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Robertsport, Liberia climate
As Tropical savanna (dry summer)
Robertsport has a remarkably steady tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is April with an average daily high near 87°F, while the coldest is August averaging around 73°F at night. Precipitation totals about 72 inches a year and is strongly seasonal — August alone averages 16.4 inches while January barely receives 0.34 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)Robertsport climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 88 | 88 | 87 | 86 | 84 | 82 | 81 | 82 | 84 | 85 | 86 |
| Avg temp (°F) | 80 | 81 | 82 | 82 | 81 | 80 | 78 | 77 | 78 | 79 | 80 | 80 |
| Avg low (°F) | 73 | 74 | 76 | 77 | 77 | 75 | 74 | 73 | 74 | 75 | 75 | 74 |
| Precipitation (in) | 0.3 | 0.7 | 1.5 | 2.9 | 5.4 | 9.2 | 11.2 | 16.4 | 11.8 | 8.6 | 2.8 | 0.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 88 | 88 | 87 | 86 | 84 |
| Avg temp (°F) | 80 | 81 | 82 | 82 | 81 | 80 |
| Avg low (°F) | 73 | 74 | 76 | 77 | 77 | 75 |
| Precipitation (in) | 0.3 | 0.7 | 1.5 | 2.9 | 5.4 | 9.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 81 | 82 | 84 | 85 | 86 |
| Avg temp (°F) | 78 | 77 | 78 | 79 | 80 | 80 |
| Avg low (°F) | 74 | 73 | 74 | 75 | 75 | 74 |
| Precipitation (in) | 11.2 | 16.4 | 11.8 | 8.6 | 2.8 | 0.9 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 7 | 7 | 7 | 5 | 4 | 1.0 | 0.0 | — | 0.3 | 1 | 3 | 5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 7 | 7 | 7 | 5 | 4 | 1.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 0.0 | — | 0.3 | 1 | 3 | 5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 47 | 52 | 62 | 66 | 76 | 83 | 84 | 86 | 85 | 75 | 67 | 53 |
| Relative humidity (%) | 77 | 80 | 82 | 83 | 85 | 86 | 87 | 88 | 89 | 88 | 85 | 80 |
| Wind speed (mph) | 2.2 | 2.2 | 2.3 | 2.3 | 2.5 | 2.9 | 3.4 | 3.5 | 3.0 | 2.5 | 2.0 | 2.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 47 | 52 | 62 | 66 | 76 | 83 |
| Relative humidity (%) | 77 | 80 | 82 | 83 | 85 | 86 |
| Wind speed (mph) | 2.2 | 2.2 | 2.3 | 2.3 | 2.5 | 2.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 84 | 86 | 85 | 75 | 67 | 53 |
| Relative humidity (%) | 87 | 88 | 89 | 88 | 85 | 80 |
| Wind speed (mph) | 3.4 | 3.5 | 3.0 | 2.5 | 2.0 | 2.0 |
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.