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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the UK Bullet weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above before heading to the coast, as Criccieth’s position on Cardigan Bay means sea breezes and Atlantic fronts can bring rapid shifts in cloud, wind and rain.
What is the weather like in Criccieth?
Criccieth sits on the Llŷn Peninsula in Gwynedd, exposed to south-westerly winds off the Irish Sea. The met office weather criccieth pages usually show mild winters, cool summers and rainfall spread across the year — with the driest months typically April to June.
- Temperature — average highs reach about 19°C in July and August; winter highs hover around 8°C in January
- Rainfall — the town receives roughly 1,100–1,300mm of rain annually, with October to January the wettest stretch
- Wind — strongest from November to February, especially during deep Atlantic depressions; gusts can exceed 50mph on exposed seafronts
- Sunshine — summer averages around 5–6 hours of sun per day; winter drops to 1–2 hours
How reliable are longer-range forecasts for Criccieth?
For any forecast beyond three or four days, confidence falls as small shifts in the jet stream change the track of Atlantic low pressure. The bbc weather criccieth 7 days and bbc weather criccieth 14 days outlooks are useful for trends, but not for precise hour-by-hour planning.
- Check the 10 Day Weather Forecast UK for a general pattern, then return to the live forecast above before you travel
- Coastal fog can form overnight in spring and autumn, clearing by mid-morning — the bbc news travel pages sometimes flag local visibility issues
- If you are walking the Wales Coast Path or visiting Criccieth Castle, wind and rain can arrive suddenly; waterproof layers are sensible year-round
Is Criccieth usually warmer or cooler than inland Gwynedd?
It is slightly cooler in summer because of sea breezes off Cardigan Bay, and milder in winter thanks to maritime air. Frost is less common than inland at Llanrwst or Betws-y-Coed.
Does Criccieth get snow often?
Snow falls on a handful of days each winter, usually settling only briefly at sea level. Higher ground behind the town, like Moel y Gest, can hold snow longer but rarely causes disruption.
What is the best month for a dry visit?
May and June tend to have the lowest rainfall and most sunshine. September can also be settled, though Atlantic storms become more frequent from mid-October onwards.