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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the StoryShift weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Cornwall’s weather is famously mild and changeable, with the best chance of warmth and sunshine from June to September, though the coast stays cooler than inland areas. The live forecast above shows current conditions, but always expect a mix of sun and showers, especially outside summer.
What is the best time to visit Cornwall for weather?
The most reliable weather in Cornwall runs from mid-May to late September, when sea temperatures peak and daylight stretches to late evening. July and August are the warmest months, with average highs around 19–21°C, but they also bring school holidays and peak crowds. For a quieter trip with still-pleasant conditions, consider late June or early September.
What should I pack for Cornwall?
Pack layers and a waterproof jacket year-round. Even a sunny morning can turn into a coastal drizzle. In summer, bring sun protection and a light fleece for breezy evenings; in winter, a warm coat and sturdy shoes are essential for blustery walks. A windproof layer is your best friend on the north coast, especially around Newquay.
Is Cornwall prone to extreme weather?
Cornwall can experience Atlantic storms and high winds, particularly from October to February, and the Met Office may issue a cornwall weather warning today for gales or heavy rain. The coast sees less frost and snow than inland areas, but flooding is possible in low-lying spots. Always check the cornwall weather bbc update before heading out on coastal paths.
How accurate is the weather in cornwall 10 days forecast?
Like much of the UK, the 10-day forecast for Cornwall is reliable for trends but less so for daily specifics beyond day 5. Check the live forecast above for the most up-to-date detail.
Is the snowdodge still needed in Cornwall?
Yes. A “snowdodge” (a waterproof outer shell) is useful in Cornwall all year for sudden showers. It is lighter than a full waterproof coat and packs easily for day trips along the coast.
Where can I find a cornwall weather map?
The Met Office and BBC Weather websites both offer interactive maps for Cornwall, showing rainfall, wind, and temperature layers at a glance.
For more on UK destinations, see our UK weather hub or check the 10 day weather forecast UK. If you are comparing coastal spots, the Isle Of Wight weather often sees similar conditions to Cornwall.