Climate averages 1991–2020
Garissa weather
in December.
A hot, moderately wet month: the 7th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Garissa: daytime highs average 32.8°C and nights cool to about 23.7°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 42 mm of rain on roughly 8 days, which makes December a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 09 min on an average December day.
The nearest other city in this atlas is Meru (228 km away). In December its highs average 22.7°C, 10.1°C cooler than Garissa, with 55 mm of rain.
Among the 37 cities listed in Kenya, Garissa ranks 3rd of 37 for the warmest December highs and 5th of 37 for the driest December (rainfall, lowest first). The mean December high of those 37 cities is 26.0°C; Garissa is 6.8°C warmer than that mean.
From December to January, average highs rise by 1.6°C to 34.4°C, and monthly rainfall falls from 42 mm to 17 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
Garissa climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 34.4°C23.8°C | 23.8°C | 17 | 1.9 | 12.112 h |
| February | 35.5°C24.2°C | 24.2°C | 3.8 | 0.9 | 12.112 h |
| March | 35.6°C25.1°C | 25.1°C | 20 | 3.6 | 12.112 h |
| April | 34.4°C24.9°C | 24.9°C | 36 | 7.9 | 12.112 h |
| May | 33.2°C24.0°C | 24.0°C | 16 | 3.1 | 12.112 h |
| June | 32.1°C22.8°C | 22.8°C | 2.1 | 0.4 | 12.112 h |
| July | 31.2°C21.8°C | 21.8°C | 2.0 | 0.3 | 12.112 h |
| August | 31.5°C21.6°C | 21.6°C | 2.4 | 0.2 | 12.112 h |
| September | 32.6°C22.1°C | 22.1°C | 4.6 | 0.8 | 12.112 h |
| October | 33.6°C23.2°C | 23.2°C | 16 | 3.6 | 12.112 h |
| November | 32.4°C23.7°C | 23.7°C | 67 | 11.8 | 12.112 h |
| December, selected | 32.8°C23.7°C | 23.7°C | 42 | 7.6 | 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
- Meru in DecemberKenya · 228 kmHigh 22.7°C · Low 13.9°C · 55 mm rain
- Isiolo in DecemberKenya · 246 kmHigh 26.7°C · Low 16.6°C · 55 mm rain
- Wajir in DecemberKenya · 249 kmHigh 32.6°C · Low 23.0°C · 30 mm rain
- Kaambooni in DecemberSomalia · 253 kmHigh 31.3°C · Low 25.2°C · 32 mm rain
- Mwala in DecemberKenya · 263 kmHigh 24.7°C · Low 16.7°C · 80 mm rain
- Karuri (Murang'A), Kenya in DecemberKenya · 275 kmHigh 24.4°C · Low 14.2°C · 55 mm rain
- Nanyuki in DecemberKenya · 291 kmHigh 21.4°C · Low 11.9°C · 62 mm rain
- Thika in DecemberKenya · 294 kmHigh 23.5°C · Low 14.4°C · 72 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 Garissa) is explained once on the Garissa year overview and on the Sources, method and limits page.