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

May, the last month of the spring in Charlotte Amalie, is also a moderately hot month, with an average temperature ranging between min 77.7°F (25.4°C) and max 81.1°F (27.3°C).

Temperature

In Charlotte Amalie, United States Virgin Islands, the average high-temperature in May is essentially the same as in April - a still warm 81.1°F (27.3°C). In Charlotte Amalie, the average low-temperature is 77.7°F (25.4°C).

Heat index

The average heat index in May is computed to be a tropical 86°F (30°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity 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 'real feel', 'felt air temperature', 'apparent temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, pregnancy, metabolic differences). Be aware that direct exposure to sunlight increases heat impact and may raise the 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

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

Rainfall

In May, the rain falls for 20.9 days. Throughout May, 3.03" (77mm) of precipitation is accumulated. In Charlotte Amalie, during the entire year, the rain falls for 253.1 days and collects up to 33.27" (845mm) of precipitation.

Ocean temperature

In May, the average ocean 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

In May, the average length of the day in Charlotte Amalie 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, in Charlotte Amalie, sunrise is at 5:42 am and sunset at 6:52 pm AST.

Sunshine

The average sunshine in May is 10.3h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. 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 value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 7 in May interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
[Resources]

FAQ

What is the temperature in May in Charlotte Amalie?

The average high-temperature, in May, is 81.1°F (27.3°C), while the average low-temperature is 77.7°F (25.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, 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, United States Virgin Islands.

What is the average humidity in May in Charlotte Amalie?

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

How many days does it rain in May in Charlotte Amalie?

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

What is the ocean temperature in May in Charlotte Amalie?

In Charlotte Amalie, United States Virgin Islands, the average seawater temperature in May 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.

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

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

When is the sunrise / sunset in May in Charlotte Amalie?

In May, on the first day of the month, 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 many hours of sunshine does Charlotte Amalie have in May?

The average sunshine duration in May is 10.3h.

What are the months with the highest UV index in Charlotte Amalie?

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

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

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

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

In May, the average daily maximum UV index in Charlotte Amalie is 7. A UV Index estimate of 6 to 7 represents a high health threat from unsafe 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).

[Resources]

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).

[Resources]

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).

[Resources]

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%).

[Resources]

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").

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location