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River Cess, Liberia climate
Af Tropical rainforest
River Cess has a remarkably steady tropical climate (Tropical rainforest, Köppen Af). The hottest month is February with an average daily high near 87°F, while the coldest is July averaging around 73°F at night. Around 118 inches of precipitation falls each year, peaking in September (15.5 inches) and easing off in January (4.3 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)River Cess climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 87 | 87 | 86 | 84 | 82 | 81 | 81 | 82 | 83 | 84 | 85 |
| Avg temp (°F) | 80 | 82 | 82 | 81 | 80 | 79 | 77 | 77 | 78 | 79 | 80 | 80 |
| Avg low (°F) | 74 | 76 | 77 | 77 | 77 | 75 | 73 | 73 | 74 | 75 | 75 | 75 |
| Precipitation (in) | 4.3 | 5.4 | 7.9 | 9.3 | 12.9 | 14.4 | 10.2 | 12.9 | 15.5 | 12.5 | 7.8 | 5.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 87 | 87 | 86 | 84 | 82 |
| Avg temp (°F) | 80 | 82 | 82 | 81 | 80 | 79 |
| Avg low (°F) | 74 | 76 | 77 | 77 | 77 | 75 |
| Precipitation (in) | 4.3 | 5.4 | 7.9 | 9.3 | 12.9 | 14.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 81 | 81 | 82 | 83 | 84 | 85 |
| Avg temp (°F) | 77 | 77 | 78 | 79 | 80 | 80 |
| Avg low (°F) | 73 | 73 | 74 | 75 | 75 | 75 |
| Precipitation (in) | 10.2 | 12.9 | 15.5 | 12.5 | 7.8 | 5.1 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 5 | 7 | 4 | 0.9 | 0.1 | — | — | — | — | 0.0 | 0.3 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 5 | 7 | 4 | 0.9 | 0.1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | — | — | — | 0.0 | 0.3 | 1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 44 | 53 | 62 | 68 | 74 | 75 | 73 | 75 | 79 | 72 | 64 | 48 |
| Relative humidity (%) | 78 | 80 | 83 | 85 | 87 | 88 | 86 | 85 | 87 | 88 | 87 | 83 |
| Wind speed (mph) | 3.6 | 4.0 | 4.0 | 4.0 | 4.3 | 5.4 | 6.0 | 6.3 | 5.9 | 4.9 | 3.9 | 3.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 44 | 53 | 62 | 68 | 74 | 75 |
| Relative humidity (%) | 78 | 80 | 83 | 85 | 87 | 88 |
| Wind speed (mph) | 3.6 | 4.0 | 4.0 | 4.0 | 4.3 | 5.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 75 | 79 | 72 | 64 | 48 |
| Relative humidity (%) | 86 | 85 | 87 | 88 | 87 | 83 |
| Wind speed (mph) | 6.0 | 6.3 | 5.9 | 4.9 | 3.9 | 3.3 |
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.