July weather forecastFrederiksted, VI

July
Weather in July
July sees Frederiksted sweltering under temperatures between 83.5°F (28.6°C) and 81.7°F (27.6°C), making it one of the warmest months of the year. Over 13 hours of daylight is experienced alongside an average of 10.3 hours of sunshine. It's a month with noticeable wind gusts, providing a relief from the heat. The island city witnesses a further escalation in rainfall amounting to 2.56" (65mm).Temperature
The onset of July marks an average high-temperature of a still moderately hot 83.5°F (28.6°C), hardly differing from June's 82.9°F (28.3°C). In Frederiksted, July's low temperatures hover around a still warm 81.7°F (27.6°C), reflecting a minor decrease from the daytime highs.Heat index
In July, the heat index is calculated to be a tropical 91.4°F (33°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
May through August, with an average relative humidity of 78%, are the most humid months.Rainfall
In Frederiksted, in July, during 22.6 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 254.5 rainfall days, and 29.49" (749mm) of precipitation is accumulated.Daylight
The average length of the day in July is 13h and 4min.On the first day of July, sunrise is at 5:48 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 6:53 pm AST.
Sunshine
In Frederiksted, the average sunshine in July is 10.3h.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 estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In July, a daily UV index of 7 turns into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Frederiksted, VI
- Average high temperature in July: 83.5°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 July: 81.7°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 July
Frederiksted, VI
- Average pressure in July: 30"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 July
Frederiksted, VI
- Average wind speed in July: 14.7mph
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 July
Frederiksted, VI
- Average humidity in July: 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 July
Frederiksted, VI
- Average rainfall in July: 2.56"
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 July
Frederiksted, VI
- Average rainfall days in July: 22.6 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 July /
Average sunshine in July
Frederiksted, VI
- Average daylight in July: 13h and 6min
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 July: 10h and 18min
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 July
Frederiksted, VI
- Average sunshine days in July: 2.6 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 July
Frederiksted, VI
- Average UV index in July: 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 July
Frederiksted, VI
- Average cloud cover in July: 40
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 July
Frederiksted, VI
- Average visibility in July: 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).





