Porthmadog weather live forecast

Today's maximum temperature in Porthmadog is expected to be 15°C. Select a day from the live weather forecast for Porthmadog, Wales, UK for more weather parameters.

Sunday
7th Jun
15

12

1

3
Monday
8th Jun
14

10

5

5
Tuesday
9th Jun
15

9

4

3
Wednesday
10th Jun
14

10

4

5
Thursday
11th Jun
16

10

0

4

5-day weather forecast updated at 04:03 on Saturday 6th June 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 Sunday 7th June 2026

Expect cloudy with some rain in Porthmadog, Wales with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 96% chance of some rain and a fresh breeze of 33 kph from the south-west.

15
°C maximum temperature
12
°C minimum temperature
cloudy with some rain
1
hour of sunshine
3
UV index (Moderate)
96
% chance of some rain
<20
mm of rainfall expected
15
°C wind chill
33
kph wind from SW

Porthmadog weather for Monday 8th June 2026

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 14°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 75% chance of some rain and a moderate breeze of 28 kph from the south-west.

14
°C maximum temperature
10
°C minimum temperature
mostly cloudy with rain
5
hours of sunshine
5
UV index (Moderate)
75
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
28
kph wind from SW

Porthmadog weather for Tuesday 9th June 2026

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 83% chance of some rain and a fresh breeze of 30 kph from the south-west.

15
°C maximum temperature
9
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
3
UV index (Moderate)
83
% chance of some rain
<10
mm of rainfall expected
15
°C wind chill
30
kph wind from SW

Porthmadog weather for Wednesday 10th June 2026

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 14°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 83% chance of some rain and a moderate breeze of 24 kph from the west.

14
°C maximum temperature
10
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
5
UV index (Moderate)
83
% chance of some rain
<10
mm of rainfall expected
14
°C wind chill
24
kph wind from W

Porthmadog weather for Thursday 11th June 2026

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 80% chance of some rain and a gentle breeze of 19 kph from the south-west.