Charlotte Amalie
United States Virgin Islands, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Charlotte Amalie, VI

An aerial night view of the Charlotte Amalie Harbour within the United States Virgin Islands
An aerial night view of the Charlotte Amalie Harbour within the United States Virgin Islands
May, the last month of the spring, in Charlotte Amalie, is another hot month, with temperature in the range of an average high of 87.6°F (30.9°C) and an average low of 76.3°F (24.6°C).

Temperature

In Charlotte Amalie, United States Virgin Islands, the average high-temperature in May is almost the same as in April - a still tropical 87.6°F (30.9°C). In Charlotte Amalie, the average low-temperature is 76.3°F (24.6°C).

Rainfall

In Charlotte Amalie, United States Virgin Islands, during May, the rain falls for 11.9 days and regularly aggregates up to 3.1" (77.5mm) of precipitation. Throughout the year, in Charlotte Amalie, United States Virgin Islands, there are 163.7 rainfall days, and 38.9" (989.1mm) of precipitation is accumulated.

Ocean temperature

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

Daylight

In May, the average length of the day in Charlotte Amalie, United States Virgin Islands, is 13h.

Sunshine

In Charlotte Amalie, the average sunshine is 8h.

UV index

Months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from the exposure to the Sun's UV rays for the ordinary person.
In May, the average maximum UV index of 12 translate into the following recommendations:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. 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. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in May in Charlotte Amalie?

In May, the average high-temperature is 87.6°F (30.9°C), and the average low-temperature is 76.3°F (24.6°C).

How much does it rain in Charlotte Amalie in May?

In May, the rain falls for 11.9 days. Throughout May, 3.1" (77.5mm) of precipitation is accumulated.

How warm is the water in May in Charlotte Amalie?

In Charlotte Amalie, in May, the average water temperature is 81.5°F (27.5°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

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

In May, the average length of the day in Charlotte Amalie is 13h.

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

In May, the average sunshine is 8h.

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

Months with the highest UV index in Charlotte Amalie are March through September, with an average maximum UV index of 12.

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

In May, the average daily maximum UV index is 12. A UV Index value of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV rays.
Average temperature in May - Charlotte Amalie, VI
  • Average high temperature in May: 30.9°C

The warmest month (with the highest average high temperature) is August (32.3°C).
Months with the lowest average high temperature are January and February (29.5°C).

  • Average low temperature in May: 24.6°C

Months with the highest average low temperature are July, August and September (25.6°C).
Coldest months (with the lowest average low temperature) are January and February (22.4°C).

Average rainfall in May - Charlotte Amalie, VI
  • Average rainfall in May: 77.5mm

The wettest month (with the highest rainfall) is November (152.4mm).
The driest month (with the lowest rainfall) is March (26.7mm).

Average rainfall days in May - Charlotte Amalie, VI
  • Average rainfall days in May: 11.9 days

The month with the highest number of rainy days is November (17.8 days).
The month with the lowest number of rainy days is March (8.1 days).

Average sea temperature in May - Charlotte Amalie, VI
  • Average sea temperature in May: 27.5°C

The best month for swimming (with the highest average sea temperature) is September (29.4°C).
The coldest month (with the lowest average sea temperature) is February (25.9°C).

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

The month with the longest days is June (Average daylight: 13.2h).
The month with shortest days is December (Average daylight: 11h).

  • Average sunshine in May: 8h

Months with most sunshine are March, April, July and August (Average sunshine: 9h).
Months with least sunshine are November and December (Average sunshine: 7).

Average UV index in May - Charlotte Amalie, VI
  • Average UV index in May: 12

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 7).