKenya · 74 kmHigh 24.7°C · Low 14.7°C · 194 mm rain
- Kisumu in MayKenya · 96 kmHigh 26.8°C · Low 18.1°C · 206 mm rain
- Njeru in MayUganda · 104 kmHigh 24.6°C · Low 19.5°C · 215 mm rain
- Kitale in MayKenya · 117 kmHigh 20.1°C · Low 12.1°C · 220 mm rain
- Eldoret in MayKenya · 129 kmHigh 22.4°C · Low 13.0°C · 245 mm rain
- Lugazi in MayUganda · 131 kmHigh 24.4°C · Low 17.9°C · 230 mm rain
- Kisii in MayKenya · 146 kmHigh 24.5°C · Low 15.3°C · 176 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Busia) is explained once on the Busia year overview and on the Sources, method and limits page.