January weather forecast and climate
Charlotte Amalie, VI

The Charlotte Amalie Harbour within the United States Virgin Islands
The Charlotte Amalie Harbour within the United States Virgin Islands
January, the same as December, is a moderately hot winter month in Charlotte Amalie, United States Virgin Islands, with average temperature ranging between max 79.3°F (26.3°C) and min 77.4°F (25.2°C).

Temperature

In January, the average high-temperature is practically the same as in December - a still moderately hot 79.3°F (26.3°C). The average low-temperature, in Charlotte Amalie, United States Virgin Islands, is 77.4°F (25.2°C).

Humidity

Months with the lowest humidity in Charlotte Amalie are January through March, October through December, with an average relative humidity of 75%.

Rainfall

In Charlotte Amalie, it is raining for 21.2 days, with typically 1.54" (39mm) of accumulated precipitation. 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 January, the average ocean temperature is 79.5°F (26.4°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 January, the average length of the day in Charlotte Amalie is 11.2h.

Sunshine

The average sunshine in Charlotte Amalie is 8.1h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Charlotte Amalie. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: In January, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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. 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. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in January in Charlotte Amalie?

The average high-temperature, in January, in Charlotte Amalie, United States Virgin Islands, is 79.3°F (26.3°C), while the average low-temperature is 77.4°F (25.2°C).

What is the least humid month in Charlotte Amalie?

January through March, October through December, with an average relative humidity of 75%, are the least humid months in Charlotte Amalie, United States Virgin Islands.

What is the average humidity in January in Charlotte Amalie?

In Charlotte Amalie, United States Virgin Islands, the average relative humidity in January is 75%.

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

In Charlotte Amalie, in January, it is raining for 21.2 days, with typically 1.54" (39mm) of accumulated precipitation.

What is the water temperature in January in Charlotte Amalie?

In Charlotte Amalie, the average seawater temperature in January is 79.5°F (26.4°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 January?

In Charlotte Amalie, the average length of the day in January is 11.2h.

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

In January, the average sunshine in Charlotte Amalie is 8.1h.

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

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

When is 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.

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

The average daily maximum UV index in January in Charlotte Amalie, United States Virgin Islands, is 7. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in January - Charlotte Amalie, VI
  • Average high temperature in January: 79.3°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 January: 77.4°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 January - Charlotte Amalie, VI
  • Average pressure in January: 30.02"

Months with the highest atmospheric pressure are January and February (30.02").
Months with the lowest atmospheric pressure are October and November (29.91").

Average wind speed in January - Charlotte Amalie, VI
  • Average wind speed in January: 14.5mph

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 January - Charlotte Amalie, VI
  • Average humidity in January: 75%

Months with the highest relative humidity are May, June, July and August (78%).
Months with the lowest relative humidity are January, February, March, October, November and December (75%).

Average rainfall in January - Charlotte Amalie, VI
  • Average rainfall in January: 1.54"

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 January - Charlotte Amalie, VI
  • Average rainfall days in January: 21.2 days

The month with the highest number of rainy days is November (25.5 days).
Months with the least rainy days are February, March and June (18.2 days).

Average sea temperature in January - Charlotte Amalie, VI
  • Average sea temperature in January: 79.5°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 January / Average sunshine in January - Charlotte Amalie, VI
  • Average daylight in January: 11.2h

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

  • Average sunshine in January: 8.1h

The month with the most sunshine is June (Average sunshine: 10.5h).
Months with the least sunshine are November and December (Average sunshine: 6.5).

Average sunshine days in January - Charlotte Amalie, VI
  • Average sunshine days in January: 4.9 days

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 January - Charlotte Amalie, VI
  • Average UV index in January: 7

Months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
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 January - Charlotte Amalie, VI
  • Average cloud cover in January: 36

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 January - Charlotte Amalie, VI
  • Average visibility in January: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).