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 sea temperature 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
September
Weather in September
Temperature
Mahaut's warmest weather arrives in September, when temperatures average a high of 29°C (84.2°F) and a low of 27.7°C (81.9°F).Heat index
During September, the heat index is computed to be a hot 34°C (93.2°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
In September, the average relative humidity is 76%.Rainfall
In Mahaut, in September, during 21.5 rainfall days, 86mm (3.39") of precipitation is typically accumulated. In Mahaut, during the entire year, the rain falls for 261.3 days and collects up to 724mm (28.5") of precipitation.Sea temperature
The month with the warmest seawater is September, with an average sea temperature of 29.4°C (84.9°F).Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) in water are ideal for swimming, diving, and other activities, providing enjoyment and comfort for extended durations.
Daylight
In September, the average length of the day is 12h and 13min.On the first day of the month, sunrise is at 05:53 and sunset at 18:17. On the last day of September, sunrise is at 05:55 and sunset at 17:55 AST.
Sunshine
In Mahaut, the average sunshine in September is 10.3h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. 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. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Attention! UV strength is notably upped by the reflection of sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest?
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
What month is the sea warmest?
How warm is the water in September?
How many hours of daylight does Mahaut have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Mahaut have in September?
When is the highest UV index?
What are the months with the lowest UV index?
How high is the UV index in September?
Average temperature in September
Mahaut, 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
Mahaut, 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
Mahaut, 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
Mahaut, 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
Mahaut, 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
Mahaut, 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 sea temperature in September
Mahaut, Dominica
- Average sea temperature in September: 29.4°C
The best month for swimming (with the highest average sea temperature) is September (29.4°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).
Average daylight in September /
Average sunshine in September
Mahaut, 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
Mahaut, 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
Mahaut, 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
Mahaut, 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
Mahaut, 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).
