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Live forecasts update automatically; written guidance last reviewed 15 June 2026 by the National Report weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above for Harlech before heading out — the coastal setting means conditions can shift quickly, especially when the Irish Sea sends in Atlantic weather systems through the day.
What does the forecast for Harlech look like right now?
The live forecast above gives you the most up-to-date picture for Harlech, covering temperature, wind and any rain expected. Because the town sits on the west coast of Snowdonia, you often get milder winters than inland Wales, but the wind can pick up suddenly across the dunes and the castle headland. If you’re planning a walk on the beach or a climb up to the castle, the live data is your best bet for avoiding a soaking.
Can you trust the 14-day outlook for Harlech?
A 14-day forecast for any coastal spot in Wales comes with some uncertainty, but it still gives you a useful sense of the general pattern — perhaps a settled spell or a series of fronts moving in. For Harlech, the bbc weather harlech 14 days view helps you spot whether high pressure is likely to hold or whether Atlantic lows could bring blustery showers. Use it as a guide, not a guarantee, and always check the live forecast on the day.
Is Harlech weather usually wetter than the rest of Wales?
Harlech gets about 1,200mm of rain a year, which is higher than the UK average but slightly lower than the Snowdonia mountains just behind it. The coast often catches Atlantic fronts first, though the castle itself sits on a rocky spur that drains quickly.
When is the best time to visit Harlech for settled weather?
Late spring (May to June) and early autumn (September) tend to bring the most stable conditions, with lighter winds and fewer rain days. July and August are warmer but can be more changeable as Atlantic systems still push through.
Why does the wind feel stronger near Harlech Castle?
The castle stands on a 60-metre rocky headland with no shelter from the west or north-west. When the wind comes off the Irish Sea, it accelerates over the exposed bluff, making it feel considerably gustier than at street level in the town below.
Sources
For more UK forecasts, visit the UK weather hub or check the 10 day weather forecast UK for a broader view of conditions across the country.