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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the Edinburgh Wire weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
For the latest conditions in Caernarfon, check the live forecast above for today’s outlook, as the town’s position on the Menai Strait often brings changeable skies and a brisk breeze off the Irish Sea.
What is the weather like in Caernarfon this week?
Caernarfon, on the north-west coast of Gwynedd, typically sees a mix of cloud and brighter spells this week, with the live forecast above showing the immediate trend. The proximity to Snowdonia means rain can drift in from the west, while the Strait moderates temperatures, keeping frosts rare near the waterfront. For a longer view, the 10 Day Weather Forecast UK page gives a broader picture of how Atlantic systems may affect the region.
Will it rain in Caernarfon over the next fortnight?
Rain is a frequent visitor to Caernarfon, especially from autumn through spring, thanks to its coastal and mountainous setting. The live forecast above indicates any wet spells in the coming days, but for a more detailed outlook, the 14 day weather forecast Caernarfon is best checked via the Met Office, as longer-range predictions can shift with Atlantic fronts. Those planning outdoor trips to the castle or harbour should keep an eye on the bbc weather caernarfon 7 days update for reliable timing.
Is Caernarfon usually windy?
Yes, Caernarfon can be breezy, especially in exposed spots near the Menai Strait and the castle. South-westerly winds are common, but shelter is found in the town centre and lower streets.
Does Caernarfon get snow?
Snow is rare in Caernarfon town itself due to the coastal influence, but the surrounding Snowdonia hills often see a dusting in winter. For the town, sleet or wet flurries occur a few days each year.
What is the best time to visit Caernarfon for weather?
Late spring (May to June) and early autumn (September) offer the most settled conditions, with lighter winds and longer dry spells. Summer can be pleasant but often brings cloud and occasional rain from the Irish Sea.
For other UK locations, see our UK weather hub or check the forecast for Liverpool Weather and Glasgow Weather. For a longer-term view, the weather in caernarfon 10 days and bbc weather caernarfon 14 days pages provide additional detail.