April 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 April

April, the same as March, is another warm spring month in Saint John, United States Virgin Islands, with temperature in the range of an average high of 84.2°F (29°C) and an average low of 71.6°F (22°C).

Temperature

In Saint John, United States Virgin Islands, the average high-temperature in April is practically the same as in March - a still moderately hot 84.2°F (29°C). The average low-temperature, is 71.6°F (22°C).

Rainfall

In Saint John, during April, the rain falls for 9 days and regularly aggregates up to 3.46" (88mm) of precipitation. In Saint John, during the entire year, the rain falls for 156 days and collects up to 49.69" (1262mm) of precipitation.

Ocean temperature

January through April, with an average ocean temperature of 78.8°F (26°C), are months with the coldest seawater.
Note: 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 Saint John, the average length of the day in April is 12h and 34min.
On the first day of April, sunrise is at 6:12 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 6:40 pm AST.

Sunshine

March, April, July and August, with an average of 9h of sunshine, are months with the most sunshine.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index in Saint John. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 12 in April interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. 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. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the temperature in April in Saint John?

In April, in Saint John, the average high-temperature is 84.2°F (29°C), and the average low-temperature is 71.6°F (22°C).

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

In Saint John, in April, it is raining for 9 days, with typically 3.46" (88mm) of accumulated precipitation.

What months are the ocean coldest in Saint John?

The months with the coldest seawater in Saint John, United States Virgin Islands, are January through April, with an average ocean temperature of 78.8°F (26°C).

What is the water temperature in April in Saint John?

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

The average day length in April in Saint John is 12h and 34min.

When are sunrise and sunset in April in Saint John?

In April, on the first day of the month, sunrise is at 6:12 am and sunset at 6:32 pm. On the last day of the month, in Saint John, United States Virgin Islands, sunrise is at 5:52 am and sunset at 6:40 pm AST.

What are the months with the most sunshine in Saint John?

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

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

The average sunshine duration in April in Saint John, United States Virgin Islands, is 9h.

When is the highest UV index in Saint John?

The months with the highest UV index in Saint John are March through September, with an average maximum UV index of 12.

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

The average daily maximum UV index in April in Saint John is 12. A UV Index reading of 11, and higher, represents an excessive health risk from exposure to the Sun's UV radiation.
Average rainfall days
Average sunshine
Average UV index

Average temperature in April
Saint John, VI

Average temperature in April - Saint John, VI
  • Average high temperature in April: 84°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 April: 72°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 April
Saint John, VI

Average rainfall in April - Saint John, VI
  • Average rainfall in April: 3.5"

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 April
Saint John, VI

Average rainfall days in April - Saint John, VI
  • Average rainfall days in April: 9 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 April
Saint John, VI

Average sea temperature in April - Saint John, VI
  • Average sea temperature in April: 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 April /
Average sunshine in April
Saint John, VI

Average daylight in April / Average sunshine in April - Saint John, VI
  • Average daylight in April: 12h and 34min

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 April: 9h

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 April
Saint John, VI

Average UV index in April - Saint John, VI
  • Average UV index in April: 12

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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