December weather forecast and Climate
Christmas Island, Christmas Island CX

• The average high temperature in December: 28.7°C

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).

• The average low temperature in December: 23.5°C

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

• The average rainfall in December: 210.7mm

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

• The average rainfall days in December: 13 days

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

• The average sea temperature in December: 28°C

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).

• The average daylight in December: 13h

Months with the longest days are January, November and December (Average daylight: 13h).
Months with shortest days are February, March, April, May, June, July, August, September and October (Average daylight: 12h).

• The average sunshine in December: 13h

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

• The 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).
Months with the lowest UV index are June and July (UV index 9).