Weather Porthmadog

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

Partly Cloudy

15°C 59°F 12°C 54°F South Westerly
Wind Speed 16 km/h 10 mph
Friday

Heavy Rain

15°C 59°F 14°C 57°F Southerly
Wind Speed 34 km/h 21 mph
Saturday

Light Cloud

17°C 63°F 14°C 57°F Southerly
Wind Speed 26 km/h 16 mph
Sunday

Light Rain

16°C 61°F 13°C 55°F South South Easterly
Wind Speed 16 km/h 10 mph
Monday

Sunny Intervals

17°C 63°F 10°C 50°F North North Westerly
Wind Speed 8 km/h 5 mph

IN ASSOCIATION WITH

Forecast

Sunrise 07:00 Sunset 19:18

Last updated 23:12

Weather forecast details for Thursday 21 September. Each column contains hourly forecast details for weather conditions, temperature, wind speed, wind direction, humidity, visibility and pressure.
Time 0100 hours0200 hours0300 hours0400 hours0500 hours                   
Weather Conditions Partly Cloudy Partly Cloudy Light Cloud Light Cloud Clear Sky                    
Temperature (°C/°F) 13°C 55°F 13°C 55°F 13°C 55°F 12°C 54°F 12°C 54°F                    
Wind Speed (mph/km/h) Wind Speed 16 km/h 10 mph South Westerly Wind Speed 18 km/h 11 mph South South Westerly Wind Speed 18 km/h 11 mph South South Westerly Wind Speed 19 km/h 12 mph Southerly Wind Speed 21 km/h 13 mph Southerly                    
Wind Direction SW SSW SSW S S                    
Humidity 73% 73% 79% 84% 84%                    
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) EEVGVGVG                   
Pressure (Millibars) 1018 1018 1018 1017 1017                    

Wales

Forecast Summary

  • Tonight

    After a dry evening with late sunshine and lighter winds, a dry, clear and rather cold night will follow. A few mist and fog patches will form in prone spots.

Environmental Summary

UV: 3

UK Range: 1-8

Pollution: Low

UK Range: Low to Very High

Share this page

RSS Feeds
Print

Forecast Video

BBC Wales Today

Please turn on JavaScript. Media requires JavaScript to play.

Last updated 19:09 BST, Thursday 21 SepForecast updated Monday to Friday only

UK

Please turn on JavaScript. Media requires JavaScript to play.

Last updated 22:28 BST, Thursday 21 Sep

Observations

Observed at 22:00, Thursday 21 September

Light Cloud

9°C 48°F

Wind Speed 8 km/h 5 mph South Westerly

Humidity: 93%

Visibility: Excellent

Pressure: 1018mb, 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

Information given for most appropriate forecast location. See FAQs for details