September weather forecastCarrefour, Haiti
September
Weather in September
A record high is set in September as the rainfall hits 135mm (5.31"), marking the season shift from summer to autumn. The temperature decrease marginally but the humidity index goes higher, contributing to a dense atmosphere in Carrefour. Despite the increased cloud coverage, the UV index remains unchanged.Temperature
Entering September, Carrefour's average high-temperature reads a warm 29.8°C (85.6°F), indicating a close resemblance to the previous month's climate. During the month of September, Carrefour anticipates a mean low-temperature of 21.3°C (70.3°F).Heat index
The heat index in September is estimated at a sweltering 36°C (96.8°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.When referencing the heat index, its values are suitable for shady environments and light breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In September, the average relative humidity in Carrefour is 77%.Rainfall
In Carrefour, in September, during 22.4 rainfall days, 135mm (5.31") of precipitation is typically accumulated. In Carrefour, Haiti, during the entire year, the rain falls for 227.4 days and collects up to 904mm (35.59") of precipitation.Sea temperature
The month with the warmest seawater in Carrefour, Haiti, is September, with an average sea temperature of 29.8°C (85.6°F).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 Carrefour is 12h and 14min.On the first day of the month, sunrise is at 06:35 and sunset at 19:03. On the last day of September, sunrise is at 06:40 and sunset at 18:38 EDT.
Sunshine
The average sunshine in September is 9.6h.UV index
January through May, July through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 6 suggests this advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. Stay sun-safe with clothing that is both closely woven and worn loosely. Notice! The Sun's UV exposure elevates with sand and water reflections.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Carrefour, Haiti
- Average high temperature in September: 29.8°C
The warmest month (with the highest average high temperature) is August (30.9°C).
The month with the lowest average high temperature is January (27.6°C).
- Average low temperature in September: 21.3°C
The months with the highest average low temperature are August and September (21.3°C).
The coldest month (with the lowest average low temperature) is January (18.2°C).
Average pressure in September
Carrefour, Haiti
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is October (1012.5mbar).
Average wind speed in September
Carrefour, Haiti
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is June (9.2km/h).
The calmest month (with the lowest average wind speed) is September (6.5km/h).
Average humidity in September
Carrefour, Haiti
- Average humidity in September: 77%
The month with the highest relative humidity is November (80%).
The month with the lowest relative humidity is February (72%).
Average rainfall in September
Carrefour, Haiti
- Average rainfall in September: 135mm
The wettest month (with the highest rainfall) is May (141mm).
The driest month (with the least rainfall) is January (12mm).
Average rainfall days in September
Carrefour, Haiti
- Average rainfall days in September: 22.4 days
The months with the highest number of rainy days are April and October (24.4 days).
The month with the least rainy days is January (9.9 days).
Average sea temperature in September
Carrefour, Haiti
- Average sea temperature in September: 29.8°C
The best month for swimming (with the highest average sea temperature) is September (29.8°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).
Average daylight in September /
Average sunshine in September
Carrefour, Haiti
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 7h and 12min).
Average sunshine days in September
Carrefour, Haiti
- Average sunshine days in September: 4.7 days
The month with the most sunshine days is December (19 days).
The month with the least sunshine days is April (3.3 days).
Average UV index in September
Carrefour, Haiti
- Average UV index in September: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
Carrefour, Haiti
- Average cloud cover in September: 27
The month with the most cloud cover is April (Cloud cover 35).
The month with the least cloud cover is December (Cloud cover 21).
Average visibility in September
Carrefour, Haiti
- Average visibility in September: 9km
The months with the highest visibility are February, March and June (10km).
The months with the lowest visibility are January, April, May, July, August, September, October, November and December (9km).





