Visiting Tallinn in September 2026
“Mild and bright — an underrated time to visit.”
Roughly 12 rainy days across the month, on average.
September cools the Baltic quickly — highs settle at 16.1C (61F), lows drop to 10C (50F), sunshine falls to 8.5 hours, and precipitation eases to 65mm across 12.3 days. Cruise ship traffic thins by the third week and Old Town lunch queues shorten. Kadriorg park's chestnuts turn copper by mid-month and morning fog rolls off the Gulf of Finland into the Rotermann Quarter through the second half.
On the ground the Tallinn Marathon dominates September 12 weekend, with the full marathon looping through Old Town, Kadriorg, and Pirita coastline drawing 20,000 runners. Estonian chanterelle season continues at Balti Jaama Turg. The Kalamaja hipster district's Telliskivi Creative City hosts the Tallinn Fashion Week the third weekend. Ferry to Helsinki drops to standard schedule and Baltic sea kayaking guides run their final trips of the season around Aegna and Naissaar islands by September 20.
Ten-year records show September warming 1.2C since 2015 with the autumn colour peak in Kadriorg shifting to September 25 from mid-month. 2026 forecasts show an average September with a warmer first half — Copernicus projects highs above 18C possible through September 10 which extends the outdoor terrace season. Rainy days should hit long-term averages.
2026 travellers should book Marathon weekend (September 12-13) hotels by mid-June — rates jump to 195 euros. Tallinn Fashion Week (September 19-21) fills Kalamaja boutique hotels. Book Rataskaevu 16 and NOA Chef's Hall two weeks ahead through September. 2026 ferry to Helsinki costs 38 euros return. Song Festival Grounds guided tours resume standard Tuesday-Saturday schedule.
Estonia is not Russian and locals will correct you sharply — the country was Soviet-occupied 1944-1991 and only 25% of Tallinn residents are ethnic Russian, concentrated in Lasnamae. Skype was invented here. The Telliskivi Creative City in a former Soviet industrial complex has better food than the Old Town — F-hoone or Peatus for Estonian-Nordic fusion. The correct greeting is 'tere' not 'privet.' Buy black bread (must leib) at Rimi and eat it with sprats and sour cream.
What to pack for Tallinn in September
Layer for autumn arrival and morning fog off the Baltic.
- Waterproof jacket with hood essential
- Merino wool mid-layer sweater
- Waterproof walking shoes with grip
- Compact umbrella and warm hat for evenings
- Light gloves for morning marathon spectating
What to pack for Tallinn in September
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Where to stay in Tallinn
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Compare hotels on Booking.com→Things worth doing
Tallinn Marathon spectating along Pirita path, Tallinn Fashion Week at Telliskivi, Kadriorg autumn walk, chanterelle foraging tour, final kayak trip to Aegna, ferry to Helsinki.
September vs. the rest of the year
How this month compares in Tallinn. Tap any month to read more.
highlighted months are among the best time to visit.
Best time to visit Tallinn
September is one of the best months to visit Tallinn — alongside May, June, July. Ten-year climate data confirms it: comfortable temperatures, manageable rainfall, and a healthy dose of sunshine.
See the full best-time-to-visit guide for TallinnOther places with a similar climate right now
Tallinn in September — FAQ
Q01Is September a good time to visit Tallinn?
Is September a good time to visit Tallinn?
Yes — it is a good time to visit, with pleasant, comfortable weather. In September, Tallinn averages a high of 16°C (61°F) and a low of 10°C (50°F), with 65mm of rainfall across roughly 12 rainy days. Mid-June through July the White Nights keep Toompea hill lit past 11pm and the Old Town Days medieval fair fills Raekoja Plats with 15th-century reenactments.
Q02What is the average temperature in Tallinn in September?
What is the average temperature in Tallinn in September?
The average high temperature in Tallinn during September is 16°C (61°F), with an average low of 10°C (50°F). These figures are averaged from ten years of daily records (2015–2024, Open-Meteo Archive).
Q03How many rainy days does Tallinn have in September?
How many rainy days does Tallinn have in September?
Tallinn averages approximately 12 rainy days in September, with a total monthly rainfall of about 65mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for Tallinn in September?
What should I pack for Tallinn in September?
For Tallinn in September, pack layered clothing for changing temperatures, a compact umbrella or waterproof jacket, comfortable walking shoes. These recommendations are based on the ten-year weather averages for this specific month. Merino wool base layer even in July — Baltic Sea breeze off Pirita drops evening temperatures 12 degrees in an hour.
Q05How crowded is Tallinn in September?
How crowded is Tallinn in September?
Tourist crowds in Tallinn during September are typically moderate — shoulder season, a sweet spot between crowds and weather. Consider this when planning accommodation — prices track crowd levels closely. Estonia is not Russian and locals will correct you sharply — the country was Soviet-occupied 1944-1991 and only 25% of Tallinn residents are ethnic Russian, concentrated in Lasnamae. Skype was invented here. The Telliskivi Creative City in a former Soviet industrial complex has better food than the Old Town — F-hoone or Peatus for Estonian-Nordic fusion. The correct greeting is 'tere' not 'privet.' Buy black bread (must leib) at Rimi and eat it with sprats and sour cream.