Porthmadog weather live forecast

Today's maximum temperature in Porthmadog is expected to be 9°C. Select a day from the live weather forecast for Porthmadog, Wales, UK for more weather parameters.

Wednesday
28th Jan
9

4

6

0
Thursday
29th Jan
7

4

3

0
Friday
30th Jan
9

5

2

0
Saturday
31st Jan
9

4

3

1
Sunday
1st Feb
9

4

1

0

5-day weather forecast updated at 04:04 on Wednesday 28th January 2026 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 Wednesday 28th January 2026

Expect sunshine and showers in Porthmadog, Wales with a maximum temperature of 9°C and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 13% chance of some rain and a gentle breeze of 19 kph from the east.

9
°C maximum temperature
4
°C minimum temperature
sunshine and showers
6
hours of sunshine
0
UV index (None)
13
% chance of some rain
<2
mm of rainfall expected
6
°C wind chill
19
kph wind from E

Porthmadog weather for Thursday 29th January 2026

Expect mostly cloudy with light rain in Porthmadog, Wales with a maximum temperature of 7°C and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 62% chance of some rain and a fresh breeze of 31 kph from the east.

7
°C maximum temperature
4
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
0
UV index (None)
62
% chance of some rain
<2
mm of rainfall expected
2
°C wind chill
31
kph wind from E

Porthmadog weather for Friday 30th January 2026

Expect mostly cloudy with light rain in Porthmadog, Wales with a maximum temperature of 9°C and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 58% chance of some rain and a moderate breeze of 28 kph from the south-east.

9
°C maximum temperature
5
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
58
% chance of some rain
<5
mm of rainfall expected
5
°C wind chill
28
kph wind from SE

Porthmadog weather for Saturday 31st January 2026

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 9°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 55% chance of some rain and a light breeze of 10 kph from the south.

9
°C maximum temperature
4
°C minimum temperature
mostly cloudy with rain
3
hours of sunshine
1
UV index (Low)
55
% chance of some rain
<10
mm of rainfall expected
7
°C wind chill
10
kph wind from S

Porthmadog weather for Sunday 1st February 2026

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 9°C and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 62% chance of some rain and a gentle breeze of 16 kph from the south.