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Port-au-Prince, Haiti climate
Aw Tropical savanna (dry winter)
Port-au-Prince has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is August with an average daily high near 92°F, while the coldest is January averaging around 68°F at night. Precipitation totals about 33 inches a year and is strongly seasonal — August alone averages 5.1 inches while January barely receives 0.75 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)Port-au-Prince climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 87 | 87 | 88 | 89 | 90 | 91 | 92 | 91 | 90 | 89 | 88 |
| Avg temp (°F) | 78 | 78 | 79 | 80 | 82 | 83 | 84 | 84 | 83 | 82 | 80 | 78 |
| Avg low (°F) | 68 | 68 | 70 | 72 | 75 | 75 | 76 | 76 | 74 | 73 | 72 | 69 |
| Precipitation (in) | 0.8 | 0.8 | 1.2 | 2.6 | 4.8 | 3.5 | 1.8 | 5.1 | 4.2 | 4.4 | 2.7 | 1.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 87 | 87 | 88 | 89 | 90 |
| Avg temp (°F) | 78 | 78 | 79 | 80 | 82 | 83 |
| Avg low (°F) | 68 | 68 | 70 | 72 | 75 | 75 |
| Precipitation (in) | 0.8 | 0.8 | 1.2 | 2.6 | 4.8 | 3.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 91 | 92 | 91 | 90 | 89 | 88 |
| Avg temp (°F) | 84 | 84 | 83 | 82 | 80 | 78 |
| Avg low (°F) | 76 | 76 | 74 | 73 | 72 | 69 |
| Precipitation (in) | 1.8 | 5.1 | 4.2 | 4.4 | 2.7 | 1.6 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 42 | 50 | 56 | 65 | 59 | 55 | 57 | 62 | 59 | 51 | 40 |
| Relative humidity (%) | 68 | 66 | 64 | 64 | 70 | 72 | 69 | 70 | 71 | 73 | 70 | 70 |
| Wind speed (mph) | 5.3 | 5.6 | 5.5 | 5.6 | 5.8 | 6.6 | 6.7 | 6.2 | 5.1 | 4.6 | 4.5 | 5.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 42 | 50 | 56 | 65 | 59 |
| Relative humidity (%) | 68 | 66 | 64 | 64 | 70 | 72 |
| Wind speed (mph) | 5.3 | 5.6 | 5.5 | 5.6 | 5.8 | 6.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 55 | 57 | 62 | 59 | 51 | 40 |
| Relative humidity (%) | 69 | 70 | 71 | 73 | 70 | 70 |
| Wind speed (mph) | 6.7 | 6.2 | 5.1 | 4.6 | 4.5 | 5.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 22 years of daily observations at Maria Montez Intl, a weather station, about 133 km from the city centre. The underlying daily records come from NOAA's global station network.
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.