Weather in Tallinn in September
September in Tallinn is mild enough that walking is the default. This is a city-break month more than a sea-holiday month.
In Estonia, this is how Tallinn actually wears September, not how a country centroid would. Compared with July and February, September sits in the middle of Tallinn's year.
- Average temp
- 12°C
8–16°C
- Rainfall
- 57 mm
Showers likely
- Sunshine
- 5.4 h
hours per day
What to expect
Daytime
Mild afternoons in Tallinn are the prize in September. You can eat outside on the good days. You still want something for the breeze.
This is walking weather. Shade is useful, not essential the way it is in the hot months. A long outdoor day is a reasonable plan.
Rain
Mixed skies in Tallinn in September. Dry days and wet days share the month. Outdoor plans need a backup, not a cancellation policy.
Pack a shell you will actually carry. The monthly table is the place for totals. This is the feel: usable, interrupted.
Evening
Evenings are cooler. A layer helps after sunset.
What to pack
Rain jacket
A layer for cooler evenings
Where to stay in Tallinn
Dates are a starting point for September.
Travel guides for Tallinn
What to read before you book.
Average weather in Tallinn
TemperatureRainfall
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FAQs about Tallinn
Climate averages for Tallinn, 1991–2020.
The best time to visit Tallinn is between May and October, the most comfortable stretch of the year on these averages.
July is the hottest month, with an average around 18°C.
October is the wettest month, with about 83 mm of rain.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
