September weather forecast
Spanish Town, British Virgin Islands

September

Weather in September

The weather in September closely mirrors that of August with temperatures swirling between 27.7°C (81.9°F) to 28.9°C (84°F). Marked reduction in wind speed provides soothing calmness to the coastal town. Additionally, the onset of fall does not affect the abundant sunshine hours, ensuring no dearth of Vitamin D for the vacationers. The noticeably high water vapor content in the air yields a vibrant ecological scene. The ample cloud cover augments the landscape's aesthetic appeal, thereby enhancing Spanish Town's scenic beauty.

Temperature

In Spanish Town, the highest average temperatures are observed in September, with a high of 28.9°C (84°F) and a low of 27.7°C (81.9°F).

Heat index

In September, the average heat index is estimated at a hot 34°C (93.2°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance 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

In September, the average relative humidity is 77%.

Rainfall

In September, the rain falls for 23.4 days. Throughout September, 110mm (4.33") of precipitation is accumulated. In Spanish Town, during the entire year, the rain falls for 262.1 days and collects up to 835mm (32.87") of precipitation.

Daylight

The average length of the day in September is 12h and 14min.
On the first day of September, sunrise is at 06:03 and sunset at 18:31. On the last day of the month, sunrise is at 06:08 and sunset at 18:06 AST.

Sunshine

The average sunshine in September is 8.6h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Spanish Town. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 7 during September leads to these advisories:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

What month is the hottest?
September temperatures tend to peak at an average high of 28.9°C (84°F) and dip to a low of 27.7°C (81.9°F).
Is it hot during September?
September temperatures vary between a high-temperature of 28.9°C (84°F) and a low-temperature of 27.7°C (81.9°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is estimated at 34°C (93.2°F).
What is the average humidity in September?
In September, the average relative humidity is 77%.
How many days does it rain in September?
In Spanish Town, in September, during 23.4 rainfall days, 110mm (4.33") of precipitation is typically accumulated.
What is the average length of the day in September?
The average day length in September is 12h and 14min.
What time are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 06:03 and sunset at 18:31. On the last day of the month, sunrise is at 06:08 and sunset at 18:06 AST.
How long on average sun shines in September?
In Spanish Town, British Virgin Islands, the average sunshine duration in September is 8.6h.
What is the month with the highest UV index?
The months with the highest UV index are January through December, with an average maximum UV index of 7.
What is the month with the lowest UV index?
January through December, with an average maximum UV index of 7, are months with the lowest UV index.
How high is the UV index in September?
In Spanish Town, British Virgin Islands, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Spanish Town, 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
Spanish Town, 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
Spanish Town, 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
Spanish Town, 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
Spanish Town, 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
Spanish Town, 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 daylight in September /
Average sunshine in September
Spanish Town, British Virgin Islands
  • 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 0min).

  • Average sunshine in September: 8h and 4min

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
Spanish Town, 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
Spanish Town, 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
Spanish Town, 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
Spanish Town, 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).

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