Lamu, Kenya climate
As Tropical savanna (dry summer)
Lamu has a remarkably steady tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is March with an average daily high near 32°C, while the coldest is August averaging around 24°C at night. Precipitation totals about 774 mm a year and is strongly seasonal — May alone averages 197 mm while February barely receives 7 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Lamu climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 32 | 31 | 29 | 28 | 27 | 27 | 28 | 29 | 30 | 31 |
| Avg temp (°C) | 28 | 29 | 29 | 29 | 28 | 26 | 26 | 26 | 26 | 27 | 28 | 28 |
| Avg low (°C) | 25 | 25 | 26 | 27 | 26 | 25 | 24 | 24 | 24 | 25 | 26 | 26 |
| Precipitation (mm) | 19 | 7 | 29 | 112 | 197 | 79 | 58 | 42 | 40 | 70 | 75 | 46 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 32 | 31 | 29 | 28 |
| Avg temp (°C) | 28 | 29 | 29 | 29 | 28 | 26 |
| Avg low (°C) | 25 | 25 | 26 | 27 | 26 | 25 |
| Precipitation (mm) | 19 | 7 | 29 | 112 | 197 | 79 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 27 | 28 | 29 | 30 | 31 |
| Avg temp (°C) | 26 | 26 | 26 | 27 | 28 | 28 |
| Avg low (°C) | 24 | 24 | 24 | 25 | 26 | 26 |
| Precipitation (mm) | 58 | 42 | 40 | 70 | 75 | 46 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 9 | 12 | 13 | 3 | — | — | — | — | — | — | 0.4 | 5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 9 | 12 | 13 | 3 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | — | — | — | 0.4 | 5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 46 | 45 | 44 | 53 | 54 | 56 | 53 | 43 | 38 | 40 | 48 | 46 |
| Relative humidity (%) | 74 | 73 | 73 | 77 | 80 | 78 | 76 | 75 | 75 | 76 | 78 | 76 |
| Wind speed (m/s) | 4.3 | 4.2 | 3.6 | 3.9 | 5.1 | 5.9 | 6.1 | 5.8 | 5.4 | 4.5 | 3.3 | 3.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 46 | 45 | 44 | 53 | 54 | 56 |
| Relative humidity (%) | 74 | 73 | 73 | 77 | 80 | 78 |
| Wind speed (m/s) | 4.3 | 4.2 | 3.6 | 3.9 | 5.1 | 5.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 43 | 38 | 40 | 48 | 46 |
| Relative humidity (%) | 76 | 75 | 75 | 76 | 78 | 76 |
| Wind speed (m/s) | 6.1 | 5.8 | 5.4 | 4.5 | 3.3 | 3.7 |
Methodology & sources
Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
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.