Swansea weather live forecast

Today's maximum temperature in Swansea is expected to be 19°C. Select a day from the live weather forecast for Swansea, Wales, UK for more weather parameters.

5-day weather forecast updated at 04:02 on Friday 19th September 2025 GMT

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

Swansea weather forecast by day

Below are the detailed weather forecasts for Swansea for the next 5 days.

Swansea weather for Friday 19th September 2025

Expect broken clouds in Swansea, Wales with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south.

  • 19°C maximum temperature19
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 19°C wind chill19
    °C wind chill
  • Gentle breeze of 15 kph from the South15
    kph wind from S

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Swansea weather for Saturday 20th September 2025

Expect isolated thunderstorms in Swansea, Wales with a maximum temperature of 16°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 20-30 mm of rainfall expected with 83% chance of some rain and a gentle breeze of 17 kph from the south.

  • 16°C maximum temperature16
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 83% chance of some rain83
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Gentle breeze of 17 kph from the South17
    kph wind from S

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Swansea weather for Sunday 21st September 2025

Expect scattered clouds in Swansea, Wales with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north.

  • 14°C maximum temperature14
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 14°C wind chill14
    °C wind chill
  • Gentle breeze of 18 kph from the North18
    kph wind from N

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Swansea weather for Monday 22nd September 2025

Expect clear skies in Swansea, Wales with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north.

  • 14°C maximum temperature14
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Clear skies
    clear skies
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 16 kph from the North16
    kph wind from N

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Swansea weather for Tuesday 23rd September 2025

Expect broken clouds in Swansea, Wales with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-east.

  • 15°C maximum temperature15
    °C maximum temperature
  • 2°C minimum temperature2
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Gentle breeze of 19 kph from the North-East19
    kph wind from NE

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

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