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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the WordPatch 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 Gulf Stream keeping winters frost-free and summers cooler than inland areas, though rain is never far away. The live forecast above shows the immediate conditions for your trip.
What is the best time to visit Cornwall for good weather?
June and September offer the best balance of warmth and lower rainfall, with average highs around 18–20°C. July and August are the warmest months but also the busiest and priciest due to school holidays. For surfing, autumn and winter bring the biggest Atlantic swells, but expect more rain and wind.
What should I pack for a Cornwall trip?
A waterproof jacket and layers are essential year-round, as conditions can shift from sun to drizzle within an hour. In summer, pack sun cream and a light fleece for breezy coastal paths. In winter, a warm coat, sturdy boots and a windproof hat are wise, especially for exposed headlands like Land’s End.
Frequently Asked Questions
Does Cornwall get a lot of rain?
Yes, Cornwall receives around 1,000mm of rain annually, but it tends to come in short, showery bursts rather than persistent downpours. The north coast is slightly wetter than the south, and inland areas are drier than coastal spots.
Is Cornwall warmer than the rest of the UK?
In winter, yes – Cornwall is often 2–3°C milder than inland England due to the surrounding sea. In summer, it is usually cooler than the South East, but the coastal breeze makes it comfortable for walking and exploring.
When are the worst weather warnings in Cornwall?
Cornwall weather warning today alerts are most common from October to February for strong winds and coastal gales. The Met Office issues yellow warnings for rain and wind several times a year, so check the live forecast above before heading out.
Sources
For longer-range planning, check the 10 day weather forecast UK or compare with BBC Wales weather for similar coastal conditions. If you’re heading east, the Peak District weather tends to be cooler and drier.