La Fortuna weather in December 2025

Expect 29°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in La Fortuna in December based on long-term weather averages. There is usually 14 days with some rainfall and 271 mm of average monthly rainfall in December.

  • 29°C maximum daytime temperature in December in La Fortuna29
    29°C max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in December in La Fortuna14
    14 days with some rainfall
  • 21°C minimum night-time temperature in December in La Fortuna21
    21°C min night temperature
  • 12 hours of daylight per day in December in La Fortuna12
    12 hours of daylight per day
  • High heat & humidity in December in La FortunaH
    High heat & humidity
  • 271 mm monthly rainfall in December in La Fortuna271
    271 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in December in La Fortuna10
    10 (Very High) UV index

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La Fortuna by month

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The December weather guide for Costa Rica (La Fortuna) 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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How hot is it in La Fortuna in December?

Daytime temperatures usually reach 29°C in La Fortuna in December with high heat and humidity, falling to 21°C at night.

How sunny is it in La Fortuna in December?

There are normally 6 hours of bright sunshine each day in La Fortuna in December - that's 48% of daylight hours.

Does it rain in La Fortuna in December?

There are usually 14 days with some rain in La Fortuna in December and the average monthly rainfall is 271mm.

La Fortuna December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 05:41 17:14
Tuesday, 16th December 2025 05:49 17:20
Wednesday, 31st December 2025 05:56 17:28

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