August weather forecastFrederiksted, VI
August
Weather in August
In August, Frederiksted experiences the sweltering heat with the mercury soaring between 83.8°F (28.8°C) and 82°F (27.8°C). This month sees longer hours of daylight and persistent rainfall dispersed over 24.7 days, the highest in the year. Despite the temperature and rainfall, the daily sunbathing remains almost constant at 8.8 hours. The breezy conditions continue to offer comfort, making the weather tolerable for residents and tourists.Temperature
In August, Frederiksted notes an average high-temperature of a still moderately hot 83.8°F (28.8°C), hardly different from the preceding month. Frederiksted consistently logs a low temperature averaging a still warm 82°F (27.8°C) during August, a modest drop from daytime temperatures.Heat index
The average heat index in August is calculated to be a hot 93.2°F (34°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
The months with the highest humidity are May through August, with an average relative humidity of 78%.Rainfall
August is the month with the most rainfall. Rain falls for 24.7 days and accumulates 4.17" (106mm) of precipitation.Daylight
The average length of the day in August is 12h and 43min.On the first day of the month, sunrise is at 5:58 am and sunset at 6:53 pm. On the last day of August, sunrise is at 6:05 am and sunset at 6:33 pm AST.
Sunshine
In Frederiksted, United States Virgin Islands, the average sunshine in August is 8.8h.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 value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 7 in August translates into the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. 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. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Frederiksted, VI
- Average high temperature in August: 83.8°F
The warmest months (with the highest average high temperature) are September and October (84.2°F).
The month with the lowest average high temperature is March (78.8°F).
- Average low temperature in August: 82°F
The month with the highest average low temperature is October (82.2°F).
The coldest month (with the lowest average low temperature) is March (76.6°F).
Average pressure in August
Frederiksted, VI
- Average pressure in August: 29.96"Hg
The months with the highest atmospheric pressure are January, February and June (30.01"Hg).
The months with the lowest atmospheric pressure are October and November (29.9"Hg).
Average wind speed in August
Frederiksted, VI
- Average wind speed in August: 13.9mph
The windiest month (with the highest average wind speed) is July (14.7mph).
The calmest month (with the lowest average wind speed) is October (11mph).
Average humidity in August
Frederiksted, VI
- Average humidity in August: 78%
The months with the highest relative humidity are May, June, July and August (78%).
The months with the lowest relative humidity are January, February, March and December (75%).
Average rainfall in August
Frederiksted, VI
- Average rainfall in August: 4.17"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in August
Frederiksted, VI
- Average rainfall days in August: 24.7 days
The month with the highest number of rainy days is August (24.7 days).
The month with the least rainy days is February (16.7 days).
Average daylight in August /
Average sunshine in August
Frederiksted, VI
- Average daylight in August: 12h and 42min
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 6min).
- Average sunshine in August: 8h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in August
Frederiksted, VI
- Average sunshine days in August: 1.8 days
The month with the most sunshine days is March (7.6 days).
The month with the least sunshine days is August (1.8 days).
Average UV index in August
Frederiksted, VI
- Average UV index in August: 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 August
Frederiksted, VI
- Average cloud cover in August: 39
The months with the most cloud cover are May and July (Cloud cover 40).
The month with the least cloud cover is February (Cloud cover 33).
Average visibility in August
Frederiksted, VI
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
