Climate Overview
The climate in Port-au-Prince is warm and mild. The average annual temperature is 25°C and approximately 1328mm of precipitation falls per year. May is the wettest month, receiving around 193mm of rainfall. Port-au-Prince is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to 18°C.
Temperature
Port-au-Prince sees moderate temperature variation throughout the year, ranging from 18°C to 31°C. The warmest month is August, when average highs reach 31°C and the mean temperature sits around 26°C. January is the coolest month, with minimum temperatures around 18°C and an average of 23°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
Port-au-Prince is a fairly wet location, receiving approximately 1328mm of precipitation annually, which averages out to around 111mm per month. The wettest month is May, averaging 193mm of rainfall. October and September also tend to see above-average precipitation. The driest month is December, with just 23mm. That's 170mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Port-au-Prince is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.
Seasons
4 days until Summer
It is currently spring in Port-au-Prince, which began on March 20, 2026. Port-au-Prince is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 31°C, while the coldest stretch bottoms out in January near 18°C. Summer is next, beginning on June 21, 2026 — 4 days from now.
Spring
Temperatures range from 19 to 29°C. Rainfall is heavy, totalling around 430mm across the season with a monthly average of 143mm. Winds are generally light, averaging 1km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 23 to 31°C. Rainfall is heavy, totalling around 329mm across the season with a monthly average of 110mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 20 to 30°C. Rainfall is heavy, totalling around 482mm across the season with a monthly average of 161mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 18 to 28°C. Rainfall is relatively light, with around 86mm over the season and a monthly average of 29mm. Winds are generally light, averaging 1km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Port-au-Prince is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 39mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 31°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Port-au-Prince based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
