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
The warmest period tends to be September, when average temperatures fluctuate between a high of 29°C (84.2°F) and a low of 27.7°C (81.9°F).Heat index
For most parts of September, the heat index is computed to be a tropical 34°C (93.2°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
In Pont Cassé, Dominica, the average relative humidity in September is 76%.Rainfall
In Pont Cassé, Dominica, in September, during 21.5 rainfall days, 86mm (3.39") of precipitation is typically accumulated. Throughout the year, there are 261.3 rainfall days, and 724mm (28.5") of precipitation is accumulated.Daylight
In Pont Cassé, the average length of the day in September is 12h and 13min.On the first day of September, sunrise is at 05:52 and sunset at 18:17. On the last day of the month, sunrise is at 05:55 and sunset at 17:55 AST.
Sunshine
In September, the average sunshine is 10.3h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Pont Cassé, Dominica. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Pont Cassé. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 7 during September translates into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year in Pont Cassé?
How hot is September in Pont Cassé?
What is the average humidity in September in Pont Cassé?
How much does it rain in Pont Cassé in September?
How many hours of daylight does Pont Cassé have in September?
What time are sunrise and sunset in September in Pont Cassé?
How many hours of sunshine does Pont Cassé have in September?
What is the month with the highest UV index in Pont Cassé?
What are the months with the lowest UV index in Pont Cassé?
How high is the UV index in September in Pont Cassé?
Average temperature in September
Pont Cassé, Dominica
- Average high temperature in September: 29°C
The warmest month (with the highest average high temperature) is September (29°C).
The months with the lowest average high temperature are February and March (26.4°C).
- Average low temperature in September: 27.7°C
The month with the highest average low temperature is October (27.8°C).
The coldest months (with the lowest average low temperature) are February and March (25.3°C).
Average pressure in September
Pont Cassé, 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 (1012mbar).
Average wind speed in September
Pont Cassé, Dominica
- Average wind speed in September: 20.2km/h
The windiest month (with the highest average wind speed) is January (27.1km/h).
The calmest months (with the lowest average wind speed) are September and October (20.2km/h).
Average humidity in September
Pont Cassé, Dominica
- Average humidity in September: 76%
The months with the highest relative humidity are May, June, July, August and November (77%).
The month with the lowest relative humidity is February (74%).
Average rainfall in September
Pont Cassé, Dominica
- Average rainfall in September: 86mm
The wettest month (with the highest rainfall) is October (91mm).
The driest month (with the least rainfall) is February (26mm).
Average rainfall days in September
Pont Cassé, Dominica
- Average rainfall days in September: 21.5 days
The month with the highest number of rainy days is July (23.8 days).
The month with the least rainy days is March (18.1 days).
Average daylight in September /
Average sunshine in September
Pont Cassé, 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 2min
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 30min).
Average sunshine days in September
Pont Cassé, Dominica
- Average sunshine days in September: 6.1 days
The month with the most sunshine days is September (6.1 days).
The months with the least sunshine days are June and July (1.3 days).
Average UV index in September
Pont Cassé, 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
Pont Cassé, Dominica
- Average cloud cover in September: 37
The months with the most cloud cover are June and July (Cloud cover 45).
The month with the least cloud cover is February (Cloud cover 34).
Average visibility in September
Pont Cassé, 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).
Pont Cassé, Dominica
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