May weather forecast
St Johnston Village, Antigua and Barbuda

May finds St Johnston Village in the throes of a climatic transition with marked changes in weather parameters. In a sudden surge from April, rainfall almost doubles to 91mm (3.58"). Sea temperatures begin to rise, peaking the interest of water enthusiasts and casual swimmers alike. The trend of increasing daylight hours continues, achieving an average of 12.9 hours per day. A persistently high UV Index of 12 indicates that sunscreen and sun safety measures should remain a priority.

Temperature

May brings a marginal elevation to a hot 30°C (86°F) from April's 29°C (84.2°F) in St Johnston Village's average high-temperatures. St Johnston Village records an average low-temperature of 24°C (75.2°F) throughout the month of May.

Rainfall

In St Johnston Village, in May, during 14 rainfall days, 91mm (3.58") of precipitation is typically accumulated. In St Johnston Village, during the entire year, the rain falls for 180 days and collects up to 1040mm (40.94") of precipitation.

Sea temperature

In May, the average sea temperature in St Johnston Village, Antigua and Barbuda, is 27°C (80.6°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.

Daylight

In May, the average length of the day is 12h and 56min.
On the first day of May, sunrise is at 05:41 and sunset at 18:27. On the last day of the month, sunrise is at 05:32 and sunset at 18:37 AST.

Sunshine

The months with the most sunshine in St Johnston Village, Antigua and Barbuda, are January through August, with an average of 8h of sunshine.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an extreme threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, an average UV index of 12 transforms into the following instructions:
Employ every crucial safety step. Those with fair skin could experience burns in a matter of minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days. Apply and frequently reapply a broad-spectrum SPF 30+ sunscreen after every two hours, or immediately after a swim or outdoor exercise. Notice! Sand and water reflections contribute to a stronger UV exposure.