Weather in Port-au-Prince

July is the warmest month (average 29.4°C, high 32.6°C) and January is the coolest (average 26.2°C, low 22.5°C). That 3.2°C swing in monthly averages is the first thing to plan around in Port-au-Prince.

Rain is about 509 mm of rain spread through the year. The wettest month is October at 75 mm; the driest is February at 16 mm. Port-au-Prince is in Haiti at 18.5°N. The 2001–2020 NASA POWER daily record describes a mild oceanic climate. On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are January, February, and March.

Best months to visit Port-au-Prince

The three months with the highest comfort score are January, February, and March: January (26.2°C average, 19 mm, 66% humidity); February (26.5°C average, 16 mm, 64% humidity); March (26.7°C average, 24 mm, 64% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you prefer the hottest stretch, that is July. The coolest stretch is January.

Temperature through the year

Port-au-Prince has a 3.2°C gap between its coolest monthly average (26.2°C in January) and its warmest (29.4°C in July). That is a northern-hemisphere pattern.

Mean high across all twelve months is 31.1°C and mean low is 24.6°C. These are 20-year grid averages, so a city station can read a few degrees warmer or cooler.

Rain through the year

Annual rainfall is 509 mm. October leads at 75 mm; February is lightest at 16 mm.

A rainy day here is a day with at least 1 mm in the NASA POWER series. October averages 12 such days; February averages 3.

What stands out month by month

The year bottoms out in January. Plan for 22.5°C at night and 30.0°C in the afternoon. February is the driest month, averaging only 16 mm across 3 rainy days. Highs sit near 30.3°C.

July is the warmest month. Afternoon highs average 32.6°C and nights settle near 26.1°C, with 38 mm of rain. October is the wettest month — 75 mm and 12 rainy days, with 71% humidity.

How Port-au-Prince compares inside Haiti

Port-au-Prince is the only Haiti city in this dataset, so the figures on this page are the national sample we publish. They still come from the same NASA POWER daily series (2001–2020) used everywhere else on the site.