April weather forecast
Saint John, VI

Navigating from March, April in Saint John witnesses moderate changes. The city continues its journey through the year maintaining its tropical climate characteristics, with a slight rise in temperatures making for a warmer month. The noticeable shift in weather this month lies in the 3.5" (89mm) of rainfall, a pronounced jump from March. While the weather remains largely predictable, April is slightly more prone to wet spells.

Temperature

Transitioning from March to April, Saint John observes an average high-temperature of a still warm 84.2°F (29°C), differing subtly from the previous month. Throughout the month of April, Saint John witnesses an average temperature of 71.6°F (22°C).

Rainfall

In April, the rain falls for 9 days. Throughout April, 3.46" (88mm) of precipitation is accumulated. 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 in Saint John.
Note: For swimming, diving, and enjoying other water activities, the range of 77°F (25°C) to 84.2°F (29°C) in water temperature is considered ideal, offering pleasure for extended periods without discomfort.

Daylight

In Saint John, the average length of the day in April is 12h and 34min.
On the first day of April in Saint John, sunrise is at 6:12 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 5:51 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

The months with the highest UV index in Saint John, United States Virgin Islands, are March through September, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an excessive health risk from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 12 in April translates into the following instructions:
Implement all necessary safeguards, unprotected skin might suffer burns rapidly. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Even under cloud cover, use sunscreen with at least an SPF 30 generously and reapply frequently post every swim or outdoor exercise. Stay cautious! Sand and water reflections increase UV radiation potency.