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

August 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
August, the last month of the summer, in Charlotte Amalie, is another hot month, with average temperature varying between 78.1°F (25.6°C) and 90.1°F (32.3°C).

Temperature

The warmest month is August, with an average high-temperature of 90.1°F (32.3°C) and an average low-temperature of 78.1°F (25.6°C).

Rainfall

In Charlotte Amalie, United States Virgin Islands, during 14.2 rainfall days, 3.5" (89.2mm) of precipitation is typically accumulated. In Charlotte Amalie, during the entire year, the rain falls for 163.7 days and collects up to 38.9" (989.1mm) of precipitation.

Ocean temperature

In August, the average ocean temperature in Charlotte Amalie is 84.4°F (29.1°C).
Note: 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.

Daylight

In Charlotte Amalie, the average length of the day in August is 12.7h.

Sunshine

Months with the most sunshine in Charlotte Amalie, United States Virgin Islands, are March, April, July and August, with an average of 9h of sunshine.

UV index

Months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an ultimate health vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 12 translate into the following recommendations:
Practice all essential precautions. Protection against sun damage is crucial. 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. 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 warmest month in Charlotte Amalie?

August is the warmest month in Charlotte Amalie, with an average high-temperature of 90.1°F (32.3°C) and an average low-temperature of 78.1°F (25.6°C).

What is the temperature in August in Charlotte Amalie?

The average high-temperature, in August, in Charlotte Amalie, is 90.1°F (32.3°C), while the average low-temperature is 78.1°F (25.6°C).

How much does it rain in Charlotte Amalie in August?

In Charlotte Amalie, in August, during 14.2 rainfall days, 3.5" (89.2mm) of precipitation is typically accumulated.

What is the water temperature in August in Charlotte Amalie?

In August, the average ocean temperature in Charlotte Amalie is 84.4°F (29.1°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.

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

In August, the average length of the day in Charlotte Amalie is 12.7h.

What are the months with the most sunshine in Charlotte Amalie?

March, April, July and August, with an average of 9h of sunshine, are months with the most sunshine in Charlotte Amalie, United States Virgin Islands.

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

The average sunshine in August in Charlotte Amalie is 9h.

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

March through September, with an average maximum UV index of 12, are months with the highest UV index in Charlotte Amalie, United States Virgin Islands.

How high is the UV index in August in Charlotte Amalie?

In Charlotte Amalie, the average daily maximum UV index in August is 12. A UV Index estimate of 11, and higher, represents an extreme health vulnerability from the exposure to the Sun's UV rays.
Average temperature in August - Charlotte Amalie, VI
  • Average high temperature in August: 90.2°F

The warmest month (with the highest average high temperature) is August (90.2°F).
Months with the lowest average high temperature are January and February (85.1°F).

  • Average low temperature in August: 78.1°F

The month with the highest average low temperature is August (78.1°F).
The coldest month (with the lowest average low temperature) is February (72.3°F).

Average rainfall in August - Charlotte Amalie, VI
  • Average rainfall in August: 3.5"

The wettest month (with the highest rainfall) is November (6").
The driest month (with the lowest rainfall) is March (1.1").

Average rainfall days in August - Charlotte Amalie, VI
  • Average rainfall days in August: 14.2 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 August - Charlotte Amalie, VI
  • Average sea temperature in August: 84.4°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 August / Average sunshine in August - Charlotte Amalie, VI
  • Average daylight in August: 12.7h

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 August: 9h

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 August - Charlotte Amalie, VI
  • Average UV index in August: 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).