La Fortuna weather live forecast

Today's maximum temperature in La Fortuna is expected to be 81°F. Select a day from the live weather forecast for La Fortuna, Costa Rica for more weather parameters.

5-day weather forecast updated at 04:03 on Thursday 18th September 2025 GMT

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The 5-day weather forecast for Costa Rica (La Fortuna) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

La Fortuna weather forecast by day

Below are the detailed weather forecasts for La Fortuna for the next 5 days.

La Fortuna weather for Thursday 18th September 2025

Expect isolated thunderstorms in La Fortuna, Costa Rica with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 88% chance of some rain and a light breeze of 4 mph from the north-east.

  • 81°F maximum temperature81
    °F maximum temperature
  • 70°F minimum temperature70
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 88% chance of some rain88
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 4 mph from the North-East4
    mph wind from NE

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La Fortuna weather for Friday 19th September 2025

Expect broken clouds in La Fortuna, Costa Rica with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 mph from the north-east.

  • 81°F maximum temperature81
    °F maximum temperature
  • 70°F minimum temperature70
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Little or no wind of 4 mph from the North-East4
    mph wind from NE

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La Fortuna weather for Saturday 20th September 2025

Expect isolated thunderstorms in La Fortuna, Costa Rica with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 70% chance of some rain and a light breeze of 6 mph from the north-east.

  • 84°F maximum temperature84
    °F maximum temperature
  • 70°F minimum temperature70
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 70% chance of some rain70
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 6 mph from the North-East6
    mph wind from NE

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La Fortuna weather for Sunday 21st September 2025

Expect isolated thunderstorms in La Fortuna, Costa Rica with a maximum temperature of 82°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 85% chance of some rain and a light breeze of 5 mph from the east.

  • 82°F maximum temperature82
    °F maximum temperature
  • 70°F minimum temperature70
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 85% chance of some rain85
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 5 mph from the East5
    mph wind from E

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La Fortuna weather for Monday 22nd September 2025

Expect broken clouds in La Fortuna, Costa Rica with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 11+ (Extreme) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 5 mph from the east.

  • 82°F maximum temperature82
    °F maximum temperature
  • 68°F minimum temperature68
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 5 mph from the East5
    mph wind from E

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  • FREE child places available for select holidays
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