December weather forecast
Rennell Island, Solomon Islands

Concluding the year in December, the Rennell Island weather aligns with the November pattern, with rainfall increasing to 246mm (9.69") thereby continuing the humid conditions. The consistent sea temperature keeps providing pristine conditions for various underwater activities. Despite the shorter sunshine duration, daylight hours peak at their highest for the year. Given the consistent UV index values throughout the year, protective measures against the sun's rays remain a top priority.

Temperature

The arrival of December brings an average high-temperature of a still hot 30°C (86°F), closely following the temperature pattern of November. The mean low-temperature during December nights is a warm 23°C (73.4°F).

Rainfall

In December, the rain falls for 17 days. Throughout December, 246mm (9.69") of precipitation is accumulated. Throughout the year, there are 196 rainfall days, and 2764mm (108.82") of precipitation is accumulated.

Sea temperature

In Rennell Island, Solomon Islands, in December, the average water temperature is 29°C (84.2°F).
Note: Water temperature ranging between 25°C (77°F) and 29°C (84.2°F) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.

Daylight

With an average of 12h and 48min of daylight, December has the longest days of the year in Rennell Island.
On the first day of December, sunrise is at 05:46 and sunset at 18:31. On the last day of the month, sunrise is at 05:58 and sunset at 18:46 +11.

Sunshine

The months with the least sunshine are January through July, September and December, with an average of 6h of sunshine.

UV index

The months with the highest UV index are January through April, September through December, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV rays for the average person.
Note: An average maximum UV index of 12 in December leads to these recommendations:
Enforce all necessary precautions, unprotected skin might burn swiftly. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Despite the cloudy weather, sunscreen with a sun protection factor of at least 30 should be liberally applied and reapplied, including after a swim or outdoor activity. Caution! The Sun's UV intensity grows with reflections off sand and water.