Dominical weather in September 2025

Expect 29°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Dominical in September. Check more long-term weather averages for Dominical in September before you book your next holiday to Costa Rica in 2025/2026.

  • 29°C maximum daytime temperature in September in Dominical29
    29°C max day temperature
  • 5 hours of sunshine per day
  • 22 days with some rainfall in September in Dominical22
    22 days with some rainfall
  • 22°C minimum night-time temperature in September in Dominical22
    22°C min night temperature
  • 12 hours of daylight per day in September in Dominical12
    12 hours of daylight per day
  • High heat & humidity in September in DominicalH
    High heat & humidity
  • 471 mm monthly rainfall in September in Dominical471
    471 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Dominical11
    11+ (Extreme) UV index
  • 28°C sea temperature in September in Dominical28
    28°C sea temperature

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The September weather guide for Costa Rica (Dominical) 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 Dominical in September?

Daytime temperatures usually reach 29°C in Dominical in September with high heat and humidity, falling to 22°C at night.

How sunny is it in Dominical in September?

There are normally 5 hours of bright sunshine each day in Dominical in September - that's 44% of daylight hours.

How warm is the sea around Dominical in September?

The average sea temperature around Dominical in September is 28°C.

Does it rain in Dominical in September?

There are usually 22 days with some rain in Dominical in September and the average monthly rainfall is 471mm.

Dominical September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:27 17:44
Monday, 15th September 2025 05:25 17:35
Tuesday, 30th September 2025 05:24 17:26

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