September · typical climate, not a forecast
Bornholm in September
Denmark
Solid escape
16°C day · 11°C night · 35% rain · 12h daylight · quiet · €1,030 estimated
Live · Bornholm
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Reading…
Live · Tallinn (you)
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Cool Score breakdown
Scored for 5 nights from Tallinn in September.
- Temperature fit99
16.3°C typical high vs your 12–20°C window
w 26 - Heat escape0
0°C warmer than Tallinn
w 14 - Rain probability83
35% chance of rain on an average day
w 11 - Daylight hours60
12.4h of daylight mid-month
w 8 - Outdoor conditions85
Comfortable for a full day outside at 16.3°C
w 10 - Crowding66
Quiet for this month
w 8 - Flight + stay cost82
≈€1030 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 Bornholm in September
Sea-cooled, bikeable, and stuffed with smoked herring.
- Smokehouse lunches
- Cliff-top cycling
- Round churches
What September in Bornholm is actually like
In September, Bornholm sits around 16°C by day and drops to about 11°C after dark, so a light layer earns its place in the bag even in high summer. That is roughly 0°C cooler 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 35% of days, usually passing rather than persistent, and about 12 hours of daylight to spend outside. Crowds are quiet this month, and a 5-night trip from Tallinn works out at around €1,030 including flights, a mid-range stay and everyday spending.
Sea-cooled, bikeable, and stuffed with smoked herring. Days here tend to fill up with smokehouse lunches, cliff-top cycling, round churches — which is why Bornholm scores 71 out of 100 for september: solid escape.
Other months
Compare the typical climate month by month.