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Porto Novo, Cape Verde climate
BWh Hot desert
Porto Novo has a remarkably steady warm-temperate climate (Hot desert, Köppen BWh). The hottest month is September with an average daily high near 81°F, while the coldest is February averaging around 68°F at night. Precipitation totals about 11 inches a year and is strongly seasonal — December alone averages 1.7 inches while June barely receives 0.26 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)Porto Novo climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 72 | 72 | 72 | 73 | 74 | 76 | 78 | 80 | 81 | 80 | 78 | 75 |
| Avg temp (°F) | 71 | 70 | 70 | 71 | 72 | 74 | 76 | 78 | 79 | 78 | 76 | 73 |
| Avg low (°F) | 69 | 68 | 68 | 69 | 70 | 72 | 74 | 76 | 77 | 76 | 74 | 71 |
| Precipitation (in) | 1.4 | 1.2 | 0.6 | 0.5 | 0.3 | 0.3 | 0.3 | 1.0 | 1.5 | 0.9 | 1.3 | 1.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 72 | 72 | 72 | 73 | 74 | 76 |
| Avg temp (°F) | 71 | 70 | 70 | 71 | 72 | 74 |
| Avg low (°F) | 69 | 68 | 68 | 69 | 70 | 72 |
| Precipitation (in) | 1.4 | 1.2 | 0.6 | 0.5 | 0.3 | 0.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 78 | 80 | 81 | 80 | 78 | 75 |
| Avg temp (°F) | 76 | 78 | 79 | 78 | 76 | 73 |
| Avg low (°F) | 74 | 76 | 77 | 76 | 74 | 71 |
| Precipitation (in) | 0.3 | 1.0 | 1.5 | 0.9 | 1.3 | 1.7 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 55 | 56 | 54 | 57 | 55 | 57 | 62 | 59 | 57 | 57 | 58 | 56 |
| Relative humidity (%) | 75 | 77 | 78 | 79 | 80 | 82 | 81 | 81 | 81 | 80 | 78 | 76 |
| Wind speed (mph) | 13.0 | 13.2 | 12.3 | 12.3 | 12.5 | 11.8 | 9.7 | 9.4 | 10.6 | 10.8 | 11.0 | 12.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 55 | 56 | 54 | 57 | 55 | 57 |
| Relative humidity (%) | 75 | 77 | 78 | 79 | 80 | 82 |
| Wind speed (mph) | 13.0 | 13.2 | 12.3 | 12.3 | 12.5 | 11.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 59 | 57 | 57 | 58 | 56 |
| Relative humidity (%) | 81 | 81 | 81 | 80 | 78 | 76 |
| Wind speed (mph) | 9.7 | 9.4 | 10.6 | 10.8 | 11.0 | 12.0 |
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.