Weather in Tallinn, Harjumaa, Estonia in September
In an average September, Tallinn sees a daily high around 15°C and a low around 10°C, based on 1981–2026 of local climate records.
| Average high | 15°C |
|---|---|
| Typical high range | 11°C to 19°C |
| Average low | 10°C |
| Typical low range | 7°C to 13°C |
| Average daily precipitation | 3 mm |
September records
The most extreme September on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
26°C
2024-09-04
Lowest
6°C
1986-09-24
Low
Highest
17°C
2024-09-14
Lowest
1°C
1986-09-28
Feels-like
Highest
26°C
2024-09-04
Lowest
-7°C
1986-09-28
Humidity
Highest
15.0 g/m³
2025-09-07
Lowest
4.3 g/m³
1986-09-26
Wind
Highest
66 km/h
2018-09-26
Lowest
5 km/h
2005-09-02
Precip
Wettest
148 mm
1987
Driest
19 mm
2000
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