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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Evening Ledger weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above before heading out in Porthmadog today, as conditions along the Glaslyn estuary can shift quickly between coastal showers and brighter spells.
What should I expect from the weather in Porthmadog today?
The live forecast above gives the most accurate picture for the next few hours, typical for this Snowdonia coastal town where Atlantic fronts often bring brisk winds and frequent rain.
- Expect a mix of cloud and sunny intervals, with the chance of a passing shower, especially near the harbour.
- Temperatures will feel cooler in any breeze coming off Cardigan Bay, so a light waterproof is sensible.
- For a detailed outlook, check the 10 day weather forecast UK to plan the week ahead.
Looking for the Met Office or BBC forecast for Porthmadog?
For a specific weather porthmadog met office breakdown, the Met Office updates its local pages several times daily. The bbc weather porthmadog feed also provides reliable short-range data, including the weather in porthmadog tomorrow.
- To see the full weather porthmadog 14 day forecast or a weather porthmadog 7 days view, use the live panel above or visit our UK weather hub.
- Longer-term porthmadog weather 21 days estimates come with lower confidence, so stick to the 7-day outlook for planning walks on the Cob or trips to the Welsh Highland Railway.
Will it rain in Porthmadog tomorrow?
For the bbc weather porthmadog 7 days view, the live forecast above includes a day-by-day breakdown. Tomorrow looks similar to today—cloudy with occasional bright intervals and a slight chance of drizzle. Check back this evening for the updated overnight outlook.
Is Porthmadog usually wetter than other parts of Gwynedd?
Yes, Porthmadog sits in the rain shadow of Snowdon, but its coastal position means it still gets around 150–180 days of rain per year, slightly higher than inland Gwynedd towns. Always pack a jacket.
When is the best time of day for a walk near the harbour?
The late morning and early afternoon often bring a small break in cloud cover, especially if the tide is high. Check the live forecast above for the calmest wind window.
Does the weather affect the Ffestiniog Railway services?
Strong winds or heavy rain can cause delays or cancellations on the heritage railway. Always check the live forecast and the railway’s own status page before travelling.