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
Grand Fond sees the highest average temperatures during the months of August through October, peaking at 28.6°C (83.5°F).Heat index
September's average heat index is estimated at a tropical 33°C (91.4°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Humidity
The average relative humidity in September in Grand Fond, Dominica, is 76%.Rainfall
In September, in Grand Fond, the rain falls for 19.7 days. Throughout September, 70mm (2.76") of precipitation is accumulated. In Grand Fond, during the entire year, the rain falls for 221.9 days and collects up to 570mm (22.44") of precipitation.Daylight
In September, the average length of the day in Grand Fond is 12h and 13min.On the first day of the month, sunrise is at 05:52 and sunset at 18:17. On the last day of September, in Grand Fond, sunrise is at 05:54 and sunset at 17:54 AST.
Sunshine
In Grand Fond, Dominica, the average sunshine in September is 10.2h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Grand Fond. The months with the lowest UV index in Grand Fond are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 7 during September, leads to the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What are the warmest months in Grand Fond?
How hot is it in Grand Fond in September?
What is the average humidity in September in Grand Fond?
How much does it rain in Grand Fond in September?
How many hours of daylight does Grand Fond have in September?
When are sunrise and sunset in September in Grand Fond?
How many hours of sunshine does Grand Fond have in September?
What are the months with the highest UV index in Grand Fond?
What is the month with the lowest UV index in Grand Fond?
What is the UV index reading in September in Grand Fond?
Average temperature in September
Grand Fond, Dominica
- Average high temperature in September: 28.6°C
The warmest months (with the highest average high temperature) are August, September and October (28.6°C).
The months with the lowest average high temperature are February and March (26.3°C).
- Average low temperature in September: 27.1°C
The month with the highest average low temperature is September (27.1°C).
The coldest month (with the lowest average low temperature) is March (24.1°C).
Average pressure in September
Grand Fond, Dominica
- Average pressure in September: 1012.9mbar
The month with the highest atmospheric pressure is June (1015.6mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).
Average wind speed in September
Grand Fond, Dominica
- Average wind speed in September: 20.4km/h
The windiest month (with the highest average wind speed) is January (27.2km/h).
The calmest month (with the lowest average wind speed) is October (20.2km/h).
Average humidity in September
Grand Fond, Dominica
- Average humidity in September: 76%
The months with the highest relative humidity are July and August (78%).
The months with the lowest relative humidity are January, February and March (75%).
Average rainfall in September
Grand Fond, Dominica
- Average rainfall in September: 70mm
The wettest month (with the highest rainfall) is August (78mm).
The driest month (with the least rainfall) is February (20mm).
Average rainfall days in September
Grand Fond, Dominica
- Average rainfall days in September: 19.7 days
The month with the highest number of rainy days is October (21.5 days).
The month with the least rainy days is June (14.8 days).
Average daylight in September /
Average sunshine in September
Grand Fond, Dominica
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in September
Grand Fond, Dominica
- Average sunshine days in September: 7.3 days
The month with the most sunshine days is March (9.8 days).
The month with the least sunshine days is April (5.9 days).
Average UV index in September
Grand Fond, Dominica
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Grand Fond, Dominica
- Average cloud cover in September: 36
The months with the most cloud cover are June and July (Cloud cover 44).
The month with the least cloud cover is February (Cloud cover 33).
Average visibility in September
Grand Fond, Dominica
- 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).
Grand Fond, Dominica
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