Terceira weather in December 2025

Expect daytime maximum temperatures of 59°F in Terceira, Azores in December based on long-term weather averages. There are 3 hours of sunshine per day on average with 18 days with some rainfall and typically 4.7 inches of rainfall in the month.

  • 59°F maximum daytime temperature in December in Terceira59
    59°F max day temperature
  • 3 hours of sunshine per day
  • 18 days with some rainfall in December in Terceira18
    18 days with some rainfall
  • 52°F minimum night-time temperature in December in Terceira52
    52°F min night temperature
  • 10 hours of daylight per day in December in Terceira10
    10 hours of daylight per day
  • No heat & humidity in December in Terceira0
    No heat & humidity
  • 4.7 inches monthly rainfall in December in Terceira4.7
    4.7 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Terceira2
    2 (Low) UV index
  • 63°F sea temperature in December in Terceira63
    63°F sea temperature

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The December weather guide for Azores (Terceira) 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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More about Portugal

How warm is it in Terceira in December?

Daytime temperatures usually reach 63°F in Terceira in December, falling to 54°F at night.

How sunny is it in Terceira in December?

There are normally 3 hours of bright sunshine each day in Terceira in December - that's 31% of daylight hours.

How warm is the sea around Terceira in December?

The average sea temperature around Terceira in December is 64°F.

Does it rain in Terceira in December?

There are usually 20 days with some rain in Terceira in December and the average monthly rainfall is 4.9 inches.

Terceira December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:48 17:28
Tuesday, 16th December 2025 08:00 17:29
Wednesday, 31st December 2025 08:07 17:38

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