September weather forecast
Road Town, British Virgin Islands

A view of the Road Town in the British Virgin Islands from the Mount Sage National Park in Tortola
A view of the Road Town in the British Virgin Islands from the Mount Sage National Park in Tortola

Weather in September

September, the first month of the autumn, in Road Town, is still a warm month, with average temperature varying between 28.9°C (84°F) and 27.7°C (81.9°F).

Temperature

With an average high-temperature of 28.9°C (84°F) and an average low-temperature of 27.7°C (81.9°F), September is the warmest month.

Heat index

The average heat index in September is estimated at a hot 33.8°C (92.8°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, metabolic differences, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in September is 77%.

Rainfall

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

Daylight

In September, the average length of the day in Road Town is 12.2h.

Sunshine

In September, the average sunshine in Road Town is 8.6h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Road Town. 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 threat to health from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Road Town?

September is the warmest month in Road Town, with an average high-temperature of 28.9°C (84°F) and an average low-temperature of 27.7°C (81.9°F).

What is the temperature in September in Road Town?

In Road Town, British Virgin Islands, in September, the average high-temperature is 28.9°C (84°F), and the average low-temperature is 27.7°C (81.9°F). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is estimated at 33.8°C (92.8°F).

What is the average humidity in September in Road Town?

In Road Town, British Virgin Islands, the average relative humidity in September is 77%.

How many days does it rain in September in Road Town?

In Road Town, British Virgin Islands, during September, the rain falls for 23.4 days and regularly aggregates up to 110mm (4.33") of precipitation.

What is the average length of the day in September in Road Town?

In Road Town, the average length of the day in September is 12.2h.

How many hours of sunshine does Road Town have in September?

In September, the average sunshine in Road Town, British Virgin Islands, is 8.6h.

What are the months with the highest UV index in Road Town?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Road Town.

What is the month with the lowest UV index in Road Town?

January through December, with an average maximum UV index of 7, are months with the lowest UV index in Road Town, British Virgin Islands.

How high is the UV index in September in Road Town?

In Road Town, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to the Sun's UV rays.

Average temperature in September
Road Town, British Virgin Islands

Average temperature in September - Road 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).
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).

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Average pressure in September
Road Town, British Virgin Islands

Average pressure in September - Road 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).

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Average wind speed in September
Road Town, British Virgin Islands

Average wind speed in September - Road 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).

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Average humidity in September
Road Town, British Virgin Islands

Average humidity in September - Road Town, British Virgin Islands
  • Average humidity in September: 77%

Months with the highest relative humidity are June and July (79%).
Months with the lowest relative humidity are January, February, March, October and December (75%).

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Average rainfall in September
Road Town, British Virgin Islands

Average rainfall in September - Road 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).

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Average rainfall days in September
Road Town, British Virgin Islands

Average rainfall days in September - Road 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).

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Average daylight in September /
Average sunshine in September
Road Town, British Virgin Islands

Average daylight in September / Average sunshine in September - Road Town, British Virgin Islands
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 13.2h).
The month with the shortest days is December (Average daylight: 11h).

  • Average sunshine in September: 8.6h

The month with the most sunshine is June (Average sunshine: 10.4h).
The month with the least sunshine is December (Average sunshine: 6.3h).

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Average sunshine days in September
Road Town, British Virgin Islands

Average sunshine days in September - Road 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).

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Average UV index in September
Road Town, British Virgin Islands

Average UV index in September - Road Town, British Virgin Islands
  • Average UV index in September: 7

Months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

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Average cloud cover in September
Road Town, British Virgin Islands

Average cloud cover in September - Road Town, British Virgin Islands
  • Average cloud cover in September: 37

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).

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Average visibility in September
Road Town, British Virgin Islands

Average visibility in September - Road Town, British Virgin Islands
  • Average visibility in September: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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