May weather forecast
Charlotte Amalie, VI

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

Weather in May

The gateway to summer, May in Charlotte Amalie, is a period of notable weather elements. A noticeable increase occurs in rainfall, with May recording 3.03" (77mm) of rainfall, nearly twice as much compared to April. Despite the increase in rain, the city remains an attractive destination. Landscapes drape themselves in lush colors, brought about by the extended hours of sunshine. Increased humidity levels tell tales of the approaching tropical summer, filling the days and nights with a sultry essence.

Temperature

During May, Charlotte Amalie observes a subtle ascent to a still warm 81.1°F (27.3°C) from April's 79.5°F (26.4°C) in the average high-temperature. With a barely noticeable fluctuation in temperature, Charlotte Amalie reaches an average low of 77.7°F (25.4°C) during the May nights.

Heat index

The heat index value for May is appraised at a hot 86°F (30°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

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

Rainfall

In Charlotte Amalie, in May, it is raining for 20.9 days, with typically 3.03" (77mm) of accumulated 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, the average seawater temperature in May is 81.5°F (27.5°C).
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

In May, the average length of the day is 13h and 0min.
On the first day of May, 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.

Sunshine

In Charlotte Amalie, the average sunshine in May 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. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 during May translates into the following directions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Charlotte Amalie?

In Charlotte Amalie, 81.1°F (27.3°C) is the average high-temperature and 77.7°F (25.4°C) is the average low-temperature during May. In May, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 86°F (30°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 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 Charlotte Amalie, United States Virgin Islands, during May, the rain falls for 20.9 days and regularly aggregates up to 3.03" (77mm) of precipitation.

What is the water temperature in May in Charlotte Amalie?

In Charlotte Amalie, in May, the average water temperature 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?

In May, the average day length is 13h and 0min.

What time are sunrise and 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, in Charlotte Amalie, United States Virgin Islands, sunrise is at 5:42 am and sunset at 6:52 pm AST.

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

In May, the average sunshine duration is 10.3h.

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

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

When is 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 reading in May in Charlotte Amalie?

In May, the average daily maximum UV index in Charlotte Amalie, United States Virgin Islands, is 7. A UV Index value of 6 to 7 symbolizes a high health risk 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).

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).

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).

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%).

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").

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).

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).

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 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in May: 10h and 2min

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).

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).

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).

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).

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).

Charlotte Amalie, United States Virgin Islands, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location