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

January 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
January, like December, is another hot summer month in Diego Garcia, British Indian Ocean Territory, with average temperature ranging between max 31°C (87.8°F) and min 27°C (80.6°F).

Temperature

The warmest months are January, February and December, with an average high-temperature of 31°C (87.8°F).

Rainfall

In January, in Diego Garcia, British Indian Ocean Territory, the rain falls for 3 days. Throughout January, 46mm (1.8") of precipitation is accumulated. Throughout the year, in Diego Garcia, there are 123 rainfall days, and 2213mm (87.1") of precipitation is accumulated.

Sea temperature

In Diego Garcia, the average seawater temperature in January 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.

Daylight

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

Sunshine

In January, the average sunshine in Diego Garcia is 8h.

UV index

Months with the highest UV index are January through April, August through December, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an extreme health hazard from the exposure to the Sun's UV radiation for the ordinary person.
The daily maximum UV index of 12 interpret into the following advice:
Take all required precautions, as unprotected skin and eyes can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 strength of the UV rays is significantly increased by the reflection of the water and sand.

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.

What is the temperature in January in Diego Garcia?

The average high-temperature, in January, in Diego Garcia, is 31°C (87.8°F), while the average low-temperature is 27°C (80.6°F).

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

In Diego Garcia, British Indian Ocean Territory, in January, it is raining for 3 days, with typically 46mm (1.8") of accumulated precipitation.

How warm is the water in January in Diego Garcia?

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

When are the longest days in Diego Garcia?

January, November and December, with an average of 12.5h of daylight, are months with the longest days in Diego Garcia.

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

In Diego Garcia, the average length of the day in January is 12.5h.

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

In Diego Garcia, the average sunshine in January is 8h.

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

Months with the highest UV index in Diego Garcia, British Indian Ocean Territory, are January through April, August through December, with an average maximum UV index of 12.

How high is the UV index in January in Diego Garcia?

In Diego Garcia, British Indian Ocean Territory, the average daily maximum UV index in January is 12. A UV Index reading of 11, and higher, represents an excessive health risk from unprotected exposure to the UV radiation.
Average temperature in January - Diego Garcia, British Indian Ocean Territory
  • Average high temperature in January: 31°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 January: 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 January - Diego Garcia, British Indian Ocean Territory
  • Average rainfall in January: 46mm

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

Average rainfall days in January - Diego Garcia, British Indian Ocean Territory
  • Average rainfall days in January: 3 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 January - Diego Garcia, British Indian Ocean Territory
  • Average sea temperature in January: 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 January / Average sunshine in January - Diego Garcia, British Indian Ocean Territory
  • Average daylight in January: 12.5h

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 January: 8h

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 January - Diego Garcia, British Indian Ocean Territory
  • Average UV index in January: 12

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).