Cardiff weather live forecast

Today's maximum temperature in Cardiff is expected to be 9°C. Select a day from the live weather forecast for Cardiff, Wales, UK for more weather parameters.

  • Tuesday
    16th Dec
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Wednesday
    17th Dec
    Cloudy with some rain (20-30 mm of rainfall expected)
  • Thursday
    18th Dec
    Cloudy with some rain (20-30 mm of rainfall expected)
  • Friday
    19th Dec
    Broken clouds
  • Saturday
    20th Dec
    Mostly cloudy with rain (5-10 mm of rainfall expected)

5-day weather forecast updated at 04:00 on Tuesday 16th December 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.

Cardiff weather forecast by day

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

Cardiff weather for Tuesday 16th December 2025

Expect mostly cloudy with light rain in Cardiff, Wales with a maximum temperature of 9°C and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 5% chance of some rain and a light breeze of 10 kph from the north-west.

  • 9°C maximum temperature9
    °C maximum temperature
  • 2°C minimum temperature2
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 5% chance of some rain5
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 8°C wind chill8
    °C wind chill
  • Light breeze of 10 kph from the North-West10
    kph wind from NW

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Cardiff weather for Wednesday 17th December 2025

Expect cloudy with some rain in Cardiff, Wales with a maximum temperature of 11°C and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 95% chance of some rain and a moderate breeze of 25 kph from the south.

  • 11°C maximum temperature11
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 95% chance of some rain95
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • 11°C wind chill11
    °C wind chill
  • Moderate breeze of 25 kph from the South25
    kph wind from S

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Cardiff weather for Thursday 18th December 2025

Expect cloudy with some rain in Cardiff, Wales with a maximum temperature of 11°C and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 81% chance of some rain and a gentle breeze of 19 kph from the south-west.

  • 11°C maximum temperature11
    °C maximum temperature
  • 7°C minimum temperature7
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 81% chance of some rain81
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 19 kph from the South-West19
    kph wind from SW

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Cardiff weather for Friday 19th December 2025

Expect broken clouds in Cardiff, Wales with a maximum temperature of 10°C and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

  • 10°C maximum temperature10
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 7°C wind chill7
    °C wind chill
  • Moderate breeze of 20 kph from the West20
    kph wind from W

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Cardiff weather for Saturday 20th December 2025

Expect mostly cloudy with rain in Cardiff, Wales with a maximum temperature of 9°C and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 65% chance of some rain and a gentle breeze of 18 kph from the south-west.

  • 9°C maximum temperature9
    °C maximum temperature
  • 5°C minimum temperature5
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 65% chance of some rain65
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 7°C wind chill7
    °C wind chill
  • Gentle breeze of 18 kph from the South-West18
    kph wind from SW

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  • Prices based on lowest saver room rates. T&Cs apply
  • Travel before 8th October 2026 (inclusive)

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

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