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Kiambu, Kenya climate
Cwb Subtropical highland (dry winter)
Kiambu has a remarkably steady warm-temperate climate (Subtropical highland (dry winter), Köppen Cwb). The hottest month is March with an average daily high near 28°C, while the coldest is July averaging around 11°C at night. Precipitation totals about 926 mm a year and is strongly seasonal — November alone averages 219 mm while September barely receives 8 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsKiambu climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 29 | 28 | 26 | 25 | 24 | 23 | 24 | 26 | 27 | 25 | 26 |
| Avg temp (°C) | 20 | 21 | 21 | 21 | 20 | 18 | 18 | 18 | 19 | 21 | 20 | 20 |
| Avg low (°C) | 13 | 14 | 15 | 15 | 14 | 13 | 11 | 12 | 12 | 14 | 15 | 15 |
| Precipitation (mm) | 90 | 68 | 70 | 151 | 136 | 31 | 14 | 15 | 8 | 50 | 219 | 73 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 29 | 28 | 26 | 25 | 24 |
| Avg temp (°C) | 20 | 21 | 21 | 21 | 20 | 18 |
| Avg low (°C) | 13 | 14 | 15 | 15 | 14 | 13 |
| Precipitation (mm) | 90 | 68 | 70 | 151 | 136 | 31 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 24 | 26 | 27 | 25 | 26 |
| Avg temp (°C) | 18 | 18 | 19 | 21 | 20 | 20 |
| Avg low (°C) | 11 | 12 | 12 | 14 | 15 | 15 |
| Precipitation (mm) | 14 | 15 | 8 | 50 | 219 | 73 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 5 | 3 | 7 | 10 | 9 | 3 | 2 | 2 | 2 | 5 | 13 | 8 |
| Days with high ≥ 32°C (days) | — | 0.3 | 0.1 | 0.0 | 0.0 | — | — | — | — | 0.0 | — | 0.0 |
| Days with low ≤ 0°C (days) | — | — | — | — | — | — | — | 0.0 | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 5 | 3 | 7 | 10 | 9 | 3 |
| Days with high ≥ 32°C (days) | — | 0.3 | 0.1 | 0.0 | 0.0 | — |
| Days with low ≤ 0°C (days) | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 2 | 2 | 5 | 13 | 8 |
| Days with high ≥ 32°C (days) | — | — | — | 0.0 | — | 0.0 |
| Days with low ≤ 0°C (days) | — | 0.0 | — | — | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 51 | 49 | 58 | 71 | 68 | 69 | 68 | 66 | 56 | 63 | 69 | 57 |
| Clear days (≤ 30% cloud) | 8 | 8 | 5 | 1 | 1 | 1 | 2 | 2 | 5 | 3 | 0.9 | 5 |
| Partly cloudy days (30–70%) | 15 | 13 | 15 | 12 | 14 | 13 | 14 | 14 | 16 | 15 | 14 | 16 |
| Cloudy days (≥ 70%) | 8 | 7 | 11 | 17 | 16 | 15 | 16 | 15 | 10 | 13 | 15 | 10 |
| Relative humidity (%) | 64 | 59 | 63 | 73 | 75 | 70 | 64 | 62 | 59 | 62 | 73 | 72 |
| Wind speed (m/s) | 3.5 | 3.5 | 3.4 | 3.0 | 2.6 | 2.2 | 2.4 | 2.8 | 3.3 | 3.6 | 3.6 | 3.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 51 | 49 | 58 | 71 | 68 | 69 |
| Clear days (≤ 30% cloud) | 8 | 8 | 5 | 1 | 1 | 1 |
| Partly cloudy days (30–70%) | 15 | 13 | 15 | 12 | 14 | 13 |
| Cloudy days (≥ 70%) | 8 | 7 | 11 | 17 | 16 | 15 |
| Relative humidity (%) | 64 | 59 | 63 | 73 | 75 | 70 |
| Wind speed (m/s) | 3.5 | 3.5 | 3.4 | 3.0 | 2.6 | 2.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 66 | 56 | 63 | 69 | 57 |
| Clear days (≤ 30% cloud) | 2 | 2 | 5 | 3 | 0.9 | 5 |
| Partly cloudy days (30–70%) | 14 | 14 | 16 | 15 | 14 | 16 |
| Cloudy days (≥ 70%) | 16 | 15 | 10 | 13 | 15 | 10 |
| Relative humidity (%) | 64 | 62 | 59 | 62 | 73 | 72 |
| Wind speed (m/s) | 2.4 | 2.8 | 3.3 | 3.6 | 3.6 | 3.6 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 20 years of daily observations at Jomo Kenyatta Intl, a weather station, about 19 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.