Port-au-Prince climate
Port-au-Prince (Haiti) has a hot semi-arid climate (Köppen BSh). The average temperature over the year is 29 °C84 °F, and about 509 mm20 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Port-au-Prince climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3187 | 2374 | 2781 | 190.7 |
| Feb | 3188 | 2374 | 2781 | 160.6 |
| Mar | 3189 | 2475 | 2882 | 241.0 |
| Apr | 3290 | 2577 | 2983 | 371.5 |
| May | 3290 | 2679 | 2984 | 622.4 |
| Jun | 3391 | 2780 | 3086 | 411.6 |
| Jul | 3493 | 2781 | 3087 | 381.5 |
| Aug | 3492 | 2781 | 3087 | 642.5 |
| Sep | 3391 | 2781 | 3086 | 491.9 |
| Oct | 3290 | 2780 | 2985 | 753.0 |
| Nov | 3188 | 2578 | 2883 | 562.2 |
| Dec | 3188 | 2476 | 2882 | 271.1 |
| Year | 3493 | 2374 | 2984 | 50920 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 66% | 38% | 4.9 | 11:08 |
| Feb | 64% | 40% | 5.5 | 11:31 |
| Mar | 64% | 48% | 6.1 | 11:59 |
| Apr | 64% | 54% | 6.4 | 12:33 |
| May | 67% | 63% | 6.2 | 12:00 |
| Jun | 67% | 58% | 6.5 | 13:14 |
| Jul | 64% | 53% | 6.7 | 13:08 |
| Aug | 66% | 55% | 6.4 | 12:45 |
| Sep | 68% | 59% | 6.0 | 12:13 |
| Oct | 71% | 58% | 5.3 | 11:41 |
| Nov | 70% | 47% | 4.8 | 11:14 |
| Dec | 67% | 36% | 4.7 | 11:01 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Port-au-Prince is like
The warmest month is August, with an average high of 34 °C92 °F and a low of 27 °C81 °F. The coldest is January, when highs average 31 °C87 °F and lows 23 °C74 °F. Seasonal differences are small — just 3.4 °C6 °F between the warmest and the coolest month.
Annual precipitation is moderate at about 509 mm20 in. The wettest three-month stretch is August–October, which brings 37% of the annual total. Months with less than 20 mm0.8 in on average: January and February. The wettest month is October (75 mm3.0 in), the driest is February (16 mm0.6 in).
Relative humidity ranges from 64% in February to 71% in October. The clearest skies (lowest average cloud amount, 36%) are typical of December. Average wind speed near the ground ranges from 7 km/h (4 mph) in September to 8 km/h (5 mph) in June. Daylight lasts from about 11.0 hours in December to 13.2 hours in June.
Best time to visit Port-au-Prince
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–March: average highs of 31 °C87 °F to 31 °C89 °F with 16 mm0.6 in to 56 mm2.2 in of precipitation per month.
The most challenging month is August, which is hot, with average highs of 34 °C92 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Port-au-Prince
- Wetter months (May, August–November) — highs 3188 to 34 °C92 °F, lows 2578 to 27 °C81 °F, about 61 mm2.4 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Drier months (December–April, June and July) — highs 3187 to 34 °C93 °F, lows 2374 to 27 °C81 °F, about 29 mm1.1 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Port-au-Prince compares
Compared with Santo Domingo, about 258 km to the east, Port-au-Prince is on average 1.7 °C3.1 °F warmer and receives 12% less precipitation (509 mm20 in vs 581 mm23 in). The difference is largest in July (2.1 °C3.8 °F warmer).
Of the 9 places in Haiti covered by World Climates, Port-au-Prince is the warmest by annual mean temperature and the 7th wettest by annual precipitation. See all of them on the Haiti climate page.
Places in other countries with the most similar temperature and rainfall pattern: Punto Fijo (Venezuela, BSh), La Romana (Dominican Republic, BSh) and Manzanillo (Cuba, BSh).
The same NASA POWER grid cell also contains Carrefour (pop. 511,345), Delmas (pop. 395,260), Pétionville (pop. 376,834), Cité Soleil (pop. 265,072), Croix-des-Bouquets (pop. 229,127) and Léogâne (pop. 134,190). Their long-term averages in this dataset are essentially the same as for Port-au-Prince, so they do not have separate pages.
Nearby places
- Arcahaie 31 km · 29 °C84 °F · 499 mm20 in
- Jacmel 40 km · 28 °C83 °F · 584 mm23 in
- Tigwav 57 km · 29 °C83 °F · 538 mm21 in
- Saint-Marc 74 km · 27 °C81 °F · 499 mm20 in
- Dessalines 82 km · 28 °C82 °F · 542 mm21 in
- Cap-Haïtien 136 km · 27 °C81 °F · 653 mm26 in
- Les Cayes 154 km · 28 °C82 °F · 797 mm31 in
- Port-de-Paix 164 km · 27 °C81 °F · 700 mm28 in
Frequently asked questions
What is the warmest month in Port-au-Prince?
August is the warmest month in Port-au-Prince, with an average high of 34 °C (92 °F) and an average low of 27 °C (81 °F).
What is the coldest month in Port-au-Prince?
January is the coldest month, with an average high of 31 °C (87 °F) and an average low of 23 °C (74 °F).
When does it rain the most in Port-au-Prince?
October is the wettest month with about 75 mm (3.0 in) of precipitation; February is the driest with about 16 mm (0.6 in).
What is the best time to visit Port-au-Prince?
Judging by long-term averages, the most comfortable months are November–March.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 235 m, while Port-au-Prince lies at about 27 m. Temperatures on this page were therefore adjusted by +1.4 °C2.4 °F using the standard lapse rate of 6.5 °C per 1,000 m.