Port-au-Prince Weather in September
September in Port-au-Prince typically sees daytime highs of 30°C (86°F) and nighttime lows of 22°C (72°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Port-au-Prince in September
Rain is expected on roughly 14 days, totalling around 199 mm (7.8 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Port-au-Prince in September
Expect highs of 30°C (86°F) in Port-au-Prince in September, with nights dropping to around 22°C (72°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. With overnight lows of 22°C (72°F), evenings stay pleasantly warm.
Sunshine in Port-au-Prince in September
The days are predominantly sunny, with an estimated total of around 246 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Average water temperature in September
With water at 29°C (84°F), conditions are warm and calm. Perfect for those who like tropical water temperatures, though it won't cool you down much.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, November and December typically offer the best weather for Port-au-Prince.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Haiti, check out our Port-au-Prince's climate page.
Port-au-Prince Temperature in September
Min Temperature
22°C (72°F)
Max Temperature
30°C (86°F)
Water Temperature
29°C (84°F)
Chance of Rain
48%
Precipitation
199 mm (7.8 in)
Rainy days
14 days
Humidity
54%
Sunshine
246 hours
Percentage Sunshine
Historical weather for Port-au-Prince in September
Browse day-by-day weather records for Port-au-Prince spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Port-au-Prince historical weather extremes in September
Based on weather observations in Port-au-Prince between 2005 and 2025, these are the recorded extremes during September.
- The hottest September day on record in Port-au-Prince reached 37°C (99°F) (September 15, 2025).
- On September 2, 2008, Port-au-Prince saw its coldest September day with temperatures maxing out at 24°C (75°F).
- Nighttime temperatures dropped to 20°C (68°F) on September 8, 2007, marking the coldest September night on record.
Best Places in Haiti in September
Find out more about the weather in Haiti and which places have the best travel conditions in this month. See all of Haiti in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Port-au-Prince in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. With water temperatures around 29°C (84°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Port-au-Prince in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Haiti, check out our Port-au-Prince's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Port-au-Prince climate overview or explore weather in Haiti.
