Porthmadog weather live forecast

Today's maximum temperature in Porthmadog is expected to be 46°F. Select a day from the live weather forecast for Porthmadog, Wales, UK for more weather parameters.

Saturday
14th Mar
46

37

5

2
Sunday
15th Mar
48

41

1

2
Monday
16th Mar
48

41

1

1
Tuesday
17th Mar
52

46

1

2
Wednesday
18th Mar
61

45

10

3

5-day weather forecast updated at 04:03 on Saturday 14th March 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 Saturday 14th March 2026

Expect broken clouds in Porthmadog, Wales with a maximum temperature of 46°F, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the south-west.

46
°F maximum temperature
37
°F minimum temperature
broken clouds
5
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
41
°F wind chill
11
mph wind from SW

Porthmadog weather for Sunday 15th March 2026

Expect cloudy with some rain in Porthmadog, Wales with a maximum temperature of 48°F, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 94% chance of some rain and a fresh breeze of 22 mph from the west.

48
°F maximum temperature
41
°F minimum temperature
cloudy with some rain
1
hour of sunshine
2
UV index (Low)
94
% chance of some rain
<10
mm of rainfall expected
41
°F wind chill
22
mph wind from W

Porthmadog weather for Monday 16th March 2026

Expect mostly cloudy with rain in Porthmadog, Wales with a maximum temperature of 48°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 98% chance of some rain and a fresh breeze of 18 mph from the south-west.

48
°F maximum temperature
41
°F minimum temperature
mostly cloudy with rain
1
hour of sunshine
1
UV index (Low)
98
% chance of some rain
<10
mm of rainfall expected
41
°F wind chill
18
mph wind from SW

Porthmadog weather for Tuesday 17th March 2026

Expect mostly cloudy with light rain in Porthmadog, Wales with a maximum temperature of 52°F, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 51% chance of some rain and a fresh breeze of 23 mph from the south.

52
°F maximum temperature
46
°F minimum temperature
mostly cloudy with light rain
1
hour of sunshine
2
UV index (Low)
51
% chance of some rain
<2
mm of rainfall expected
52
°F wind chill
23
mph wind from S

Porthmadog weather for Wednesday 18th March 2026

Expect sunshine and showers in Porthmadog, Wales with a maximum temperature of 61°F, maximum UV of 3 (Moderate) and 10 hours of bright sunshine. There are 0-2 mm of rainfall expected with 5% chance of some rain and a gentle breeze of 11 mph from the south.