Saipan weather in December
Temperature, sea and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Good
Best time to visit: December – May
What is the weather like in Saipan in December?
In December, Saipan is hot: daytime highs average 28 °C, and even at night it stays warm at around 26 °C. The sea averages 28.5 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. It is the rainy season: rain falls on about 16 days, totalling 71 mm. The air is often humid and muggy. It is often windy, with gusts of around 34 km/h. All in all, December is a good month for a holiday in Saipan.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 54 | 61 | 69 |
| Day | 29° | 28° | 28° |
| Night | 27° | 26° | 26° |
| Sea | 29° | 29° | 28° |
| Sun | 7 h | 8 h | 7 h |
| Rain days | 20 | 16 | 14 |
More details for December
- Daylight
- 11 h 14 min06:35 – 17:49
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 34 km/haverage daily peakAll months
- Cloud cover
- 43 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+10Pacific/Saipan
How the score comes together
- Temperatureweight 50 %83 %
- Sunshineweight 20 %77 %
- Few rainy daysweight 30 %16 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
- Windproof jacket
Saipan in December: quick answers
Is Saipan hot in December?
Yes. In December, Saipan is hot: daytime highs average 28 °C and nights stay around 26 °C.
Can you swim in Saipan in December?
Yes. In December the sea averages 28.5 °C – lovely and warm for swimming.
Does it rain much in Saipan in December?
It rains often – on about 16 days, adding up to 71 mm.
Saipan month by month
The whole year in SaipanAll destinations: Northern Mariana IslandsWhere to go in DecemberSea temperature in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences