Liberia weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Liberia in September. Check more long-term weather averages for Liberia in September before you book your next holiday to Costa Rica in 2025/2026.

  • 30°C maximum daytime temperature in September in Liberia30
    30°C max day temperature
  • 5 hours of sunshine per day
  • 23 days with some rainfall in September in Liberia23
    23 days with some rainfall
  • 23°C minimum night-time temperature in September in Liberia23
    23°C min night temperature
  • 12 hours of daylight per day in September in Liberia12
    12 hours of daylight per day
  • High heat & humidity in September in LiberiaH
    High heat & humidity
  • 364 mm monthly rainfall in September in Liberia364
    364 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Liberia11
    11+ (Extreme) UV index

More about Liberia

Liberia by month

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The September weather guide for Costa Rica (Liberia) 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 Costa Rica

How hot is it in Liberia in September?

Daytime temperatures usually reach 30°C in Liberia in September with high heat and humidity, falling to 23°C at night.

How sunny is it in Liberia in September?

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

Does it rain in Liberia in September?

There are usually 23 days with some rain in Liberia in September and the average monthly rainfall is 364mm.

Liberia September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:32 17:51
Monday, 15th September 2025 05:31 17:42
Tuesday, 30th September 2025 05:31 17:32

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