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

Rennell Island's average high-temperature in December sits at a still hot 30°C (86°F), showing little difference from the previous month. The low-temperature averages to a moderately hot 23°C (73.4°F) during the nights of December.

Rainfall

In Rennell Island, during December, the rain falls for 17 days and regularly aggregates up to 246mm (9.69") of precipitation. In Rennell Island, during the entire year, the rain falls for 196 days and collects up to 2764mm (108.82") of precipitation.

Sea temperature

In Rennell Island, the average seawater temperature in December is 29°C (84.2°F).
Note: For swimming, diving, and similar activities, the water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered delightful, allowing for extended periods of enjoyment without discomfort.

Daylight

The month with the longest days in Rennell Island, Solomon Islands, is December, with an average of 12h and 48min of daylight.
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 in Rennell Island 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 Sun's UV rays for average individuals.
Note: The daily high UV index of 12 during December translates into the following recommendations:
Implement all necessary safeguards, unprotected skin might suffer burns rapidly. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. After a swim or an outdoor workout, generously apply and reapply a broad-spectrum SPF 30+ sunscreen. Heed this! UV intensity is much stronger when reflected off sand and water.