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 90°F, while the coldest is August averaging around 75°F at night. Precipitation totals about 30 inches a year and is strongly seasonal — May alone averages 7.8 inches while February barely receives 0.27 inches.
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 (°F) | 89 | 90 | 90 | 87 | 84 | 82 | 81 | 81 | 83 | 85 | 86 | 88 |
| Avg temp (°F) | 83 | 84 | 85 | 84 | 82 | 79 | 78 | 78 | 79 | 81 | 82 | 83 |
| Avg low (°F) | 77 | 78 | 80 | 80 | 79 | 77 | 75 | 75 | 75 | 77 | 78 | 78 |
| Precipitation (in) | 0.7 | 0.3 | 1.1 | 4.4 | 7.8 | 3.1 | 2.3 | 1.7 | 1.6 | 2.8 | 3.0 | 1.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 89 | 90 | 90 | 87 | 84 | 82 |
| Avg temp (°F) | 83 | 84 | 85 | 84 | 82 | 79 |
| Avg low (°F) | 77 | 78 | 80 | 80 | 79 | 77 |
| Precipitation (in) | 0.7 | 0.3 | 1.1 | 4.4 | 7.8 | 3.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 81 | 81 | 83 | 85 | 86 | 88 |
| Avg temp (°F) | 78 | 78 | 79 | 81 | 82 | 83 |
| Avg low (°F) | 75 | 75 | 75 | 77 | 78 | 78 |
| Precipitation (in) | 2.3 | 1.7 | 1.6 | 2.8 | 3.0 | 1.8 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 9 | 12 | 13 | 3 | — | — | — | — | — | — | 0.4 | 5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 9 | 12 | 13 | 3 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (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 (mph) | 9.6 | 9.3 | 8.1 | 8.7 | 11.3 | 13.1 | 13.7 | 13.0 | 12.0 | 10.0 | 7.4 | 8.2 |
| 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 (mph) | 9.6 | 9.3 | 8.1 | 8.7 | 11.3 | 13.1 |
| 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 (mph) | 13.7 | 13.0 | 12.0 | 10.0 | 7.4 | 8.2 |
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.