May 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 May

The last month of the spring, May, is another warm month in Charlotte Amalie, United States Virgin Islands, with an average temperature fluctuating between 81.1°F (27.3°C) and 77.7°F (25.4°C).

Temperature

In May, the average high-temperature is almost the same as in April - a still moderately hot 81.1°F (27.3°C). The average low-temperature, in Charlotte Amalie, is 77.7°F (25.4°C).

Heat index

In May, the average heat index is computed to be a hot 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
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 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, differences in body mass, height, and shape, 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 particularly important for children. 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 in Charlotte Amalie.

Rainfall

In Charlotte Amalie, during May, the rain falls for 20.9 days and regularly aggregates up to 3.03" (77mm) of precipitation. Throughout the year, in Charlotte Amalie, United States Virgin Islands, there are 253.1 rainfall days, and 33.27" (845mm) of precipitation is accumulated.

Ocean temperature

In Charlotte Amalie, in May, the average water temperature is 81.5°F (27.5°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

The average length of the day in May is 13h and 0min.
On the first day of the month, sunrise is at 5:52 am and sunset at 6:41 pm. On the last day of May, sunrise is at 5:42 am and sunset at 6:52 pm AST.

Sunshine

In May, the average sunshine 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 in Charlotte Amalie are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 7 in May transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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 the 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in May in Charlotte Amalie?

In May, in Charlotte Amalie, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 77.7°F (25.4°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in May is computed to be 86°F (30°C).

What are the most humid months in Charlotte Amalie?

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

What is the average humidity in May in Charlotte Amalie?

The average relative humidity in May in Charlotte Amalie, United States Virgin Islands, is 78%.

How much does it rain in Charlotte Amalie in May?

In May, the rain falls for 20.9 days. Throughout May, 3.03" (77mm) of precipitation is accumulated.

What is the water temperature in May in Charlotte Amalie?

In May, the average ocean temperature in Charlotte Amalie, United States Virgin Islands, is 81.5°F (27.5°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Charlotte Amalie have in May?

The average day length in May is 13h and 0min.

What time are sunrise and sunset in May in Charlotte Amalie?

On the first day of May in Charlotte Amalie, United States Virgin Islands, sunrise is at 5:52 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 6:52 pm AST.

How long on average sun shines in May in Charlotte Amalie?

In May, the average sunshine duration is 10.3h.

What are the months with 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.

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, United States Virgin Islands.

What is the UV index reading in May in Charlotte Amalie?

The average daily maximum UV index in May in Charlotte Amalie is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.

Average temperature in May
Charlotte Amalie, VI

Average temperature in May - Charlotte Amalie, VI
  • Average high temperature in May: 81.1°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 May: 77.7°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 May
Charlotte Amalie, VI

Average pressure in May - Charlotte Amalie, VI
  • Average pressure in May: 29.99"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 May
Charlotte Amalie, VI

Average wind speed in May - Charlotte Amalie, VI
  • Average wind speed in May: 13.1mph

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 May
Charlotte Amalie, VI

Average humidity in May - Charlotte Amalie, VI
  • Average humidity in May: 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 May
Charlotte Amalie, VI

Average rainfall in May - Charlotte Amalie, VI
  • Average rainfall in May: 3.03"

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 May
Charlotte Amalie, VI

Average rainfall days in May - Charlotte Amalie, VI
  • Average rainfall days in May: 20.9 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 May
Charlotte Amalie, VI

Average sea temperature in May - Charlotte Amalie, VI
  • Average sea temperature in May: 81.5°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 May /
Average sunshine in May
Charlotte Amalie, VI

Average daylight in May / Average sunshine in May - Charlotte Amalie, VI
  • Average daylight in May: 13h and 0min

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 May: 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 May
Charlotte Amalie, VI

Average sunshine days in May - Charlotte Amalie, VI
  • Average sunshine days in May: 5.4 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 May
Charlotte Amalie, VI

Average UV index in May - Charlotte Amalie, VI
  • Average UV index in May: 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 May
Charlotte Amalie, VI

Average cloud cover in May - Charlotte Amalie, VI
  • Average cloud cover in May: 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 May
Charlotte Amalie, VI

Average visibility in May - Charlotte Amalie, VI
  • Average visibility in May: 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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