Climate Insights for Cap-Haïtien

The climate in Cap-Haïtien is hot. The average annual temperature is 25°C and approximately 1197mm of precipitation falls per year. Cap-Haïtien receives a notable amount of rainfall throughout the year, including during its driest month. Cap-Haïtien is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: September, August, July. The coldest months are February, January, March, when temperatures can drop to 22°C.

Cap-Haïtien has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is September, when average highs reach 29°C and the mean temperature sits around 27°C. February is the coolest month, with minimum temperatures around 22°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows.

Cap-Haïtien is a moderately rainy area, receiving approximately 1197mm of precipitation annually, which averages out to around 100mm per month. The wettest month is November, averaging 158mm of rainfall. October and December also tend to see above-average precipitation. The driest month is June, with just 61mm. That's 97mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Cap-Haïtien is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/h gap between the calmest and windiest months.

It is currently summer in Cap-Haïtien, which began on June 21, 2026. Cap-Haïtien 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 September at around 29°C, while the coldest stretch bottoms out in February near 22°C. Autumn is next, beginning on September 23, 2026 (12 days from now).

The best time to visit Cap-Haïtien is during January and February, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 86mm per month. By contrast, September can be uncomfortably hot with temperatures reaching 29°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Cap-Haïtien 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.