September weather forecastAquin, Haiti
September
Weather in September
As September commences, the weather conditions in Aquin begin to tone down, yet remaining fairly hot. The average high temperature drops slightly to 29.1°C (84.4°F), whereas the average low remains the same as in August at 26.1°C (79°F). An increase in total rainfall is observed, reaching about 70mm (2.76") over about 20.5 days. Despite being a month heavy on precipitation, there is still a significant amount of daylight making it a good time for sightseeing. Visitors enjoy tranquil sea conditions perfect for a dip in the ocean.Temperature
Aquin ushers in September with an average high-temperature of a still moderately hot 29.1°C (84.4°F), showing a close resemblance to the previous month. September nights in Aquin witness a mild cool down to an average low of 26.1°C (79°F).Heat index
September's heat index is estimated at a sweltering 35°C (95°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In September, the average relative humidity in Aquin, Haiti, is 78%.Rainfall
In September, the rain falls for 20.5 days. Throughout September, 70mm (2.76") of precipitation is accumulated. Throughout the year, there are 234.5 rainfall days, and 663mm (26.1") of precipitation is accumulated.Sea temperature
September is the month with the warmest seawater in Aquin, with an average sea temperature of 29.8°C (85.6°F).Note: Water surface temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal and extremely delightful for long-lasting pleasure in any water activity.
Daylight
The average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 06:39 and sunset at 19:07. On the last day of September, sunrise is at 06:43 and sunset at 18:42 EDT.
Sunshine
In September, the average sunshine is 10.1h.UV index
January, February, April through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, a daily UV index of 7 turns into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Watch out! Reflections from sand and water can surge UV radiation exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Aquin, Haiti
- Average high temperature in September: 29.1°C
The warmest month (with the highest average high temperature) is August (29.3°C).
The months with the lowest average high temperature are January and March (26.8°C).
- Average low temperature in September: 26.1°C
The month with the highest average low temperature is August (26.2°C).
The coldest month (with the lowest average low temperature) is March (23.4°C).
Average pressure in September
Aquin, Haiti
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is January (1015.6mbar).
The month with the lowest atmospheric pressure is October (1011.7mbar).
Average wind speed in September
Aquin, Haiti
- Average wind speed in September: 12.4km/h
The windiest month (with the highest average wind speed) is June (18.9km/h).
The calmest month (with the lowest average wind speed) is November (11.3km/h).
Average humidity in September
Aquin, Haiti
- Average humidity in September: 78%
The months with the highest relative humidity are May, June and July (79%).
The months with the lowest relative humidity are January, February, March and December (76%).
Average rainfall in September
Aquin, Haiti
- Average rainfall in September: 70mm
The wettest month (with the highest rainfall) is October (95mm).
The driest month (with the least rainfall) is January (26mm).
Average rainfall days in September
Aquin, Haiti
- Average rainfall days in September: 20.5 days
The month with the highest number of rainy days is May (23.7 days).
The months with the least rainy days are June and December (15.2 days).
Average sea temperature in September
Aquin, 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 (26.9°C).
Average daylight in September /
Average sunshine in September
Aquin, 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 6min).
- Average sunshine in September: 10h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 12min).
Average sunshine days in September
Aquin, Haiti
- Average sunshine days in September: 5.3 days
The month with the most sunshine days is June (9.6 days).
The month with the least sunshine days is April (2.8 days).
Average UV index in September
Aquin, Haiti
- Average UV index in September: 7
The months with the highest UV index are January, February, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is March (UV index 6).
Average cloud cover in September
Aquin, Haiti
- Average cloud cover in September: 23
The months with the most cloud cover are April and May (Cloud cover 29).
The months with the least cloud cover are January and December (Cloud cover 20).
Average visibility in September
Aquin, Haiti
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





