Climate averages 1991–2020
Nanyuki weather
in December.
A mild, moderately wet month: the 8th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a mild month in Nanyuki: daytime highs average 21.4°C and nights cool to about 11.9°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 62 mm of rain on roughly 13 days, which makes December a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 07 min on an average December day.
The nearest other city in this atlas is Nyeri (49 km away). In December its highs average 21.1°C, about as warm as Nanyuki, with 181 mm of rain.
Among the 37 cities listed in Kenya, Nanyuki ranks 34th of 37 for the warmest December highs and 21st of 37 for the driest December (rainfall, lowest first). The mean December high of those 37 cities is 26.0°C; Nanyuki is 4.7°C cooler than that mean.
From December to January, average highs rise by 1.1°C to 22.5°C, and monthly rainfall falls from 62 mm to 45 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
Nanyuki climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.5°C11.4°C | 11.4°C | 45 | 7.5 | 12.112 h |
| February | 23.8°C11.4°C | 11.4°C | 32 | 4.9 | 12.112 h |
| March | 23.9°C12.1°C | 12.1°C | 66 | 10.5 | 12.112 h |
| April | 22.5°C13.5°C | 13.5°C | 218 | 19.7 | 12.112 h |
| May | 21.6°C13.7°C | 13.7°C | 199 | 15.4 | 12.112 h |
| June | 20.9°C12.8°C | 12.8°C | 42 | 8.9 | 12.112 h |
| July | 20.0°C12.0°C | 12.0°C | 45 | 10.2 | 12.112 h |
| August | 20.3°C12.1°C | 12.1°C | 54 | 10.9 | 12.112 h |
| September | 21.6°C12.3°C | 12.3°C | 41 | 8.5 | 12.112 h |
| October | 21.7°C12.7°C | 12.7°C | 219 | 18.1 | 12.112 h |
| November | 20.8°C12.5°C | 12.5°C | 203 | 22.4 | 12.112 h |
| December, selected | 21.4°C11.9°C | 11.9°C | 62 | 12.8 | 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
December in nearby cities
- Nyeri in DecemberKenya · 49 kmHigh 21.1°C · Low 11.5°C · 181 mm rain
- Meru in DecemberKenya · 65 kmHigh 22.7°C · Low 13.9°C · 55 mm rain
- Isiolo in DecemberKenya · 69 kmHigh 26.7°C · Low 16.6°C · 55 mm rain
- Karuri (Murang'A), Kenya in DecemberKenya · 79 kmHigh 24.4°C · Low 14.2°C · 55 mm rain
- Naivasha in DecemberKenya · 107 kmHigh 22.3°C · Low 13.1°C · 119 mm rain
- Thika in DecemberKenya · 116 kmHigh 23.5°C · Low 14.4°C · 72 mm rain
- Nakuru in DecemberKenya · 117 kmHigh 23.1°C · Low 13.2°C · 38 mm rain
- Ruiru in DecemberKenya · 129 kmHigh 23.5°C · Low 14.0°C · 57 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 Nanyuki) is explained once on the Nanyuki year overview and on the Sources, method and limits page.