Sao Joao weather in December 2025

Expect daytime maximum temperatures of 16°C in Sao Joao in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 99 mm of rainfall in the month.

  • 16°C maximum daytime temperature in December in Sao Joao16
    16°C max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in December in Sao Joao12
    12 days with some rainfall
  • 9°C minimum night-time temperature in December in Sao Joao9
    9°C min night temperature
  • 10 hours of daylight per day in December in Sao Joao10
    10 hours of daylight per day
  • No heat & humidity in December in Sao Joao0
    No heat & humidity
  • 99 mm monthly rainfall in December in Sao Joao99
    99 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Sao Joao2
    2 (Low) UV index
  • 17°C sea temperature in December in Sao Joao17
    17°C sea temperature

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Sao Joao by month

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The December weather guide for Algarve (Sao Joao) 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 / mm)  |  Imperial (°F / inches)

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More about the Algarve

How warm is it in Sao Joao in December?

Daytime temperatures usually reach 16°C in Sao Joao in December, falling to 9°C at night.

How sunny is it in Sao Joao in December?

There are normally 5 hours of bright sunshine each day in Sao Joao in December - that's 55% of daylight hours.

How warm is the sea around Sao Joao in December?

The average sea temperature around Sao Joao in December is 17°C.

Does it rain in Sao Joao in December?

There are usually 12 days with some rain in Sao Joao in December and the average monthly rainfall is 99mm.

Sao Joao December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:28 17:16
Tuesday, 16th December 2025 07:40 17:17
Wednesday, 31st December 2025 07:46 17:26

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