December weather forecastSaipan, Northern Mariana Islands, USA

Weather in December

In December, Saipan's weather takes on a more tranquil demeanor as the year ends. Rainfall estimates at about 5.9" (150mm), setting a significantly lower level than in previous months. The city registers temperatures varying from a low of 74.1°F (23.4°C) to a high of 81.4°F (27.4°C), presenting fairly pleasant conditions. As January begins anew, the cycle continues in the tropical climate of Saipan.

Temperature

The commencement of December brings an average high-temperature of a still warm 81.3°F (27.4°C), marking an inconsequential divergence from November. Recording a slight drop from the daily maximum, Saipan notes an average low temperature of 74.1°F (23.4°C) in the month of December.

Rainfall

In Saipan, in December, during 23 rainfall days, 5.87" (149mm) of precipitation is typically accumulated. In Saipan, Northern Mariana Islands, during the entire year, the rain falls for 244 days and collects up to 83.39" (2118mm) of precipitation.

Ocean temperature

In Saipan, the average seawater temperature in December is 82.4°F (28°C).
Note: A water temperature from 77°F (25°C) to 84.2°F (29°C) is considered very warm and enjoyable, allowing water activities to be pleasant for extended periods without irritation.

Daylight

The month with the shortest days is December, with an average of 11h and 12min of daylight.
On the first day of December, sunrise is at 6:27 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 5:57 pm ChST.

Sunshine

The months with the least sunshine are August through December, with an average of 5h of sunshine.

UV index

November and December, with an average maximum UV index of 9, are months with the lowest UV index. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 9 during December leads to these advisories:
Take important precautions because unprotected skin can burn and be harmed swiftly. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Sunscreen with an SPF of 30 or higher should be applied generously and frequently reapplied even on cloudy days, especially after each swim or outdoor workout. Notice! Sand and water reflections contribute to a stronger UV exposure.