Porthmadog weather live forecast

Today's maximum temperature in Porthmadog is expected to be 16°C. 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 Friday 3rd October 2025 GMT

More about Porthmadog

Porthmadog by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Wales

Parkdean Resorts: UK summer 2025 holiday deals

  • Book summer 2025 UK breaks with £25 deposits
  • Parks located in Devon, Cornwall, Scotland & more
  • Search by destinations, dates, accommodation types
Go to Parkdean Resorts deal >>

View all Parkdean Resorts offers

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 3rd October 2025

Expect isolated thunderstorms in Porthmadog, Wales with a maximum temperature of 16°C and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 94% chance of some rain and a moderate gale of 57 kph from the south-west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 94% chance of some rain94
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Moderate gale of 57 kph from the South-West57
    kph wind from SW

Back to top

Porthmadog weather for Saturday 4th October 2025

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 12°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 84% chance of some rain and a strong breeze of 51 kph from the west.

  • 12°C maximum temperature12
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 84% chance of some rain84
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 12°C wind chill12
    °C wind chill
  • Strong breeze of 51 kph from the West51
    kph wind from W

Back to top

Porthmadog weather for Sunday 5th October 2025

Expect mostly cloudy with light rain in Porthmadog, Wales with a maximum temperature of 14°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 55% chance of some rain and a fresh breeze of 35 kph from the west.

  • 14°C maximum temperature14
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 55% chance of some rain55
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 35 kph from the West35
    kph wind from W

Back to top

Porthmadog weather for Monday 6th October 2025

Expect overcast skies in Porthmadog, Wales with a maximum temperature of 16°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 34 kph from the south-west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Overcast skies
    overcast skies
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 34 kph from the South-West34
    kph wind from SW

Back to top

Porthmadog weather for Tuesday 7th October 2025

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 16°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 72% chance of some rain and a fresh breeze of 37 kph from the south-west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 72% chance of some rain72
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Fresh breeze of 37 kph from the South-West37
    kph wind from SW

Back to top

Alfa Travel: Supersaver UK holiday offers

  • Explore latest supersaver deals on UK coach breaks
  • Save on UK holidays to flexible destinations
  • Filter deals by date, departure point & duration
Go to Alfa Travel deal >>

View all Alfa Travel offers

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

Back to top

More about Wales

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^