September weather forecast
Cap-Haitien, Haiti

September in Cap-Haitien sees a rise in rainfall to 152mm (5.98") while daylight and sunshine hours continue to decline slightly. The coastal city now gradually transitions towards the end of summer, with sea temperatures beginning their descent. Leading into October, rain conditions intensifies and the daylight duration shortens further. Despite these changes, September retains the warm sea and air temperatures, reflecting lingering traces of summer charm. The harmonious relationship between rain, sun, and warmth make this month an enduring favorite of both tourists and locals.

Temperature

Cap-Haitien's warmest period falls in June through September, when the average high-temperatures ascend to 32°C (89.6°F).

Rainfall

In September, the rain falls for 15 days. Throughout September, 152mm (5.98") of precipitation is accumulated. In Cap-Haitien, during the entire year, the rain falls for 142 days and collects up to 1698mm (66.85") of precipitation.

Sea temperature

With an average sea temperature of 29.6°C (85.3°F), September is the month with the warmest seawater.
Note: Water activities including swimming and diving at temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed very pleasurable and enjoyable for extended periods, devoid of discomfort.

Daylight

In September, the average length of the day in Cap-Haitien, Haiti, is 12h and 15min.
On the first day of September in Cap-Haitien, sunrise is at 06:33 and sunset at 19:03. On the last day of the month, sunrise is at 06:39 and sunset at 18:37 EDT.

Sunshine

In Cap-Haitien, the average sunshine in September is 7h.

UV index

In Cap-Haitien, the average daily maximum UV index in September is 11. A UV Index value of 11, and more, symbolizes an extreme health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 11 in September interprets into the following recommendations:
Employ every crucial safety step. Those with fair skin could experience burns in a matter of minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Even on overcast days, a sunscreen with a sun protection factor of no less than 30 should be generously applied and reapplied, particularly after swimming or outdoor activities. Beware! Reflections from sand and water can intensify the Sun's UV radiation.