Jolly Harbour
Antigua and Barbuda
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Jolly Harbour, Antigua and Barbuda

The last month of the spring, May, is a hot month in Jolly Harbour, Antigua and Barbuda, with average temperature fluctuating between 24°C (75.2°F) and 30°C (86°F).

Temperature

In Jolly Harbour, Antigua and Barbuda, the average high-temperature is essentially the same as in April - a hot 30°C (86°F). In Jolly Harbour, in May, the average low-temperature is 24°C (75.2°F).

Rainfall

In Jolly Harbour, during May, the rain falls for 14 days and regularly aggregates up to 91mm (3.6") of precipitation. Throughout the year, in Jolly Harbour, Antigua and Barbuda, there are 180 rainfall days, and 1040mm (40.9") of precipitation is accumulated.

Sea temperature

In Jolly Harbour, the average water temperature is 27°C (80.6°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Jolly Harbour, the average length of the day in May is 12.9h.

Sunshine

Months with the most sunshine 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 reading of 11, and higher, represents an extreme threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
The daily maximum UV index of 12 in May interpret into the following advice:
Practice all-important precautions. Light skin people may get burned in less than 5 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in May in Jolly Harbour?

In May, in Jolly Harbour, Antigua and Barbuda, the average high-temperature is 30°C (86°F), and the average low-temperature is 24°C (75.2°F).

How much does it rain in Jolly Harbour in May?

In Jolly Harbour, in May, during 14 rainfall days, 91mm (3.6") of precipitation is typically accumulated.

How warm is the water in May in Jolly Harbour?

In May, the average sea temperature in Jolly Harbour is 27°C (80.6°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in May in Jolly Harbour?

The average length of the day in May in Jolly Harbour is 12.9h.

What are the months with the most sunshine in Jolly Harbour?

Months with the most sunshine in Jolly Harbour are January through August, with an average of 8h of sunshine.

How many hours of sunshine does Jolly Harbour have in May?

In May, the average sunshine in Jolly Harbour, Antigua and Barbuda, is 8h.

What are the months with the highest UV index in Jolly Harbour?

March through September, with an average maximum UV index of 12, are months with the highest UV index in Jolly Harbour, Antigua and Barbuda.

How high is the UV index in May in Jolly Harbour?

In May, the average daily maximum UV index in Jolly Harbour is 12. A UV Index estimate of 11, and higher, represents an extreme health vulnerability from unprotected exposure to the UV radiation.
Average temperature in May - Jolly Harbour, Antigua and Barbuda
  • Average high temperature in May: 30°C

Warmest months (with the highest average high temperature) are July, August and September (31°C).
Months with the lowest average high temperature are January and February (28°C).

  • Average low temperature in May: 24°C

Months with the highest average low temperature are June, July, August and September (25°C).
Coldest months (with the lowest average low temperature) are January, February and March (22°C).

Average rainfall in May - Jolly Harbour, Antigua and Barbuda
  • Average rainfall in May: 91mm

The wettest month (with the highest rainfall) is September (140mm).
The driest month (with the lowest rainfall) is February (37mm).

Average rainfall days in May - Jolly Harbour, Antigua and Barbuda
  • Average rainfall days in May: 14 days

Months with the highest number of rainy days are September, October, November and December (17 days).
The month with the lowest number of rainy days is April (11 days).

Average sea temperature in May - Jolly Harbour, Antigua and Barbuda
  • Average sea temperature in May: 27°C

The best month for swimming (with the highest average sea temperature) is September (29°C).
Coldest months (with the lowest average sea temperature) are January, February, March and April (26°C).

Average daylight in May / Average sunshine in May - Jolly Harbour, Antigua and Barbuda
  • Average daylight in May: 12.9h

The month with the longest days is June (Average daylight: 13.1h).
The month with shortest days is December (Average daylight: 11.1h).

  • Average sunshine in May: 8h

Months with most sunshine are January, February, March, April, May, June, July and August (Average sunshine: 8h).
Months with least sunshine are September, October, November and December (Average sunshine: 7).

Average UV index in May - Jolly Harbour, Antigua and Barbuda
  • Average UV index in May: 12

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
Months with the lowest UV index are January and December (UV index 8).