December weather forecast
Kwajalein, Marshall Islands

Closing the year, December continues the trend set by November with only slight deviations. The rainfall eases further to 211mm (8.31"), presenting a noticeable change from November's weather. Even so, high temperatures persist throughout December on Kwajalein maintaining the tropical climate. A slightly lower UV index does little to change the typically high levels experienced throughout the year. Entering the holiday season, the weather remains warm and mildly wet, perfect for tropical escapades.

Temperature

January through May and December represent the coldest period in Kwajalein, Marshall Islands, with an average high-temperature of 30°C (86°F).

Rainfall

In Kwajalein, during December, the rain falls for 20 days and regularly aggregates up to 211mm (8.31") of precipitation. In Kwajalein, during the entire year, the rain falls for 224 days and collects up to 2605mm (102.56") of precipitation.

Sea temperature

January through May and December, with an average sea temperature of 28°C (82.4°F), are months with the coldest seawater in Kwajalein.
Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

The month with the shortest days in Kwajalein is December, with an average of 11h and 36min of daylight.
On the first day of the month, sunrise is at 06:48 and sunset at 18:27. On the last day of December, in Kwajalein, sunrise is at 07:03 and sunset at 18:40 +12.

Sunshine

In Kwajalein, Marshall Islands, the average sunshine in December is 20h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 10. A UV Index estimate of 8 to 10 represents a very high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In December, a regular UV index of 10 translates into these guidelines:
Stay protected; otherwise, skin and eyes can suffer rapid damage. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Apply generously and frequently reapply a sunscreen with SPF 30 or more even on cloudy days, particularly after a swim or outdoor exercise. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.