Tinian weather in December 2025

Expect daytime maximum temperatures of 86°F in Tinian, Northern Mariana Islands in December and high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 22 days with some rainfall and typically 4.8 inches of rainfall in the month.

  • 86°F maximum daytime temperature in December in Tinian86
    86°F max day temperature
  • 5 hours of sunshine per day
  • 22 days with some rainfall in December in Tinian22
    22 days with some rainfall
  • 75°F minimum night-time temperature in December in Tinian75
    75°F min night temperature
  • 11 hours of daylight per day in December in Tinian11
    11 hours of daylight per day
  • High heat & humidity in December in TinianH
    High heat & humidity
  • 4.8 inches monthly rainfall in December in Tinian4.8
    4.8 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in December in Tinian9
    9 (Very High) UV index
  • 82°F sea temperature in December in Tinian82
    82°F sea temperature

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The December weather guide for Northern Mariana Islands (Tinian) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Tinian in December?

Daytime temperatures usually reach 86°F in Tinian in December with high heat and humidity, falling to 75°F at night.

How sunny is it in Tinian in December?

There are normally 5 hours of bright sunshine each day in Tinian in December - that's 42% of daylight hours.

How warm is the sea around Tinian in December?

The average sea temperature around Tinian in December is 82°F.

Does it rain in Tinian in December?

There are usually 22 days with some rain in Tinian in December and the average monthly rainfall is 4.8 inches.

What is the chance of a typhoon in Tinian in December?

On average less than 1 day in December in Tinian is likely to be affected by the passage of one or more tropical storms.

Tinian December sunrise & sunset times

Browse the sunrise and sunset times for Tinian in December 2025. Select a month to view Tinian sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:27 17:46
Tuesday, 16th December 2025 06:36 17:50
Wednesday, 31st December 2025 06:43 17:58

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