Porthmadog weather live forecast

Tomorrow's maximum temperature in Porthmadog is expected to be 55°F.

5-day weather forecast updated at 04:03 on Saturday 24th May 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 Sunday 25th May 2025

Expect sunshine and showers in Porthmadog, Wales with a maximum temperature of 55°F, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 81% chance of some rain and a fresh breeze of 21 mph from the west.

  • 55°F maximum temperature55
    °F maximum temperature
  • 48°F minimum temperature48
    °F minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 81% chance of some rain81
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 55°F wind chill55
    °F wind chill
  • Fresh breeze of 21 mph from the West21
    mph wind from W

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Porthmadog weather for Monday 26th May 2025

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 55°F, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 93% chance of some rain and a fresh breeze of 22 mph from the south-west.

  • 55°F maximum temperature55
    °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
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 93% chance of some rain93
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 55°F wind chill55
    °F wind chill
  • Fresh breeze of 22 mph from the South-West22
    mph wind from SW

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Porthmadog weather for Tuesday 27th May 2025

Expect cloudy with some rain in Porthmadog, Wales with a maximum temperature of 59°F, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 91% chance of some rain and a strong breeze of 27 mph from the south-west.

  • 59°F maximum temperature59
    °F maximum temperature
  • 52°F minimum temperature52
    °F minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 91% chance of some rain91
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • 59°F wind chill59
    °F wind chill
  • Strong breeze of 27 mph from the South-West27
    mph wind from SW

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Porthmadog weather for Wednesday 28th May 2025

Expect mostly cloudy with light rain in Porthmadog, Wales with a maximum temperature of 61°F, maximum UV of 5 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 79% chance of some rain and a moderate breeze of 17 mph from the west.

  • 61°F maximum temperature61
    °F maximum temperature
  • 52°F minimum temperature52
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 79% chance of some rain79
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 61°F wind chill61
    °F wind chill
  • Moderate breeze of 17 mph from the West17
    mph wind from W

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Porthmadog weather for Thursday 29th May 2025

Expect cloudy with some rain in Porthmadog, Wales with a maximum temperature of 63°F, maximum UV of 2 (Low) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 66% chance of some rain and a fresh breeze of 18 mph from the south-west.

  • 63°F maximum temperature63
    °F maximum temperature
  • 52°F minimum temperature52
    °F minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 66% chance of some rain66
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • 63°F wind chill63
    °F wind chill
  • Fresh breeze of 18 mph from the South-West18
    mph wind from SW

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