Barmouth weather
Live weather for Barmouth on the Gwynedd coast — temperature, wind, rain chance, sunrise and sunset, plus tide times for the estuary.
Barmouth is 16°C and clear, light winds at 9.0 mph E. Staying dry. High 18°, low 14°.
Next hours
How reliable is this forecast?
The forecast comes from the Met Office
The Barmouth forecast comes from the Met Office, the UK's national weather service, and we refresh it every three hours. Weather is a forecast rather than a certainty, so today and tomorrow are the most reliable and the outlook can shift as each day gets closer.
Where the data comes from
Weather data is supplied by the Met Office. For official weather warnings, check the Met Office directly.
About Barmouth weather
Barmouth sits where the Mawddach estuary meets Cardigan Bay, backed by the Cadair Idris range. Sea breezes keep summer afternoons fresher than inland, and westerly weather systems tend to arrive here first before pushing further into North Wales.
Barmouth weather — FAQ
How often is the Barmouth forecast updated?
The Barmouth forecast on this page refreshes several times a day from the Met Office. The "last updated" time at the bottom of the page shows exactly when it was last pulled.
Are the times shown in GMT or BST?
All times on the page — including sunrise, sunset and the hourly forecast — are shown in UK local time (GMT in winter, BST in summer).
What does the rain-chance percentage mean?
It's the probability of at least a small amount of rain falling during that hour. A reading of 30% means roughly a one-in-three chance of some rain, not that it'll rain 30% of the time.
Where does the weather data come from?
Directly from the UK Met Office site-specific forecast for Barmouth. We don't blend or interpret it — you're seeing the same underlying figures the Met Office publishes.
How reliable is this forecast?
The Barmouth forecast comes from the Met Office, the UK's national weather service, and we refresh it every three hours. Weather is a forecast rather than a certainty, so today and tomorrow are the most reliable and the outlook can shift as each day gets closer.
Where does the weather data come from?
Weather data is supplied by the Met Office. For official weather warnings, check the Met Office directly.