San Jose weather live forecast

Today's maximum temperature in San Jose is expected to be 24°C. Select a day from the live weather forecast for San Jose, Costa Rica for more weather parameters.

5-day weather forecast updated at 04:00 on Wednesday 17th 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.

San Jose weather forecast by day

Below are the detailed weather forecasts for San Jose for the next 5 days.

San Jose weather for Tuesday 16th September 2025

Expect isolated thunderstorms in San Jose, Costa Rica with a maximum temperature of 24°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 77% chance of some rain and a gentle breeze of 15 kph from the east.

  • 24°C maximum temperature24
    °C maximum temperature
  • 18°C minimum temperature18
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 77% chance of some rain77
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 24°C wind chill24
    °C wind chill
  • Gentle breeze of 15 kph from the East15
    kph wind from E

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San Jose weather for Wednesday 17th September 2025

Expect isolated thunderstorms in San Jose, Costa Rica with a maximum temperature of 25°C, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 91% chance of some rain and a gentle breeze of 15 kph from the west.

  • 25°C maximum temperature25
    °C maximum temperature
  • 18°C minimum temperature18
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 91% chance of some rain91
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • 25°C wind chill25
    °C wind chill
  • Gentle breeze of 15 kph from the West15
    kph wind from W

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San Jose weather for Thursday 18th September 2025

Expect isolated thunderstorms in San Jose, Costa Rica with a maximum temperature of 23°C, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 84% chance of some rain and a gentle breeze of 14 kph from the west.

  • 23°C maximum temperature23
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 84% chance of some rain84
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 14 kph from the West14
    kph wind from W

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San Jose weather for Friday 19th September 2025

Expect isolated thunderstorms in San Jose, Costa Rica with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 83% chance of some rain and a gentle breeze of 17 kph from the east.

  • 26°C maximum temperature26
    °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 9 (Very High)9
    UV index (Very High)
  • 83% chance of some rain83
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 17 kph from the East17
    kph wind from E

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San Jose weather for Saturday 20th September 2025

Expect isolated thunderstorms in San Jose, Costa Rica with a maximum temperature of 25°C, maximum UV of 8 (Very High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 93% chance of some rain and a gentle breeze of 16 kph from the west.

  • 25°C maximum temperature25
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 93% chance of some rain93
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 16 kph from the West16
    kph wind from W

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

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