Diego Garcia
British Indian Ocean Territory
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Diego Garcia, British Indian Ocean Territory

Palm trees bent towards the ocean in a lagoon beach in Diego Garcia, within the British Indian Ocean Territory
Palm trees bent towards the ocean in a lagoon beach in Diego Garcia, within the British Indian Ocean Territory
The last month of the autumn, May, is another tropical month in Diego Garcia, British Indian Ocean Territory, with temperature in the range of an average low of 27°C (80.6°F) and an average high of 30°C (86°F).

Temperature

March through November, with an average high-temperature of 30°C (86°F), are the coldest months.

Rainfall

In Diego Garcia, during May, the rain falls for 15 days and regularly aggregates up to 278mm (10.9") of precipitation. Throughout the year, in Diego Garcia, there are 123 rainfall days, and 2213mm (87.1") of precipitation is accumulated.

Sea temperature

In May, the average sea temperature is 28°C (82.4°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 May, the average length of the day in Diego Garcia is 11.8h.

Sunshine

In Diego Garcia, the average sunshine is 7.2h.

UV index

In Diego Garcia, the average daily maximum UV index is 11. A UV Index of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV radiation for average individuals.
Note: In May, the average maximum UV index of 11 translate into the following recommendations:
Practice all essential precautions. Protection against sun damage is crucial. 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. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What are the coldest months in Diego Garcia?

March through November, with an average high-temperature of 30°C (86°F), are the coldest months in Diego Garcia, British Indian Ocean Territory.

What is the temperature in May in Diego Garcia?

In Diego Garcia, in May, the average high-temperature is 30°C (86°F), and the average low-temperature is 27°C (80.6°F).

How much does it rain in Diego Garcia in May?

In May, the rain falls for 15 days. Throughout May, 278mm (10.9") of precipitation is accumulated.

What is the water temperature in May in Diego Garcia?

In May, the average sea temperature in Diego Garcia, British Indian Ocean Territory, is 28°C (82.4°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.

How many hours of daylight does Diego Garcia have in May?

In May, the average length of the day in Diego Garcia is 11.8h.

How long on average sun shines in May in Diego Garcia?

The average sunshine in May in Diego Garcia is 7.2h.

What is the UV index intensity in May in Diego Garcia?

In May, the average daily maximum UV index is 11. A UV Index estimate of 11, and higher, represents an ultimate hazard to health from unprotected exposure to the UV radiation.
Average temperature in May - Diego Garcia, British Indian Ocean Territory
  • Average high temperature in May: 30°C

Warmest months (with the highest average high temperature) are January, February and December (31°C).
Months with the lowest average high temperature are March, April, May, June, July, August, September, October and November (30°C).

  • Average low temperature in May: 27°C

Months with the highest average low temperature are January, March, April, May, August, September, October and December (27°C).
Coldest months (with the lowest average low temperature) are February, June, July and November (26°C).

Average rainfall in May - Diego Garcia, British Indian Ocean Territory
  • Average rainfall in May: 278mm

The wettest month (with the highest rainfall) is August (298mm).
The driest month (with the lowest rainfall) is February (18mm).

Average rainfall days in May - Diego Garcia, British Indian Ocean Territory
  • Average rainfall days in May: 15 days

The month with the highest number of rainy days is June (17 days).
Months with the lowest number of rainy days are February and March (1 days).

Average sea temperature in May - Diego Garcia, British Indian Ocean Territory
  • Average sea temperature in May: 28°C

Best months for swimming (with the highest average sea temperature) are March and April (29°C).
Coldest months (with the lowest average sea temperature) are June, July, August and September (27°C).

Average daylight in May / Average sunshine in May - Diego Garcia, British Indian Ocean Territory
  • Average daylight in May: 11.8h

Months with the longest days are January, November and December (Average daylight: 12.5h).
Months with shortest days are June and July (Average daylight: 11.7h).

  • Average sunshine in May: 7.2h

The month with most sunshine is February (Average sunshine: 9.3h).
Months with least sunshine are June and September (Average sunshine: 6.7).

Average UV index in May - Diego Garcia, British Indian Ocean Territory
  • Average UV index in May: 11

Months with the highest UV index are January, February, March, April, August, September, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 10).