La Fortuna weather in August 2025

Expect 29°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in La Fortuna in August. Check more long-term weather averages for La Fortuna in August before you book your next holiday to Costa Rica in 2025/2026.

  • 29°C maximum daytime temperature in August in La Fortuna29
    29°C max day temperature
  • 6 hours of sunshine per day
  • 22 days with some rainfall in August in La Fortuna22
    22 days with some rainfall
  • 22°C minimum night-time temperature in August in La Fortuna22
    22°C min night temperature
  • 12 hours of daylight per day in August in La Fortuna12
    12 hours of daylight per day
  • High heat & humidity in August in La FortunaH
    High heat & humidity
  • 426 mm monthly rainfall in August in La Fortuna426
    426 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in La Fortuna11
    11+ (Extreme) UV index

More about La Fortuna

La Fortuna by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Costa Rica

TUI: up to 7% off holidays booked online

  • Book online with TUI & save up to 7% on holidays
  • FREE child places available for select holidays
  • Pay £0 deposits with direct debit & spread the cost
Go to TUI deal >>

View all TUI offers

TUITUI deal finder

The August 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)

Back to top

More about Costa Rica

How hot is it in La Fortuna in August?

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

How sunny is it in La Fortuna in August?

There are normally 6 hours of bright sunshine each day in La Fortuna in August - that's 45% of daylight hours.

Does it rain in La Fortuna in August?

There are usually 22 days with some rain in La Fortuna in August and the average monthly rainfall is 426mm.

La Fortuna August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:28 18:02
Saturday, 16th August 2025 05:29 17:56
Sunday, 31st August 2025 05:29 17:48

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^