Gros Islet
Saint Lucia
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Gros Islet, Saint Lucia

The last month of the spring, May, is a tropical month in Gros Islet, Saint Lucia, with average temperature fluctuating between 24°C (75.2°F) and 30°C (86°F).

Temperature

May through October, with an average high-temperature of 30°C (86°F), are the warmest months.

Rainfall

In May, in Gros Islet, the rain falls for 15 days. Throughout May, 124mm (4.9") of precipitation is accumulated. Throughout the year, there are 209 rainfall days, and 2035mm (80.1") of precipitation is accumulated.

Sea temperature

In Gros Islet, the average water temperature is 28.2°C (82.8°F).
Note: 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.

Daylight

The average length of the day in May is 12.8h.

Sunshine

Months with the most sunshine in Gros Islet are January through September, November and December, with an average of 8h of sunshine.

UV index

Months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 12 translate into the following recommendations:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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. 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. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the warmest month in Gros Islet?

May through October, with an average high-temperature of 30°C (86°F), are warmest months in Gros Islet, Saint Lucia.

What is the temperature in May in Gros Islet?

In Gros Islet, Saint Lucia, in May, the average high-temperature is 30°C (86°F), and the average low-temperature is 24°C (75.2°F).

How many days does it rain in May in Gros Islet?

In Gros Islet, during May, the rain falls for 15 days and regularly aggregates up to 124mm (4.9") of precipitation.

How warm is the water in May in Gros Islet?

In May, the average sea temperature in Gros Islet is 28.2°C (82.8°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in May in Gros Islet?

In May, the average length of the day in Gros Islet, Saint Lucia, is 12.8h.

What is the month with the most sunshine in Gros Islet?

January through September, November and December, with an average of 8h of sunshine, are months with the most sunshine in Gros Islet, Saint Lucia.

How many hours of sunshine does Gros Islet have in May?

The average sunshine in May in Gros Islet, Saint Lucia, is 8h.

What is the month with the highest UV index in Gros Islet?

Months with the highest UV index in Gros Islet are March through September, with an average maximum UV index of 12.

What is the UV index reading in May in Gros Islet?

The average daily maximum UV index in May in Gros Islet, Saint Lucia, is 12. A UV Index value of 11, and more, symbolizes an extreme health threat from the exposure to the Sun's UV rays.
Average temperature in May - Gros Islet, Saint Lucia
  • Average high temperature in May: 30°C

Warmest months (with the highest average high temperature) are May, June, July, August, September and October (30°C).
Months with the lowest average high temperature are January and February (28°C).

  • Average low temperature in May: 24°C

The month with the highest average low temperature is July (25°C).
Coldest months (with the lowest average low temperature) are January, February and March (22°C).

Average rainfall in May - Gros Islet, Saint Lucia
  • Average rainfall in May: 124mm

The wettest month (with the highest rainfall) is October (269mm).
The driest month (with the lowest rainfall) is March (76mm).

Average rainfall days in May - Gros Islet, Saint Lucia
  • Average rainfall days in May: 15 days

The month with the highest number of rainy days is September (25 days).
The month with the lowest number of rainy days is April (11 days).

Average sea temperature in May - Gros Islet, Saint Lucia
  • Average sea temperature in May: 28.2°C

The best month for swimming (with the highest average sea temperature) is September (29.4°C).
The coldest month (with the lowest average sea temperature) is March (27°C).

Average daylight in May / Average sunshine in May - Gros Islet, Saint Lucia
  • Average daylight in May: 12.8h

The month with the longest days is June (Average daylight: 13h).
The month with shortest days is December (Average daylight: 11.3h).

  • Average sunshine in May: 8h

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

Average UV index in May - Gros Islet, Saint Lucia
  • Average UV index in May: 12

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 8).