January weather forecast
Saint John, VI

Beautiful scenery with green vegetation and the vast blue water around the islands in St John, Virgin Islands
Beautiful scenery with green vegetation and the vast blue water around the islands in St John, Virgin Islands

Weather in January

January, like December, in Saint John, United States Virgin Islands, is a moderately hot winter month, with temperature in the range of an average high of 82.4°F (28°C) and an average low of 69.8°F (21°C).

Temperature

The coldest months are January through March and December, with an average high-temperature of 82.4°F (28°C).

Rainfall

In Saint John, in January, it is raining for 14 days, with typically 2.68" (68mm) of accumulated precipitation. In Saint John, United States Virgin Islands, during the entire year, the rain falls for 156 days and collects up to 49.69" (1262mm) of precipitation.

Ocean temperature

The months with the coldest seawater in Saint John are January through April, with an average ocean temperature of 78.8°F (26°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 is 11h and 11min.
On the first day of January in Saint John, sunrise is at 6:50 am and sunset at 5:54 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:12 pm AST.

Sunshine

The average sunshine in January is 8h.

UV index

In January, the average daily maximum UV index in Saint John is 8. A UV Index value of 8 to 10 symbolizes a very high health hazard from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 8 in January transform into the following instructions:
Take special precautions, as unprotected skin can be damaged and can burn quickly. 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. 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. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What are the coldest months in Saint John?

January through March and December, with an average high-temperature of 82.4°F (28°C), are the coldest months in Saint John, United States Virgin Islands.

What is the temperature in January in Saint John?

In Saint John, in January, the average high-temperature is 82.4°F (28°C), and the average low-temperature is 69.8°F (21°C).

How many days does it rain in January in Saint John?

In Saint John, in January, during 14 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

What are the months with the coldest ocean in Saint John?

January through April, with an average ocean temperature of 78.8°F (26°C), are months with the coldest seawater.

How warm is the water in January in Saint John?

In January, the average ocean temperature in Saint John, United States Virgin Islands, is 78.8°F (26°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 Saint John have in January?

In Saint John, the average day length in January is 11h and 11min.

When are sunrise and sunset in January in Saint John?

In January, on the first day of the month, sunrise is at 6:50 am and sunset at 5:54 pm. On the last day of the month, in Saint John, United States Virgin Islands, sunrise is at 6:52 am and sunset at 6:12 pm AST.

How many hours of sunshine does Saint John have in January?

The average sunshine duration in January in Saint John is 8h.

How high is the UV index in January in Saint John?

In Saint John, United States Virgin Islands, the average daily maximum UV index in January is 8. A UV Index estimate of 8 to 10 represents a very high health risk from unsafe exposure to Sun's UV rays.
Average rainfall days
Average sunshine
Average UV index

Average temperature in January
Saint John, VI

Average temperature in January - Saint John, VI
  • Average high temperature in January: 82°F

The warmest months (with the highest average high temperature) are August and September (88°F).
The months with the lowest average high temperature are January, February, March and December (82°F).

  • Average low temperature in January: 70°F

The months with the highest average low temperature are June, July, August, September and October (75°F).
The coldest months (with the lowest average low temperature) are January, February and March (70°F).

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Average rainfall in January
Saint John, VI

Average rainfall in January - Saint John, VI
  • Average rainfall in January: 2.7"

The wettest months (with the highest rainfall) are October and November (6.3").
The driest month (with the least rainfall) is February (2.1").

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Average rainfall days in January
Saint John, VI

Average rainfall days in January - Saint John, VI
  • Average rainfall days in January: 14 days

The months with the highest number of rainy days are September and October (16 days).
The month with the least rainy days is April (9 days).

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Average sea temperature in January
Saint John, VI

Average sea temperature in January - Saint John, VI
  • Average sea temperature in January: 79°F

The best months for swimming (with the highest average sea temperature) are September and October (84°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (79°F).

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Average daylight in January /
Average sunshine in January
Saint John, VI

Average daylight in January / Average sunshine in January - Saint John, VI
  • Average daylight in January: 11h and 11min

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 January: 8h

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

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Average UV index in January
Saint John, VI

Average UV index in January - Saint John, VI
  • Average UV index in January: 8

The 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).

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