September · typical climate, not a forecast
Cornwall in September
United Kingdom
17°CCool
63/100
Workable
17°C day · 12°C night · 44% rain · 12h daylight · moderate crowds · €1,260 estimated
Live · Cornwall
–°C
Reading…
Live · Tallinn (you)
–°C
Reading…
Cool Score breakdown
Scored for 5 nights from Tallinn in September.
- Temperature fit96
17.3°C typical high vs your 12–20°C window
w 26 - Heat escape0
1°C warmer than Tallinn
w 14 - Rain probability62
44% chance of rain on an average day
w 11 - Daylight hours60
12.4h of daylight mid-month
w 8 - Outdoor conditions81
Comfortable for a full day outside at 17.3°C
w 10 - Crowding46
Moderate crowds for this month
w 8 - Flight + stay cost57
≈€1260 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 September
Surfable Atlantic swell and 20°C on the hottest week of the year.
- South West Coast Path
- Cold Atlantic surf
- Harbour seafood
Other months
Compare the typical climate month by month.