December weather forecast and climate
West Island, Cocos (Keeling) Islands

Scenic view of palm trees along the white sandy beaches on the Indian Ocean, on the Coast of West Island, Cocos (Keeling) Islands
Scenic view of palm trees along the white sandy beaches on the Indian Ocean, on the Coast of West Island, Cocos (Keeling) Islands
The first month of the summer, December, is still a warm month in West Island, Cocos (Keeling) Islands, with average temperature ranging between min 24°C (75.2°F) and max 29°C (84.2°F).

Temperature

In West Island, Cocos (Keeling) Islands, the average high-temperature remains the same as in November - a still warm 29°C (84.2°F). The average low-temperature, in West Island, is 24°C (75.2°F).

Rainfall

In December, in West Island, the rain falls for 11 days. Throughout December, 152mm (5.98") of precipitation is accumulated. Throughout the year, in West Island, there are 186 rainfall days, and 2082mm (81.97") of precipitation is accumulated.

Sea temperature

July through December, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater.
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

With an average of 12.8h of daylight, December has the longest days of the year in West Island.

Sunshine

With an average of 11h of sunshine, December has the least sunshine of the year in West Island.

UV index

Months with the highest UV index are January through April, September through December, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an extreme threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 12 translate into the following recommendations:
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. 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. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in December in West Island?

The average high-temperature, in December, in West Island, is 29°C (84.2°F), while the average low-temperature is 24°C (75.2°F).

How much does it rain in West Island in December?

In December, the rain falls for 11 days. Throughout December, 152mm (5.98") of precipitation is accumulated.

When is the sea coldest in West Island?

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

How warm is the water in December in West Island?

In December, the average sea temperature in West Island, Cocos (Keeling) Islands, is 27°C (80.6°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.

When are the longest days in West Island?

The month with the longest days in West Island, Cocos (Keeling) Islands, is December, with an average of 12.8h of daylight.

How many hours of daylight does West Island have in December?

The average length of the day in December in West Island is 12.8h.

What is the month with the least sunshine in West Island?

The month with the least sunshine is December, with an average of 11h of sunshine.

How many hours of sunshine does West Island have in December?

In December, the average sunshine in West Island is 11h.

When is the highest UV index in West Island?

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index in West Island, Cocos (Keeling) Islands.

What is the UV index reading in December in West Island?

In West Island, Cocos (Keeling) Islands, the average daily maximum UV index in December 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 December - West Island, Cocos (Keeling) Islands
  • Average high temperature in December: 29°C

The warmest months (with the highest average high temperature) are February, March and April (30°C).
Months with the lowest average high temperature are June, July, August and September (28°C).

  • Average low temperature in December: 24°C

Months with the highest average low temperature are March and April (25°C).
The coldest months (with the lowest average low temperature) are July, August and September (23°C).

Average rainfall in December - West Island, Cocos (Keeling) Islands
  • Average rainfall in December: 152mm

The wettest month (with the highest rainfall) is April (255mm).
The driest month (with the least rainfall) is October (99mm).

Average rainfall days in December - West Island, Cocos (Keeling) Islands
  • Average rainfall days in December: 11 days

Months with the highest number of rainy days are May and July (20 days).
The month with the least rainy days is December (11 days).

Average sea temperature in December - West Island, Cocos (Keeling) Islands
  • Average sea temperature in December: 27°C

The best months for swimming (with the highest average sea temperature) are January, February, March, April, May and June (28°C).
The coldest months (with the lowest average sea temperature) are July, August, September, October, November and December (27°C).

Average daylight in December / Average sunshine in December - West Island, Cocos (Keeling) Islands
  • Average daylight in December: 12.8h

The month with the longest days is December (Average daylight: 12.8h).
The month with the shortest days is June (Average daylight: 11.4h).

  • Average sunshine in December: 11h

Months with the most sunshine are May and July (Average sunshine: 20h).
The month with the least sunshine is December (Average sunshine: 11h).

Average UV index in December - West Island, Cocos (Keeling) Islands
  • Average UV index in December: 12

Months with the highest UV index are January, February, March, April, September, October, November and December (UV index 12).
The month with the lowest UV index is June (UV index 8).