Porthmadog weather live forecast

Today's maximum temperature in Porthmadog is expected to be 46°F. Select a day from the live weather forecast for Porthmadog, Wales, UK for more weather parameters.

5-day weather forecast updated at 04:04 on Thursday 4th December 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 Thursday 4th December 2025

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 46°F and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 63% chance of some rain and a moderate breeze of 12 mph from the west.

  • 46°F maximum temperature46
    °F maximum temperature
  • 41°F minimum temperature41
    °F minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 63% chance of some rain63
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 41°F wind chill41
    °F wind chill
  • Moderate breeze of 12 mph from the West12
    mph wind from W

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Porthmadog weather for Friday 5th December 2025

Expect overcast with light rain in Porthmadog, Wales with a maximum temperature of 48°F and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 99% chance of some rain and a strong breeze of 26 mph from the south.

  • 48°F maximum temperature48
    °F maximum temperature
  • 43°F minimum temperature43
    °F minimum temperature
  • Overcast with light rain
    overcast with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 99% chance of some rain99
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 41°F wind chill41
    °F wind chill
  • Strong breeze of 26 mph from the South26
    mph wind from S

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Porthmadog weather for Saturday 6th December 2025

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 50°F and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 99% chance of some rain and a fresh breeze of 22 mph from the south-west.

  • 50°F maximum temperature50
    °F maximum temperature
  • 48°F minimum temperature48
    °F minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 99% chance of some rain99
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 22 mph from the South-West22
    mph wind from SW

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Porthmadog weather for Sunday 7th December 2025

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 52°F and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 57% chance of some rain and a gentle breeze of 10 mph from the south-west.

  • 52°F maximum temperature52
    °F maximum temperature
  • 46°F minimum temperature46
    °F minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 57% chance of some rain57
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 52°F wind chill52
    °F wind chill
  • Gentle breeze of 10 mph from the South-West10
    mph wind from SW

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Porthmadog weather for Monday 8th December 2025

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 54°F and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 84% chance of some rain and a strong breeze of 24 mph from the south-west.

  • 54°F maximum temperature54
    °F maximum temperature
  • 46°F minimum temperature46
    °F minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 84% chance of some rain84
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 54°F wind chill54
    °F wind chill
  • Strong breeze of 24 mph from the South-West24
    mph wind from SW

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  • Prices based on lowest saver room rates. T&Cs apply
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