Weather Porthmadog

Daily forecast
Day Weather Maximum Day Temperature Minimum Night Temperature Wind Direction and Speed

Light Cloud

16°C 61°F 8°C 46°F North Westerly
27km/h 17mph

Sunny Intervals

15°C 59°F 14°C 57°F South South Westerly
11km/h 7mph

Thick Cloud

17°C 63°F 11°C 52°F South South Westerly
39km/h 24mph

Light Rain Shower

13°C 55°F 10°C 50°F West North Westerly
26km/h 16mph

Heavy Rain

14°C 57°F 12°C 54°F South South Westerly
35km/h 22mph



Sunrise 07:17 Sunset 18:54

Last updated 12:04

Weather forecast details for Wednesday 1 October. Each column contains hourly forecast details for weather conditions, temperature, wind speed, wind direction, humidity, visibility and pressure.
Time 1600 hours1900 hours2200 hours0100 hours
0400 hours   
Weather Conditions Light Cloud Clear Sky Clear Sky Clear Sky Clear Sky    
Temperature (°C/°F) 15°C 59°F 12°C 54°F 10°C 50°F 9°C 48°F 9°C 48°F    
Wind Speed (mph/km/h) 10km/h 6mph North North Westerly 6km/h 4mph North North Westerly 6km/h 4mph North North Easterly 6km/h 4mph East North Easterly 10km/h 6mph East North Easterly    
Wind Direction NNW NNW NNE ENE ENE    
Humidity 75% 81% 83% 88% 82%    
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) VG VG VG VG VG    
Pressure (Millibars) 1026 1028 1030 1030 1030    


Forecast Summary

  • Today

    A rather cloudy day, but there will be a few bright or sunny spells, especially later in the west. There will be some patchy rain at times, although many areas will be dry for much of the time.

  • Tonight

    It will become dry in the evening. Northern and central parts will become mostly clear and cold, with fog patches. Southern areas will hold onto the cloudier and milder conditions.

Environmental Summary

UV: 2

UK Range: 1-7

Pollen: Moderate

UK Range: Low to Very High

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Forecast Video

BBC Wales Today

BBC Wales Today Forecast Last updated 06:16, Wednesday 1 Oct Forecast updated Monday to Friday only


UK Forecast Last updated 12:39, Wednesday 1 Oct


Observed at 13:00, Wednesday 1 October

Thick Cloud

15°C 59°F

24km/h 15mph South Westerly

Humidity: 93%

Visibility: Poor

Pressure: 1024mb, Rising

Observation station: Capel Curig

(Lat: 53.1 | Lon: -3.933)

BBC Weather in association with the Met Office

All times are BST (Europe/London, GMT+0100) unless otherwise stated

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