September · typical climate, not a forecast
Brittany in September
France
19°CMild
65/100
Workable
19°C day · 14°C night · 42% rain · 12h daylight · moderate crowds · €1,150 estimated
Live · Brittany
–°C
Reading…
Live · Tallinn (you)
–°C
Reading…
Cool Score breakdown
Scored for 5 nights from Tallinn in September.
- Temperature fit92
18.8°C typical high vs your 12–20°C window
w 26 - Heat escape0
2.5°C warmer than Tallinn
w 14 - Rain probability66
42% chance of rain on an average day
w 11 - Daylight hours59
12.3h of daylight mid-month
w 8 - Outdoor conditions77
Comfortable for a full day outside at 18.8°C
w 10 - Crowding59
Moderate crowds for this month
w 8 - Flight + stay cost70
≈€1150 estimated for 5 nights vs €1000 budget
w 12 - Nature access80
8/10 — wild ground within reach
w 6 - City atmosphere76
6/10 urban texture · 10/10 food scene
w 4
Why Brittany in September
The sea keeps it in the low twenties while the south hits 38°C.
- Coastal GR34 path
- Oyster shacks
- Pink granite coast
Other months
Compare the typical climate month by month.