Caernarfon weather live forecast

Tomorrow's maximum temperature in Caernarfon is expected to be 13°C.

  • Friday
    18th Apr
    Mostly cloudy with light rain (2-5 mm of rainfall expected)
  • Saturday
    19th Apr
    Sunshine and showers (5-10 mm of rainfall expected)
  • Sunday
    20th Apr
    Scattered clouds
  • Monday
    21st Apr
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Tuesday
    22nd Apr
    Sunshine and showers (0-2 mm of rainfall expected)

5-day weather forecast updated at 04:03 on Thursday 17th April 2025 GMT

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

Caernarfon weather forecast by day

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

Caernarfon weather for Friday 18th April 2025

Expect mostly cloudy with light rain in Caernarfon, Wales with a maximum temperature of 13°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 80% chance of some rain and a moderate breeze of 25 kph from the south-east.

  • 13°C maximum temperature13
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 80% chance of some rain80
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 13°C wind chill13
    °C wind chill
  • Moderate breeze of 25 kph from the South-East25
    kph wind from SE

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Caernarfon weather for Saturday 19th April 2025

Expect sunshine and showers in Caernarfon, Wales with a maximum temperature of 12°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 62% chance of some rain and a moderate breeze of 24 kph from the east.

  • 12°C maximum temperature12
    °C maximum temperature
  • 8°C minimum temperature8
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 62% chance of some rain62
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 24 kph from the East24
    kph wind from E

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Caernarfon weather for Sunday 20th April 2025

Expect scattered clouds in Caernarfon, Wales with a maximum temperature of 12°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the east.

  • 12°C maximum temperature12
    °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 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 13 kph from the East13
    kph wind from E

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Caernarfon weather for Monday 21st April 2025

Expect mostly cloudy with light rain in Caernarfon, Wales with a maximum temperature of 13°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 51% chance of some rain and a gentle breeze of 18 kph from the south.

  • 13°C maximum temperature13
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 51% chance of some rain51
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 13°C wind chill13
    °C wind chill
  • Gentle breeze of 18 kph from the South18
    kph wind from S

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Caernarfon weather for Tuesday 22nd April 2025

Expect sunshine and showers in Caernarfon, Wales with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 48% chance of some rain and a gentle breeze of 16 kph from the south-west.

  • 13°C maximum temperature13
    °C maximum temperature
  • 8°C minimum temperature8
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 48% chance of some rain48
    % 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 South-West16
    kph wind from SW

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

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