September weather forecastWesley Will, British Virgin Islands
September
Weather in September
Retreating from the height of summer, September brings a slight dip in temperature. Sunlight hours gradually reduce as the city slowly approaches autumn. Despite the receding heat, the sea temperature remains inviting for water activities. Inhabitants continue to experience high humidity, though wind offers a reprieve. September's climatological spotlight shines on the high precipitation of 110mm (4.33"), continuing the city's wet trend.Temperature
Wesley Will experiences its highest temperatures in September, with an average peak of 28.9°C (84°F) and a low of 27.7°C (81.9°F).Heat index
The average heat index in September is appraised at a hot 34°C (93.2°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
In September, the average relative humidity in Wesley Will is 77%.Rainfall
In September, the rain falls for 23.4 days. Throughout September, 110mm (4.33") of precipitation is accumulated. Throughout the year, there are 262.1 rainfall days, and 835mm (32.87") of precipitation is accumulated.Sea temperature
September and October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.Note: Swimming, diving, and other water-related activities in temperatures between 25°C (77°F) and 29°C (84.2°F) are considered highly enjoyable and satisfying for longer durations without uneasiness.
Daylight
In Wesley Will, the average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 06:03 and sunset at 18:32. On the last day of September, sunrise is at 06:08 and sunset at 18:07 AST.
Sunshine
In Wesley Will, the average sunshine in September is 8.6h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 7 translates into these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Wesley Will, British Virgin Islands
- Average high temperature in September: 28.9°C
The warmest month (with the highest average high temperature) is September (28.9°C).
The months with the lowest average high temperature are February and March (25.9°C).
- Average low temperature in September: 27.7°C
The month with the highest average low temperature is October (27.8°C).
The coldest month (with the lowest average low temperature) is March (24.7°C).
Average pressure in September
Wesley Will, British Virgin Islands
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is January (1016.7mbar).
The month with the lowest atmospheric pressure is October (1012.7mbar).
Average wind speed in September
Wesley Will, British Virgin Islands
- Average wind speed in September: 19.1km/h
The windiest month (with the highest average wind speed) is July (24.4km/h).
The calmest month (with the lowest average wind speed) is October (18.2km/h).
Average humidity in September
Wesley Will, British Virgin Islands
- Average humidity in September: 77%
The months with the highest relative humidity are June and July (79%).
The months with the lowest relative humidity are January, February, March, October and December (75%).
Average rainfall in September
Wesley Will, British Virgin Islands
- Average rainfall in September: 110mm
The wettest months (with the highest rainfall) are August and October (113mm).
The driest month (with the least rainfall) is February (28mm).
Average rainfall days in September
Wesley Will, British Virgin Islands
- Average rainfall days in September: 23.4 days
The month with the highest number of rainy days is November (24.9 days).
The month with the least rainy days is February (17.5 days).
Average sea temperature in September
Wesley Will, British Virgin Islands
- Average sea temperature in September: 29°C
The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (26°C).
Average daylight in September /
Average sunshine in September
Wesley Will, British Virgin Islands
- 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 0min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Wesley Will, British Virgin Islands
- Average sunshine days in September: 3.5 days
The month with the most sunshine days is February (7.1 days).
The month with the least sunshine days is August (1.7 days).
Average UV index in September
Wesley Will, British Virgin Islands
- 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
Wesley Will, British Virgin Islands
- Average cloud cover in September: 37
The months with the most cloud cover are May, July and August (Cloud cover 41).
The month with the least cloud cover is February (Cloud cover 34).
Average visibility in September
Wesley Will, British Virgin Islands
- 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).
