December weather forecast
Christmas Island, Christmas Island

Bluewater waves hitting the rocky coast of Christmas Island, in Australia
Bluewater waves hitting the rocky coast of Christmas Island, in Australia

December

Weather in December

As Christmas Island segues into December, the weather reverts to full wet season mode. A further increased rainfall to 211mm (8.31") is recorded for the month, second only to February. It mirrors weather conditions similar to the first quarter of the year, with a mix of warm and wet days. Being a part of the wet season, December requires visitors to pack appropriately to fully enjoy their time on the island. Just before the year ends, the Christmas Island frigatebird, a spectacle to behold, prepares for its nesting period.

Temperature

December notes an average high-temperature of a still moderately hot 28.7°C (83.7°F), subtly differing from November's 28.2°C (82.8°F). In the month of December, Christmas Island experiences an average low-temperature of 23.5°C (74.3°F).

Rainfall

In Christmas Island, during December, the rain falls for 13 days and regularly aggregates up to 211mm (8.31") of precipitation. Throughout the year, in Christmas Island, there are 152 rainfall days, and 2101mm (82.72") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature is 28°C (82.4°F).
Note: Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are considered superb and highly pleasant for water activities over extended periods.

Daylight

The month with the longest days in Christmas Island is December, with an average of 12h and 42min of daylight.
On the first day of the month, sunrise is at 05:25 and sunset at 18:07. On the last day of December, sunrise is at 05:38 and sunset at 18:22 +07.

Sunshine

In Christmas Island, the average sunshine in December is 13h.

UV index

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an ultimate health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 12 during December translates into these guidelines:
Enforce all necessary safety measures, unprotected skin may suffer burns swiftly. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Even when the sky is cloudy, apply generously and frequently reapply a sunscreen with SPF 30 or more, especially post every swim or outdoor exercise. Notice! The Sun's UV exposure elevates with sand and water reflections.

Frequently asked questions

Is it hot during December?
During December, Christmas Island experiences an average high-temperature of 28.7°C (83.7°F) and a low-temperature of 23.5°C (74.3°F).
How many days does it rain in December?
In December, the rain falls for 13 days. Throughout December, 211mm (8.31") of precipitation is accumulated.
What is the water temperature in December?
In Christmas Island, Christmas Island, in December, the average water temperature 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.
When are the longest days?
The month with the longest days is December, with an average of 12h and 42min of daylight.
How many hours of daylight does Christmas Island have in December?
The average day length in December is 12h and 44min.
When is the sunrise / sunset in December?
On the first day of December, sunrise is at 05:25 and sunset at 18:07. On the last day of the month, sunrise is at 05:38 and sunset at 18:22 +07.
How long on average sun shines in December?
In December, the average sunshine duration is 13h.
What are the months with the highest UV index?
January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index in Christmas Island, Christmas Island.
How high is the UV index in December?
In December, the average daily maximum UV index is 12. A UV Index value of 11, and more, symbolizes an extreme health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average UV index
Average temperature in December
Christmas Island, Christmas Island
  • Average high temperature in December: 28.7°C

The warmest months (with the highest average high temperature) are March and April (29.2°C).
The month with the lowest average high temperature is August (27°C).

  • Average low temperature in December: 23.5°C

The month with the highest average low temperature is May (24.8°C).
The coldest months (with the lowest average low temperature) are August and September (23.2°C).

Average rainfall in December
Christmas Island, Christmas Island
  • Average rainfall in December: 210.7mm

The wettest month (with the highest rainfall) is February (348.4mm).
The driest month (with the least rainfall) is August (43.1mm).

Average rainfall days in December
Christmas Island, Christmas Island
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is March (22 days).
The month with the least rainy days is September (8 days).

Average sea temperature in December
Christmas Island, Christmas Island
  • Average sea temperature in December: 28°C

The best months for swimming (with the highest average sea temperature) are February, March, April and May (29°C).
The coldest month (with the lowest average sea temperature) is September (26°C).

Average daylight in December /
Average sunshine in December
Christmas Island, Christmas Island
  • Average daylight in December: 12h and 4min

The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).

  • Average sunshine in December: 13h

The month with the most sunshine is March (Average sunshine: 22h).
The month with the least sunshine is September (Average sunshine: 8h).

Average UV index in December
Christmas Island, Christmas Island
  • Average UV index in December: 12

The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 9).

englishespañol中文
Share