Porthmadog weather live forecast

Tomorrow's maximum temperature in Porthmadog is expected to be 15°C.

  • Friday
    25th Apr
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Saturday
    26th Apr
    Mostly cloudy with rain (5-10 mm of rainfall expected)
  • Sunday
    27th Apr
    Broken clouds
  • Monday
    28th Apr
    Scattered clouds
  • Tuesday
    29th Apr
    Scattered clouds

5-day weather forecast updated at 04:03 on Friday 25th April 2025 GMT

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

Porthmadog weather forecast by day

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

Porthmadog weather for Friday 25th April 2025

Expect mostly cloudy with light rain in Porthmadog, Wales with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 56% chance of some rain and a gentle breeze of 17 kph from the south.

  • 15°C maximum temperature15
    °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 3 (Moderate)3
    UV index (Moderate)
  • 56% chance of some rain56
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Gentle breeze of 17 kph from the South17
    kph wind from S

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Porthmadog weather for Saturday 26th April 2025

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 13°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 40% chance of some rain and a light breeze of 10 kph from the south-west.

  • 13°C maximum temperature13
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 40% chance of some rain40
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 10 kph from the South-West10
    kph wind from SW

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Porthmadog weather for Sunday 27th April 2025

Expect broken clouds in Porthmadog, 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 moderate breeze of 20 kph from the south-west.

  • 15°C maximum temperature15
    °C maximum temperature
  • 8°C minimum temperature8
    °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
  • Moderate breeze of 20 kph from the South-West20
    kph wind from SW

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Porthmadog weather for Monday 28th April 2025

Expect scattered clouds in Porthmadog, Wales with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south-west.

  • 19°C maximum temperature19
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 10 kph from the South-West10
    kph wind from SW

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Porthmadog weather for Tuesday 29th April 2025

Expect scattered clouds in Porthmadog, Wales with a maximum temperature of 23°C, maximum UV of 5 (Moderate) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north-east.

  • 23°C maximum temperature23
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 13 hours of bright sunshine13
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 23°C wind chill23
    °C wind chill
  • Light breeze of 9 kph from the North-East9
    kph wind from NE

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

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