San Sebastian weather live forecast

Today's maximum temperature in San Sebastian is expected to be 33°C. Select a day from the live weather forecast for San Sebastian, Spain for more weather parameters.

5-day weather forecast updated at 04:02 on Sunday 10th August 2025 GMT

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

San Sebastian weather forecast by day

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

San Sebastian weather for Monday 11th August 2025

Expect scattered clouds in San Sebastian, Spain with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-west.

  • 33°C maximum temperature33
    °C maximum temperature
  • 23°C minimum temperature23
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 12 kph from the North-West12
    kph wind from NW

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San Sebastian weather for Tuesday 12th August 2025

Expect scattered clouds in San Sebastian, Spain with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north.

  • 33°C maximum temperature33
    °C maximum temperature
  • 22°C minimum temperature22
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 10 kph from the North10
    kph wind from N

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San Sebastian weather for Wednesday 13th August 2025

Expect broken clouds in San Sebastian, Spain with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south.

  • 29°C maximum temperature29
    °C maximum temperature
  • 23°C minimum temperature23
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 8 kph from the South8
    kph wind from S

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San Sebastian weather for Thursday 14th August 2025

Expect isolated thunderstorms in San Sebastian, Spain with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a gentle breeze of 13 kph from the north.

  • 26°C maximum temperature26
    °C maximum temperature
  • 22°C minimum temperature22
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 25% chance of some rain25
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 13 kph from the North13
    kph wind from N

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San Sebastian weather for Friday 15th August 2025

Expect isolated thunderstorms in San Sebastian, Spain with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 13% chance of some rain and a light breeze of 11 kph from the north.

  • 31°C maximum temperature31
    °C maximum temperature
  • 21°C minimum temperature21
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 13% chance of some rain13
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 11 kph from the North11
    kph wind from N

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

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