Costa Rica weather live forecast

Today's maximum temperature in Costa Rica is expected to be 26°C. Select a day from the live weather forecast for Costa Rica (San Jose) for more weather parameters.

5-day weather forecast updated at 04:00 on Tuesday 16th September 2025 GMT

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

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Below are temperatures expected today at popular countries, regions and places in Costa Rica. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

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Costa Rica weather forecast by day

Below are the detailed weather forecasts for Costa Rica for the next 5 days. The forecasts shown are for San Jose and may not represent the whole of Costa Rica. Browse more destinations in Costa Rica to view more weather forecasts.

Costa Rica weather for Tuesday 16th September 2025

Expect isolated thunderstorms in Costa Rica with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 80% chance of some rain and a gentle breeze of 18 kph from the east.

  • 26°C maximum temperature26
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 80% chance of some rain80
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 18 kph from the East18
    kph wind from E

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Costa Rica weather for Wednesday 17th September 2025

Expect isolated thunderstorms in Costa Rica with a maximum temperature of 23°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 30-40 mm of rainfall expected with 92% chance of some rain and a gentle breeze of 18 kph from the west.

  • 23°C maximum temperature23
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 92% chance of some rain92
    % chance of some rain
  • 30-40 mm of rainfall expected<40
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 18 kph from the West18
    kph wind from W

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Costa Rica weather for Thursday 18th September 2025

Expect isolated thunderstorms in Costa Rica with a maximum temperature of 23°C, maximum UV of 6 (High) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 93% chance of some rain and a gentle breeze of 15 kph from the west.

  • 23°C maximum temperature23
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 93% chance of some rain93
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 23°C wind chill23
    °C wind chill
  • Gentle breeze of 15 kph from the West15
    kph wind from W

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Costa Rica weather for Friday 19th September 2025

Expect isolated thunderstorms in Costa Rica with a maximum temperature of 25°C, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 76% chance of some rain and a gentle breeze of 17 kph from the east.

  • 25°C maximum temperature25
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 76% chance of some rain76
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 25°C wind chill25
    °C wind chill
  • Gentle breeze of 17 kph from the East17
    kph wind from E

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Costa Rica weather for Saturday 20th September 2025

Expect isolated thunderstorms in Costa Rica with a maximum temperature of 25°C, maximum UV of 11+ (Extreme) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 95% chance of some rain and a gentle breeze of 18 kph from the west.

  • 25°C maximum temperature25
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 95% chance of some rain95
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 18 kph from the West18
    kph wind from W

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Metric (°C / mm)  |  Imperial (°F / inches)

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