George Town
Cayman Islands
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
George Town, Cayman Islands

The scenic waterfront in George Town, Cayman Islands, viewed from the water on a warm sunny day
The scenic waterfront in George Town, Cayman Islands, viewed from the water on a warm sunny day
The last month of the spring, May, is another warm month in George Town, Cayman Islands, with average temperature varying between 29°C (84.2°F) and 26°C (78.8°F).

Temperature

In May, the average high-temperature is essentially the same as in April - a still warm 29°C (84.2°F). In George Town, the average low-temperature is 26°C (78.8°F).

Rainfall

In George Town, during 7 rainfall days, 150mm (5.9") of precipitation is typically accumulated. In George Town, during the entire year, the rain falls for 80 days and collects up to 1282mm (50.5") of precipitation.

Sea temperature

In May, the average sea temperature in George Town 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

In George Town, Cayman Islands, the average length of the day in May is 13.1h.

Sunshine

The average sunshine in May is 9h.

UV index

Months with the highest UV index are March through August, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from the exposure to the Sun's UV rays 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 George Town?

In May, in George Town, the average high-temperature is 29°C (84.2°F), and the average low-temperature is 26°C (78.8°F).

How many days does it rain in May in George Town?

In George Town, Cayman Islands, during May, the rain falls for 7 days and regularly aggregates up to 150mm (5.9") of precipitation.

How warm is the water in May in George Town?

In George Town, in May, the average water temperature is 28.2°C (82.8°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 George Town?

In George Town, Cayman Islands, the average length of the day in May is 13.1h.

How many hours of sunshine does George Town have in May?

In George Town, the average sunshine in May is 9h.

What is the month with the highest UV index in George Town?

March through August, with an average maximum UV index of 12, are months with the highest UV index in George Town, Cayman Islands.

What is the UV index intensity in May in George Town?

The average daily maximum UV index in May 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 - George Town, Cayman Islands
  • Average high temperature in May: 29°C

Warmest months (with the highest average high temperature) are June, July, August and September (30°C).
Months with the lowest average high temperature are January and February (26°C).

  • Average low temperature in May: 26°C

Months with the highest average low temperature are June, July and August (27°C).
The coldest month (with the lowest average low temperature) is February (22°C).

Average rainfall in May - George Town, Cayman Islands
  • Average rainfall in May: 150mm

The wettest month (with the highest rainfall) is October (226mm).
Driest months (with the lowest rainfall) are February and April (13mm).

Average rainfall days in May - George Town, Cayman Islands
  • Average rainfall days in May: 7 days

The month with the highest number of rainy days is October (10 days).
Months with the lowest number of rainy days are February, March and April (4 days).

Average sea temperature in May - George Town, Cayman Islands
  • Average sea temperature in May: 28.2°C

Best months for swimming (with the highest average sea temperature) are August and September (29.9°C).
The coldest month (with the lowest average sea temperature) is February (26.5°C).

Average daylight in May / Average sunshine in May - George Town, Cayman Islands
  • Average daylight in May: 13.1h

The month with the longest days is June (Average daylight: 13.3h).
The month with shortest days is December (Average daylight: 11h).

  • Average sunshine in May: 9h

The month with most sunshine is April (Average sunshine: 10h).
Months with least sunshine are November and December (Average sunshine: 7).

Average UV index in May - George Town, Cayman Islands
  • Average UV index in May: 12

Months with the highest UV index are March, April, May, June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 7).