September · typical climate, not a forecast
Black Forest in September
Germany
Workable
18°C day · 9°C night · 44% rain · 12h daylight · moderate crowds · €1,065 estimated
Live · Black Forest
–°C
Reading…
Live · Tallinn (you)
–°C
Reading…
Cool Score breakdown
Scored for 5 nights from Tallinn in September.
- Temperature fit95
17.8°C typical high vs your 12–20°C window
w 26 - Heat escape0
1.5°C warmer than Tallinn
w 14 - Rain probability62
44% chance of rain on an average day
w 11 - Daylight hours59
12.3h of daylight mid-month
w 8 - Outdoor conditions79
Comfortable for a full day outside at 17.8°C
w 10 - Crowding59
Moderate crowds for this month
w 8 - Flight + stay cost79
≈€1065 estimated for 5 nights vs €1000 budget
w 12 - Nature access80
8/10 — wild ground within reach
w 6 - City atmosphere66
5/10 urban texture · 9/10 food scene
w 4
Why Black Forest in September
Forest canopy keeps the trails cool when the Rhine valley bakes.
- Deep-forest walks
- Spa towns
- Absurdly good bakeries
What September in Black Forest is actually like
In September, Black Forest sits around 18°C by day and drops to about 9°C after dark, so a light layer earns its place in the bag even in high summer. That is roughly 1°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 44% of days, usually passing rather than persistent, and about 12 hours of daylight to spend outside. Crowds are moderate crowds this month, and a 5-night trip from Tallinn works out at around €1,065 including flights, a mid-range stay and everyday spending.
Forest canopy keeps the trails cool when the Rhine valley bakes. Days here tend to fill up with deep-forest walks, spa towns, absurdly good bakeries — which is why Black Forest scores 66 out of 100 for september: workable.
Other months
Compare the typical climate month by month.