Porthmadog weather live forecast

Today's maximum temperature in Porthmadog is expected to be 52°F. Select a day from the live weather forecast for Porthmadog, Wales, UK for more weather parameters.

Sunday
14th Dec
52

50

0

0
Monday
15th Dec
52

46

0

0
Tuesday
16th Dec
48

41

2

0
Wednesday
17th Dec
52

43

0

0
Thursday
18th Dec
52

46

0

0

5-day weather forecast updated at 04:04 on Sunday 14th 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 Sunday 14th December 2025

Expect cloudy with some rain in Porthmadog, Wales with a maximum temperature of 52°F and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 94% chance of some rain and a strong breeze of 29 mph from the south.

52
°F maximum temperature
50
°F minimum temperature
cloudy with some rain
0
hours of sunshine
0
UV index (None)
94
% chance of some rain
<30
mm of rainfall expected
52
°F wind chill
29
mph wind from S

Porthmadog weather for Monday 15th December 2025

Expect overcast with light 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 92% chance of some rain and a strong breeze of 25 mph from the south.

52
°F maximum temperature
46
°F minimum temperature
overcast with light rain
0
hours of sunshine
0
UV index (None)
92
% chance of some rain
<10
mm of rainfall expected
52
°F wind chill
25
mph wind from S

Porthmadog weather for Tuesday 16th December 2025

Expect broken clouds in Porthmadog, Wales with a maximum temperature of 48°F and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the south.

48
°F maximum temperature
41
°F minimum temperature
broken clouds
2
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
43
°F wind chill
11
mph wind from S

Porthmadog weather for Wednesday 17th December 2025

Expect overcast with light rain in Porthmadog, Wales with a maximum temperature of 52°F and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 90% chance of some rain and a strong breeze of 27 mph from the south.

52
°F maximum temperature
43
°F minimum temperature
overcast with light rain
0
hours of sunshine
0
UV index (None)
90
% chance of some rain
<30
mm of rainfall expected
0
no heat & humidity
27
mph wind from S

Porthmadog weather for Thursday 18th December 2025

Expect cloudy with some rain in Porthmadog, Wales with a maximum temperature of 52°F and no hours of bright sunshine. There are 30-40 mm of rainfall expected with 89% chance of some rain and a fresh gale of 42 mph from the south-west.