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, like March, in Saint John, United States Virgin Islands, is another warm spring month, with an average temperature fluctuating between 71.6°F (22°C) and 84.2°F (29°C).

Temperature

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

Rainfall

In April, the rain falls for 9 days. Throughout April, 3.46" (88mm) of precipitation is accumulated. Throughout the year, there are 156 rainfall days, and 49.69" (1262mm) of precipitation is accumulated.

Ocean temperature

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

Daylight

In April, the average length of the day is 12h and 34min.
On the first day of the month, sunrise is at 6:13 am and sunset at 6:32 pm. On the last day of April, sunrise is at 5:52 am and sunset at 6:40 pm AST.

Sunshine

The months with the most sunshine in Saint John are March, April, July and August, with an average of 9h of 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 extreme health hazard from exposure to the Sun's UV radiation for ordinary individuals.
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. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in April in Saint John?

The average high-temperature, in April, is 84.2°F (29°C), while the average low-temperature is 71.6°F (22°C).

How much does it rain in Saint John in April?

In Saint John, during April, the rain falls for 9 days and regularly aggregates up to 3.46" (88mm) of 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 ocean temperature in April in Saint John?

In Saint John, 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 is the sunrise / sunset in April in Saint John?

On the first day of April, sunrise is at 6:13 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.

What is the month with the most sunshine in Saint John?

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

How long on average sun shines in April in Saint John?

In Saint John, the average sunshine duration in April is 9h.

What is the month with the highest UV index in Saint John?

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

What is the UV index reading in April in Saint John?

In April, the average daily maximum UV index is 12. A UV Index reading of 11, and higher, represents an excessive health risk from unprotected exposure to 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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