This page presents Haiti's climate context for the current climatology, 1991-2020, derived from observed, historical data. Information should be used to build a strong understanding of current climate conditions in order to appreciate future climate scenarios and projected change. You can visualize data for the current climatology through spatial variation, the seasonal cycle, or as a time series. Analysis is available for both annual and seasonal data. Data presentation defaults to national-scale aggregation, however sub-national data aggregations can be accessed by clicking within a country, on a sub-national unit. Other historical climatologies can be selected from the Time Period dropdown list. Data for specific coordinates can be downloaded for in the Data Download page.
Located in the Caribbean’s Great Antilles, Haiti has a hot and humid tropical climate. Daily temperatures typically range between 19°C and 28°C in the winter and 23°C to 33°C during the summer months. Northern and windward slopes in the mountainous regions receive up to three times more precipitation than the leeward side. Annual precipitation in the mountains averages 1,200 mm, while the annual precipitation in the lowlands is as low as 550 mm. The Plaine du Gonaïves and the eastern part of the Plaine du Cul-de-Sac are the driest regions in the country. The wet season is long, particularly in the northern and southern regions of the island, with two pronounced peaks occurring between March and November.
- Mean temperatures have increased by 0.45°C since 1960, with warming most rapid in the warmest season, June-November.
- The frequency of hot days and hot nights increased by 63 and 48 days per year, respectively, between 1960 and 2003.
- The frequency of cold days and cold nights has decreased steadily since 1960.
- Mean annual rainfall has decreased by 5 mm per month per decade since 1960.
- The intensity of Atlantic hurricanes has increased substantially since 1980.