December · typical climate, not a forecast
Cornwall in December
United Kingdom
Not your escape
10°C day · 5°C night · 54% rain · 8h daylight · quiet · €1,140 estimated
Live · Cornwall
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Live · Tallinn (you)
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Cool Score breakdown
Scored for 5 nights from Tallinn in December.
- Temperature fit58
9.7°C typical high vs your 12–20°C window
w 26 - Heat escape0
9.2°C warmer than Tallinn
w 14 - Rain probability38
54% chance of rain on an average day
w 11 - Daylight hours9
7.8h of daylight mid-month
w 8 - Outdoor conditions40
Comfortable for a full day outside at 9.7°C
w 10 - Crowding62
Quiet for this month
w 8 - Flight + stay cost71
≈€1140 estimated for 5 nights vs €1000 budget
w 12 - Nature access80
8/10 — wild ground within reach
w 6 - City atmosphere62
5/10 urban texture · 8/10 food scene
w 4
Why Cornwall in December
Surfable Atlantic swell and 20°C on the hottest week of the year.
- South West Coast Path
- Cold Atlantic surf
- Harbour seafood
What December in Cornwall is actually like
In December, Cornwall sits around 10°C by day and drops to about 5°C after dark, so a light layer earns its place in the bag even in high summer. That is roughly 9°C warmer than Tallinn at the same time of year — the difference between planning your day around the shade and simply walking out of the door.
Expect rain on roughly 54% of days, usually passing rather than persistent, and about 8 hours of daylight to spend outside. Crowds are quiet this month, and a 5-night trip from Tallinn works out at around €1,140 including flights, a mid-range stay and everyday spending.
Surfable Atlantic swell and 20°C on the hottest week of the year. Days here tend to fill up with south west coast path, cold atlantic surf, harbour seafood — which is why Cornwall scores 45 out of 100 for december: not your escape.
Other months
Compare the typical climate month by month.