Climate averages 1991–2020
Kisii weather
in December.
A warm, very wet month: the joint 7th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Kisii: daytime highs average 24.5°C and nights cool to about 14.5°C. By daytime temperature it is the joint 7th warmest of the 12 months.
Expect about 216 mm of rain on roughly 21 days, which makes December a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 10 min on an average December day.
The nearest other city in this atlas is Migori (54 km away). In December its highs average 25.9°C, 1.4°C warmer than Kisii, with 169 mm of rain.
Among the 37 cities listed in Kenya, Kisii ranks 19th of 37 for the warmest December highs and 37th of 37 for the driest December (rainfall, lowest first). The mean December high of those 37 cities is 26.0°C; Kisii is 1.6°C cooler than that mean.
From December to January, average highs rise by 0.7°C to 25.1°C, and monthly rainfall falls from 216 mm to 151 mm.
The annual picture
December 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
Kisii climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.1°C14.6°C | 14.6°C | 151 | 16.7 | 12.212 h |
| February | 26.4°C15.0°C | 15.0°C | 99 | 13.0 | 12.112 h |
| March | 26.1°C15.2°C | 15.2°C | 189 | 18.9 | 12.112 h |
| April | 25.0°C15.4°C | 15.4°C | 277 | 23.4 | 12.112 h |
| May | 24.5°C15.3°C | 15.3°C | 176 | 19.6 | 12.112 h |
| June | 23.7°C14.6°C | 14.6°C | 87 | 13.6 | 12.112 h |
| July | 23.6°C14.1°C | 14.1°C | 51 | 10.7 | 12.112 h |
| August | 24.2°C14.2°C | 14.2°C | 77 | 13.1 | 12.112 h |
| September | 25.1°C14.7°C | 14.7°C | 93 | 14.2 | 12.112 h |
| October | 25.3°C15.1°C | 15.1°C | 149 | 17.5 | 12.112 h |
| November | 24.5°C14.6°C | 14.6°C | 260 | 23.3 | 12.112 h |
| December, selected | 24.5°C14.5°C | 14.5°C | 216 | 21.2 | 12.212 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
December in nearby cities
- Migori in DecemberKenya · 54 kmHigh 25.9°C · Low 16.4°C · 169 mm rain
- Kisumu in DecemberKenya · 64 kmHigh 27.9°C · Low 17.9°C · 179 mm rain
- Tarime in DecemberTanzania · 87 kmHigh 26.2°C · Low 15.9°C · 147 mm rain
- Khwisero in DecemberKenya · 97 kmHigh 25.6°C · Low 15.6°C · 137 mm rain
- Kakamega in DecemberKenya · 107 kmHigh 26.1°C · Low 13.9°C · 136 mm rain
- Musoma in DecemberTanzania · 141 kmHigh 25.2°C · Low 19.7°C · 140 mm rain
- Eldoret in DecemberKenya · 145 kmHigh 23.0°C · Low 11.9°C · 65 mm rain
- Busia in DecemberKenya · 146 kmHigh 26.4°C · Low 16.8°C · 142 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 Kisii) is explained once on the Kisii year overview and on the Sources, method and limits page.