Jaco weather in August 2025

Expect 30°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Jaco in August. Check more long-term weather averages for Jaco in August before you book your next holiday to Costa Rica in 2025/2026.

  • 30°C maximum daytime temperature in August in Jaco30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 22 days with some rainfall in August in Jaco22
    22 days with some rainfall
  • 23°C minimum night-time temperature in August in Jaco23
    23°C min night temperature
  • 12 hours of daylight per day in August in Jaco12
    12 hours of daylight per day
  • Very high heat & humidity in August in JacoVH
    Very High heat & humidity
  • 372 mm monthly rainfall in August in Jaco372
    372 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Jaco11
    11+ (Extreme) UV index
  • 28°C sea temperature in August in Jaco28
    28°C sea temperature

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The August weather guide for Costa Rica (Jaco) 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 Jaco in August?

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

How sunny is it in Jaco in August?

There are normally 6 hours of bright sunshine each day in Jaco in August - that's 48% of daylight hours.

How warm is the sea around Jaco in August?

The average sea temperature around Jaco in August is 28°C.

Does it rain in Jaco in August?

There are usually 22 days with some rain in Jaco in August and the average monthly rainfall is 372mm.

Jaco August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:29 18:01
Saturday, 16th August 2025 05:30 17:55
Sunday, 31st August 2025 05:30 17:48

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