July weather forecast
Charlotte Amalie, VI

The Charlotte Amalie Harbour within the United States Virgin Islands
The Charlotte Amalie Harbour within the United States Virgin Islands

Weather in July

July, like June, in Charlotte Amalie, United States Virgin Islands, is another warm summer month, with an average temperature varying between 82.9°F (28.3°C) and 80.2°F (26.8°C).

Temperature

In July, the average high-temperature is essentially the same as in June - a still moderately hot 82.9°F (28.3°C). The average low-temperature, in Charlotte Amalie, is 80.2°F (26.8°C).

Heat index

In July, the average heat index is computed to be a hot 91.4°F (33°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like pregnancy, wind, differences in body mass, height, and shape, and activity influence one's weather impression. 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. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

May through August, with an average relative humidity of 78%, are the most humid months.

Rainfall

In Charlotte Amalie, it is raining for 21.7 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, there are 253.1 rainfall days, and 33.27" (845mm) of precipitation is accumulated.

Ocean temperature

In Charlotte Amalie, United States Virgin Islands, the average seawater temperature in July is 83.7°F (28.7°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In Charlotte Amalie, the average length of the day in July is 13h and 7min.
On the first day of the month, sunrise is at 5:47 am and sunset at 7:00 pm. On the last day of July, in Charlotte Amalie, sunrise is at 5:57 am and sunset at 6:54 pm AST.

Sunshine

In Charlotte Amalie, the average sunshine in July is 10.3h.

UV index

The months with the highest UV index in Charlotte Amalie 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 Charlotte Amalie. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In July, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the temperature in July in Charlotte Amalie?

In July, the average high-temperature is 82.9°F (28.3°C), and the average low-temperature is 80.2°F (26.8°C). in July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 91.4°F (33°C).

What is the most humid month in Charlotte Amalie?

May through August, with an average relative humidity of 78%, are most humid months in Charlotte Amalie, United States Virgin Islands.

What is the average humidity in July in Charlotte Amalie?

In Charlotte Amalie, United States Virgin Islands, the average relative humidity in July is 78%.

How much does it rain in Charlotte Amalie in July?

In Charlotte Amalie, United States Virgin Islands, in July, it is raining for 21.7 days, with typically 2.91" (74mm) of accumulated precipitation.

What is the water temperature in July in Charlotte Amalie?

In July, the average ocean temperature in Charlotte Amalie is 83.7°F (28.7°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in July in Charlotte Amalie?

In July, the average day length in Charlotte Amalie, United States Virgin Islands, is 13h and 7min.

When are sunrise and sunset in July in Charlotte Amalie?

On the first day of July, sunrise is at 5:47 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 6:54 pm AST.

How many hours of sunshine does Charlotte Amalie have in July?

In Charlotte Amalie, United States Virgin Islands, the average sunshine duration in July is 10.3h.

When is the highest UV index in Charlotte Amalie?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Charlotte Amalie, United States Virgin Islands.

What is the month with the lowest UV index in Charlotte Amalie?

January through December, with an average maximum UV index of 7, are months with the lowest UV index in Charlotte Amalie.

What is the UV index intensity in July in Charlotte Amalie?

In July, the average daily maximum UV index in Charlotte Amalie, United States Virgin Islands, is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in July
Charlotte Amalie, VI

Average temperature in July - Charlotte Amalie, VI
  • Average high temperature in July: 82.9°F

The warmest month (with the highest average high temperature) is September (84°F).
The month with the lowest average high temperature is March (78.4°F).

  • Average low temperature in July: 80.2°F

The month with the highest average low temperature is October (81.5°F).
The coldest month (with the lowest average low temperature) is March (75.7°F).

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Average pressure in July
Charlotte Amalie, VI

Average pressure in July - Charlotte Amalie, VI
  • Average pressure in July: 30.01"Hg

The months with the highest atmospheric pressure are January and February (30.02"Hg).
The months with the lowest atmospheric pressure are October and November (29.91"Hg).

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Average wind speed in July
Charlotte Amalie, VI

Average wind speed in July - Charlotte Amalie, VI
  • Average wind speed in July: 15mph

The windiest month (with the highest average wind speed) is July (15mph).
The calmest month (with the lowest average wind speed) is October (11.1mph).

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Average humidity in July
Charlotte Amalie, VI

Average humidity in July - Charlotte Amalie, 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, October, November and December (75%).

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Average rainfall in July
Charlotte Amalie, VI

Average rainfall in July - Charlotte Amalie, VI
  • Average rainfall in July: 2.91"

The wettest month (with the highest rainfall) is September (4.45").
The driest month (with the least rainfall) is February (1.22").

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Average rainfall days in July
Charlotte Amalie, VI

Average rainfall days in July - Charlotte Amalie, VI
  • Average rainfall days in July: 21.7 days

The month with the highest number of rainy days is November (25.5 days).
The months with the least rainy days are February, March and June (18.2 days).

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Average sea temperature in July
Charlotte Amalie, VI

Average sea temperature in July - Charlotte Amalie, VI
  • Average sea temperature in July: 83.6°F

The best month for swimming (with the highest average sea temperature) is September (85°F).
The coldest month (with the lowest average sea temperature) is February (78.7°F).

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Average daylight in July /
Average sunshine in July
Charlotte Amalie, VI

Average daylight in July / Average sunshine in July - Charlotte Amalie, VI
  • Average daylight in July: 13h and 7min

The month with the longest days is June (Average daylight: 13h and 13min).
The month with the shortest days is December (Average daylight: 11h and 3min).

  • Average sunshine in July: 10h and 18min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).

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Average sunshine days in July
Charlotte Amalie, VI

Average sunshine days in July - Charlotte Amalie, VI
  • Average sunshine days in July: 4.6 days

The months with the most sunshine days are March and April (7.3 days).
The month with the least sunshine days is November (2.4 days).

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Average UV index in July
Charlotte Amalie, VI

Average UV index in July - Charlotte Amalie, 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).

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Average cloud cover in July
Charlotte Amalie, VI

Average cloud cover in July - Charlotte Amalie, 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).

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Average visibility in July
Charlotte Amalie, VI

Average visibility in July - Charlotte Amalie, 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).

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