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

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

The best months for a swim in Diego Garcia, British Indian Ocean Territory, are January through April, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.

January, like December, is another tropical summer 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 31°C (87.8°F). The ideal sea water temperature of 28°C (82.4°F) and only 3 rainfall days, with 46mm (1.81") of accumulated rainfall, makes January the best time for swimming and other water activities. Weather in January »

February, the last month of the summer, in Diego Garcia, is also a hot month, with average temperature fluctuating between 31°C (87.8°F) and 26°C (78.8°F). An excellent water temperature of 28°C (82.4°F) and only 1 rainfall days, with 18mm (0.71") of accumulated rainfall, makes February a prime for swimming and other water activities. Weather in February »

March, the first month of the autumn, in Diego Garcia, is still a hot month, with average temperature varying between 27°C (80.6°F) and 30°C (86°F). The ideal sea water temperature of 29°C (84.2°F) and only 1 rainfall days, with 23mm (0.91") of accumulated rainfall, makes March the best time for swimming and other water activities. Weather in March »

April, the same as March, in Diego Garcia, British Indian Ocean Territory, is another hot autumn month, with average temperature varying between 30°C (86°F) and 27°C (80.6°F). An excellent water temperature of 29°C (84.2°F) and only 3 rainfall days, with 58mm (2.28") of accumulated rainfall, makes April a prime for swimming and other water activities. Weather in April »

May, the last month of the autumn, in Diego Garcia, is also a hot month, with average temperature ranging between max 30°C (86°F) and min 27°C (80.6°F). The coldest months are March through November, with an average high-temperature of 30°C (86°F). Weather in May »

June, the first month of the winter, in Diego Garcia, is also a hot month, with average temperature varying between 26°C (78.8°F) and 30°C (86°F). The coldest months are March through November, with an average high-temperature of 30°C (86°F). In Diego Garcia, during June, the rain falls for 17 days and regularly aggregates up to 295mm (11.61") of precipitation. Weather in June »

July, the same as June, in Diego Garcia, British Indian Ocean Territory, is another hot winter month, with temperature in the range of an average low of 26°C (78.8°F) and an average high of 30°C (86°F). March through November, with an average high-temperature of 30°C (86°F), are the coldest months. In Diego Garcia, during July, the rain falls for 14 days and regularly aggregates up to 226mm (8.9") of precipitation. Weather in July »

August, the last month of the winter, in Diego Garcia, is also a hot month, with average temperature varying between 30°C (86°F) and 27°C (80.6°F). March through November, with an average high-temperature of 30°C (86°F), are the coldest months. August is the month with the most rainfall in Diego Garcia, British Indian Ocean Territory. Weather in August »

September, the first month of the spring, in Diego Garcia, is still a hot month, with average temperature ranging between min 27°C (80.6°F) and max 30°C (86°F). The coldest months are March through November, with an average high-temperature of 30°C (86°F). In Diego Garcia, during 15 rainfall days, 260mm (10.24") of precipitation is typically accumulated. Weather in September »

October, like September, is a hot spring month in Diego Garcia, British Indian Ocean Territory, with average temperature fluctuating between 30°C (86°F) and 27°C (80.6°F). March through November, with an average high-temperature of 30°C (86°F), are the coldest months. In October, in Diego Garcia, the rain falls for 15 days. Weather in October »

The last month of the spring, November, is another hot month in Diego Garcia, British Indian Ocean Territory, with average temperature varying between 26°C (78.8°F) and 30°C (86°F). March through November, with an average high-temperature of 30°C (86°F), are the coldest months. Weather in November »

December, the first month of the summer, in Diego Garcia, is also a hot month, with average temperature fluctuating between 31°C (87.8°F) and 27°C (80.6°F). The warmest months are January, February and December, with an average high-temperature of 31°C (87.8°F). Weather in December »

What are the warmest months in Diego Garcia?

January, February and December, with an average high-temperature of 31°C (87.8°F), are warmest months in Diego Garcia, British Indian Ocean Territory.

How many days does it rain in Diego Garcia?

Throughout the year, there are 123 rainfall days, and 2213mm (87.13") of precipitation is accumulated.

When are the longest days in Diego Garcia?

Months with the longest days are January, November and December, with an average of 12.5h of daylight.

When is the highest UV index in Diego Garcia?

January through April, August through December, with an average maximum UV index of 12, are months with the highest UV index.

What is the driest month in Diego Garcia?

February is the month with the least rainfall. Rain falls for 1 days and accumulates 18mm (0.71") of precipitation.

What month has the most sunshine in Diego Garcia?

With an average of 9.3h of sunshine, February has the most sunshine of the year in Diego Garcia, British Indian Ocean Territory.

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.

What months are the sea warmest in Diego Garcia?

March and April, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Diego Garcia.

What are the months with the coldest sea water in Diego Garcia?

June through September, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater in Diego Garcia, British Indian Ocean Territory.

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.

What is the month with the least sunshine in Diego Garcia?

June and September, with an average of 6.7h of sunshine, are months with the least sunshine.

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

Months with the lowest UV index in Diego Garcia are June and July, with an average maximum UV index of 10.

What is the rainiest month in Diego Garcia?

August is the month with the most rainfall. Rain falls for 14 days and accumulates 298mm (11.73") of precipitation.
Average temperature - Diego Garcia, British Indian Ocean Territory

The 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).

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

Average rainfall - Diego Garcia, British Indian Ocean Territory
Average rainfall days - Diego Garcia, British Indian Ocean Territory
Average sea temperature - Diego Garcia, British Indian Ocean Territory

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

Average daylight / Average sunshine - Diego Garcia, British Indian Ocean Territory

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

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

Average UV index - Diego Garcia, British Indian Ocean Territory

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).