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

July 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
July, the same as June, in Diego Garcia, British Indian Ocean Territory, is another tropical winter month, with average temperature fluctuating between 30°C (86°F) and 26°C (78.8°F).

Temperature

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

Rainfall

In Diego Garcia, during 14 rainfall days, 226mm (8.9") of precipitation is typically accumulated. In Diego Garcia, during the entire year, the rain falls for 123 days and collects up to 2213mm (87.1") of precipitation.

Sea temperature

Months with the coldest seawater in Diego Garcia are June through September, with an average sea temperature of 27°C (80.6°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

Months with the shortest days in Diego Garcia are June and July, with an average of 11.7h of daylight.

Sunshine

The average sunshine in Diego Garcia is 7.3h.

UV index

Months with the lowest UV index in Diego Garcia are June and July, with an average maximum UV index of 10. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 10 in July interpret into the following advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 coldest month in Diego Garcia?

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

What is the temperature in July in Diego Garcia?

In July, in Diego Garcia, British Indian Ocean Territory, the average high-temperature is 30°C (86°F), and the average low-temperature is 26°C (78.8°F).

How many days does it rain in July in Diego Garcia?

In Diego Garcia, British Indian Ocean Territory, during July, the rain falls for 14 days and regularly aggregates up to 226mm (8.9") of precipitation.

When is the sea coldest in Diego Garcia?

June through September, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater.

What is the sea water temperature in July in Diego Garcia?

In Diego Garcia, British Indian Ocean Territory, the average seawater temperature in July is 27°C (80.6°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 month with the shortest days in Diego Garcia?

June and July, with an average of 11.7h of daylight, are months with the shortest days in Diego Garcia.

What is the average length of the day in July in Diego Garcia?

The average length of the day in July in Diego Garcia, British Indian Ocean Territory, is 11.7h.

How many hours of sunshine does Diego Garcia have in July?

In July, the average sunshine in Diego Garcia, British Indian Ocean Territory, is 7.3h.

What is the month with the lowest UV index in Diego Garcia?

June and July, with an average maximum UV index of 10, are months with the lowest UV index in Diego Garcia, British Indian Ocean Territory.

What is the UV index reading in July in Diego Garcia?

In July, the average daily maximum UV index in Diego Garcia is 10. A UV Index of 8 to 10 symbolizes a very high health threat from unprotected exposure to the UV radiation.
Average temperature in July - Diego Garcia, British Indian Ocean Territory
  • Average high temperature in July: 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 July: 26°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 July - Diego Garcia, British Indian Ocean Territory
  • Average rainfall in July: 226mm

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

Average rainfall days in July - Diego Garcia, British Indian Ocean Territory
  • Average rainfall days in July: 14 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 July - Diego Garcia, British Indian Ocean Territory
  • Average sea temperature in July: 27°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 July / Average sunshine in July - Diego Garcia, British Indian Ocean Territory
  • Average daylight in July: 11.7h

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 July: 7.3h

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 July - Diego Garcia, British Indian Ocean Territory
  • Average UV index in July: 10

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).