December weather forecast
Christmas Island, Christmas Island

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

The arrival of December in Christmas Island brings an average high-temperature of a still warm 28.7°C (83.7°F), closely following the temperature pattern of November. In Christmas Island, the average temperature during the nights of December drops to a still warm 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. In Christmas Island, during the entire year, the rain falls for 152 days and collects up to 2101mm (82.72") of precipitation.

Sea temperature

In Christmas Island, in December, the average water temperature is 28°C (82.4°F).
Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.

Daylight

With an average of 12h and 42min of daylight, December has the longest days of the year.
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 reading of 11, and higher, represents an excessive health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, a daily maximum UV index of 12 leads to the following instructions:
Practice every precaution of necessity, unprotected skin and eyes might burn in minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Directly after outdoor activities or swimming, a broad-spectrum sunscreen with SPF 30+ should be applied generously and reapplied frequently. Attention! The reflection of both water and sand can increase the intensity of UV rays.