Wales weather live forecast

Today's maximum temperature in Wales is expected to be 20°C. Select a day from the live weather forecast for Wales (Cardiff), UK for more weather parameters.

5-day weather forecast updated at 04:00 on Thursday 18th September 2025 GMT

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The 5-day weather forecast for Wales (Cardiff) 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 Wales. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

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Wales weather forecast by day

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

Wales weather for Thursday 18th September 2025

Expect mostly cloudy with light rain in Wales with a maximum temperature of 20°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 18% chance of some rain and a moderate breeze of 21 kph from the south-west.

  • 20°C maximum temperature20
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 18% chance of some rain18
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 20°C wind chill20
    °C wind chill
  • Moderate breeze of 21 kph from the South-West21
    kph wind from SW

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Wales weather for Friday 19th September 2025

Expect broken clouds in Wales with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

  • 19°C maximum temperature19
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 11 kph from the South11
    kph wind from S

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Wales weather for Saturday 20th September 2025

Expect mostly cloudy with light rain in Wales with a maximum temperature of 19°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 62% chance of some rain and a light breeze of 12 kph from the south-west.

  • 19°C maximum temperature19
    °C maximum temperature
  • 13°C minimum temperature13
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 62% chance of some rain62
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 12 kph from the South-West12
    kph wind from SW

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Wales weather for Sunday 21st September 2025

Expect sunshine and showers in Wales with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 55% chance of some rain and a light breeze of 12 kph from the south-west.

  • 15°C maximum temperature15
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 55% chance of some rain55
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Light breeze of 12 kph from the South-West12
    kph wind from SW

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Wales weather for Monday 22nd September 2025

Expect sunshine and showers in Wales with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 31% chance of some rain and a moderate breeze of 22 kph from the north-east.

  • 15°C maximum temperature15
    °C maximum temperature
  • 8°C minimum temperature8
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 31% chance of some rain31
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Moderate breeze of 22 kph from the North-East22
    kph wind from NE

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

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