Weather in Tallinn in September
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Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for September in Tallinn.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youTallinn in September is cool — daytime temperatures average 15.7°C, dropping to 9.5°C at night. The month is moderately rainy (11 rainy days), with roughly 8.5 hours of sunshine a day. It is one of the best months of the year to visit. For the complete picture, see the best time to visit Tallinn — every month compared. Once you know when to go, find your Tallinn packing list at 247PackingList.
Get ready for Tallinn in September
Search flights to Tallinn
Compare 100+ airlines for September — one search, best price.
Search Flights →Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →What to pack for Tallinn in September
- Warm layers
- Light jacket or fleece
- Comfortable walking shoes
- Light waterproof layer
Compare all months in Tallinn
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 0.9°C | 70.3mm | 8/10 |
| February | 0.4°C | 60.3mm | 8/10 |
| March | 3.8°C | 39.8mm | 8/10 |
| April | 8.1°C | 39.5mm | 10/10 |
| May | 13.8°C | 63.2mm | 10/10 |
| June | 21.6°C | 48.0mm | 10/10 |
| July | 21.6°C | 96.4mm | 10/10 |
| August | 21.1°C | 99.4mm | 10/10 |
| September | 15.7°C | 53.9mm | 10/10 |
| October | 10.4°C | 77.5mm | 10/10 |
| November | 4.6°C | 78.3mm | 8/10 |
| December | -0.8°C | 58.4mm | 6/10 |
Full month-by-month guide: best time to visit Tallinn →
For facts about Estonia — currency, language and dialling code — see our Estonia country guide at 247CountryInfo. Travellers also find it useful to keep a Tallinn travel guide to hand. Check clothing sizes in Estonia before you shop.
Frequently Asked Questions
Is September a good time to visit Tallinn?
September rates 10/10 for visiting Tallinn — excellent time to visit. Expect average highs of 15.7°C, 53.9mm of rain across the month and about 8.5 hours of daily sunshine.
What is the temperature in Tallinn in September?
In September, Tallinn has average highs of 15.7°C (60.3°F) and average lows of 9.5°C (49.1°F).
Does it rain in Tallinn in September?
Not much. September averages just 53.9mm of rain in Tallinn — the odd shower is possible but most days stay dry.
What should I wear in Tallinn in September?
For Tallinn in September (15.7°C highs / 9.5°C lows), pack warm layers plus light jacket or fleece, comfortable walking shoes, light waterproof layer.
More essentials for Tallinn in September
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.