May weather forecast
Jolly Harbour, Antigua and Barbuda

In May, Jolly Harbour welcomes summer with open arms. The daylight hours reach their peak, creating longer days to soak up the Caribbean sun. The enhanced warmth of the weather extends into the evenings, with nights remaining pleasantly warm. The climate in May encourages tourists to engage in a spectrum of activities, from snorkeling to sunbathing. For the first time in the year, rainfall hits a high of 91mm (3.58"), presaging the imminent monsoon season while keeping the island verdant.

Temperature

The commencement of May notes an average high-temperature of a tropical 30°C (86°F), exhibiting little difference from the previous month. Throughout May, Jolly Harbour's nights cool down to an average of 24°C (75.2°F).

Rainfall

In Jolly Harbour, during May, the rain falls for 14 days and regularly aggregates up to 91mm (3.58") of precipitation. Throughout the year, there are 180 rainfall days, and 1040mm (40.94") of precipitation is accumulated.

Sea temperature

In May, the average sea temperature in Jolly Harbour, Antigua and Barbuda, is 27°C (80.6°F).
Note: Water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm, making water activities enjoyable for prolonged periods without any uncomfortable sensations.

Daylight

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

Sunshine

The months with the most sunshine in Jolly Harbour 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 of 11, and more, symbolizes an ultimate health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 12 in May leads to these guidelines:
Employ all critical precautions. Guarding against sun damage is essential. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Even on a cloudy day, sunscreen with a minimum SPF of 30 should be used liberally and reapplied often, especially after a swim or outdoor activity. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.