Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
An average high-temperature of a still warm 29.3°C (84.7°F) marks September, exhibiting a close resemblance to the conditions in August. During the nights of September, the average low-temperature holds at a still warm 25.3°C (77.5°F).Heat index
September's average heat index is appraised at a very hot 35°C (95°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.The standards for the heat index are set for locations in shade and under light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
In Chavannes, the average relative humidity in September is 76%.Rainfall
In Chavannes, Haiti, in September, it is raining for 19.3 days, with typically 71mm (2.8") of accumulated precipitation. Throughout the year, in Chavannes, there are 196.7 rainfall days, and 531mm (20.91") of precipitation is accumulated.Daylight
In Chavannes, the average length of the day in September is 12h and 14min.On the first day of September, sunrise is at 06:37 and sunset at 19:05. On the last day of the month, sunrise is at 06:41 and sunset at 18:40 EDT.
Sunshine
The average sunshine in September is 9.9h.UV index
January, March through October, with an average maximum UV index of 7, are months with the highest UV index in Chavannes. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 7 in September translates into the following instructions:
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. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
How hot is September in Chavannes?
What is the average humidity in September in Chavannes?
How many days does it rain in September in Chavannes?
What is the average length of the day in September in Chavannes?
When is the sunrise / sunset in September in Chavannes?
How many hours of sunshine does Chavannes have in September?
What are the months with the highest UV index in Chavannes?
How high is the UV index in September in Chavannes?
Average temperature in September
Chavannes, Haiti
- Average high temperature in September: 29.3°C
The warmest month (with the highest average high temperature) is August (29.7°C).
The months with the lowest average high temperature are January, February and March (27.2°C).
- Average low temperature in September: 25.3°C
The month with the highest average low temperature is September (25.3°C).
The coldest month (with the lowest average low temperature) is January (22.3°C).
Average pressure in September
Chavannes, Haiti
- Average pressure in September: 1012.9mbar
The month with the highest atmospheric pressure is January (1016mbar).
The month with the lowest atmospheric pressure is October (1012.2mbar).
Average wind speed in September
Chavannes, Haiti
- Average wind speed in September: 10.2km/h
The windiest month (with the highest average wind speed) is June (15.3km/h).
The calmest month (with the lowest average wind speed) is November (8.8km/h).
Average humidity in September
Chavannes, Haiti
- Average humidity in September: 76%
The month with the highest relative humidity is October (77%).
The month with the lowest relative humidity is February (72%).
Average rainfall in September
Chavannes, Haiti
- Average rainfall in September: 71mm
The wettest month (with the highest rainfall) is October (75mm).
The driest month (with the least rainfall) is January (10mm).
Average rainfall days in September
Chavannes, Haiti
- Average rainfall days in September: 19.3 days
The month with the highest number of rainy days is October (20.7 days).
The month with the least rainy days is January (9.3 days).
Average daylight in September /
Average sunshine in September
Chavannes, Haiti
- Average daylight in September: 12h and 1min
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: 9h and 5min
The months with the most sunshine are May, June, July and August (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 7h and 24min).
Average sunshine days in September
Chavannes, Haiti
- Average sunshine days in September: 7.9 days
The month with the most sunshine days is December (18.7 days).
The month with the least sunshine days is April (6.7 days).
Average UV index in September
Chavannes, Haiti
- Average UV index in September: 7
The months with the highest UV index are January, March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are February, November and December (UV index 6).
Average cloud cover in September
Chavannes, Haiti
- Average cloud cover in September: 21
The month with the most cloud cover is April (Cloud cover 30).
The month with the least cloud cover is December (Cloud cover 16).
Average visibility in September
Chavannes, 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).
Chavannes, Haiti
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