September · typical climate, not a forecast
Åland Islands in September
Finland
Solid escape
16°C day · 10°C night · 35% rain · 13h daylight · almost empty · €875 estimated
Live · Åland Islands
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Live · Tallinn (you)
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Cool Score breakdown
Scored for 5 nights from Tallinn in September.
- Temperature fit99
15.5°C typical high vs your 12–20°C window
w 26 - Heat escape7
0.8°C cooler than Tallinn
w 14 - Rain probability83
35% chance of rain on an average day
w 11 - Daylight hours61
12.5h of daylight mid-month
w 8 - Outdoor conditions83
Comfortable for a full day outside at 15.5°C
w 10 - Crowding79
Almost empty for this month
w 8 - Flight + stay cost98
≈€875 estimated for 5 nights vs €1000 budget
w 12 - Nature access90
9/10 — wild ground within reach
w 6 - City atmosphere46
3/10 urban texture · 7/10 food scene
w 4
Why Åland Islands in September
The Baltic breeze does the cooling; the bike routes do the rest.
- Island-hopping by bike
- Shipwreck museums
- Granite skerry swims
What September in Åland Islands is actually like
In September, Åland Islands sits around 16°C by day and drops to about 10°C after dark, so a light layer earns its place in the bag even in high summer. That is roughly 1°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 13 hours of daylight to spend outside. Crowds are almost empty this month, and a 5-night trip from Tallinn works out at around €875 including flights, a mid-range stay and everyday spending.
The Baltic breeze does the cooling; the bike routes do the rest. Days here tend to fill up with island-hopping by bike, shipwreck museums, granite skerry swims — which is why Åland Islands scores 75 out of 100 for september: solid escape.
Other months
Compare the typical climate month by month.