Nairobi weather in December
In December, Nairobi has an average high of 26 °C78 °F and an average low of 14 °C57 °F, with about 65 mm2.6 in of precipitation. It is the 8th warmest month of the year and ranks 4th for precipitation.
How December compares with other months
Compared with November, December is about the same temperature and drier by 16 mm0.6 in. Compared with January, December is 0.5 °C1 °F cooler on average and wetter by 26 mm1.0 in. Daylight lasts about 12.2 hours around the middle of the month. Average relative humidity is 71% and the average cloud amount 57%.
Is December a good time to visit Nairobi?
Yes — December is one of the most comfortable months to visit Nairobi by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in December
For Nairobi in December, pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
December in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Nairobi | 2678 | 1457 | 652.6 |
| Ruiru | 2678 | 1558 | 803.1 |
| Thika | 2679 | 1559 | 803.1 |
| Mwala | 2882 | 1660 | 803.2 |
| Karuri | 2882 | 1661 | 893.5 |
| Nakuru | 2577 | 1356 | 953.7 |
| Arusha | 2882 | 1661 | 1104.3 |
| Moshi | 3189 | 1966 | 843.3 |
| Kisii | 2578 | 1559 | 1556.1 |
Nearby places that are more than 1 °C1.8 °F warmer in December: Mwala, Karuri, Arusha and Moshi.
Other months in Nairobi
- January27 °C81 °F / 13 °C56 °F
- February29 °C83 °F / 14 °C57 °F
- March28 °C83 °F / 14 °C58 °F
- April26 °C79 °F / 14 °C58 °F
- May25 °C77 °F / 13 °C56 °F
- June25 °C77 °F / 12 °C54 °F
- July25 °C77 °F / 12 °C53 °F
- August26 °C79 °F / 12 °C53 °F
- September28 °C82 °F / 13 °C55 °F
- October28 °C82 °F / 13 °C56 °F
- November26 °C78 °F / 14 °C57 °F
- December26 °C78 °F / 14 °C57 °F
Frequently asked questions
How warm is Nairobi in December?
In December the average high in Nairobi is 26 °C (78 °F) and the average low is 14 °C (57 °F).
Does it rain a lot in Nairobi in December?
On average about 65 mm (2.6 in) of precipitation falls in December; it ranks 4th of the 12 months.
Is December the warmest month in Nairobi?
No. The warmest month in Nairobi is February, with an average high of 29 °C (83 °F). The coldest month is July, with an average low of 12 °C (53 °F).
How long is the day in Nairobi in December?
In the middle of December the day in Nairobi lasts about 12.2 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Nairobi in December?
The average relative humidity in December is about 71%. Combined with warm days, it can feel muggy.
How cloudy is Nairobi in December?
On average about 57% of the sky is covered by cloud in December. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.