Weather in Haiti in September
Country-wide climate normals across 15 cities in Haiti.
How Hot Is Haiti in September?
Uniform heat across Haiti's September: averages climb to 32°C nationally with overnight lows of 25°C, narrow spread from coast to interior. The hottest cities like Delmas register similar readings to the coolest, so plan for consistently hot weather across the country.
Sunshine in Haiti in September
Limited sunshine and short daylight define Haiti's September: Port-au-Prince averages just 1.5h of direct sun, with the sun up between 6:30 am and 6:45 pm. The grey, overcast pattern is consistent across most of the country, with little regional variation in cloud cover.
Does It Rain In Haiti In September?
Moderate rainfall defines Haiti's September: Port-au-Prince averages 86mm across 16 days. Some regions see meaningfully wetter weather, especially coastal or mountain-facing areas, while continental interiors tend toward the drier end of the spectrum.
Is Haiti Humid In September?
Haiti's September is humid — 74% on average in Port-au-Prince, with similar muggy conditions in most regions. Afternoons feel sticky, especially after rain, and the moisture amplifies warm-day temperatures noticeably. Coastal cities see the highest readings.
Wind In Haiti In September
Haiti's September has gentle wind — Port-au-Prince averages 12 kph, and the country tracks similarly. Outdoor activity is comfortable, and afternoon thermals add a pleasant breeze in inland areas.
Cloud Cover In Haiti In September
Heavy overcast covers Haiti in September: 75% cloud cover in Port-au-Prince, with similar grey conditions in most regions. Direct sun is rare, and the pattern is persistent across the country. Coastal and northern regions feel especially heavy.