Tallinn weather in September
“Mild and bright — an underrated time to visit.”
Roughly 12 rainy days across the month, on average.
In september, Tallinn settles into its quieter, cooler pace. The city keeps a different pulse than in summer or midwinter, and travellers who arrive with the right expectations are rewarded.
Days average around 16°C (61°F), cooling to 10°C after sunset. Rainfall is moderate — around 12 rainy days spread through the month. Long days of sunshine reward early starts.
These figures are climatological averages, drawn from a decade of daily records via the Open-Meteo Archive — not a forecast. But they are honest, and they are the sort of thing a good travel guide ought to tell you before you book the flight.
What to pack for Tallinn in September
- •A light layer for cool mornings and evenings
- •A compact travel umbrella — one you'll actually carry
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for Tallinn in September
- →Breathable travel pantsAmazon · shop this
- →Compact travel umbrellaAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
- →Polarized sunglassesAmazon · shop this
- →Universal travel adapterAmazon · shop this
- →Compression packing cubesAmazon · shop this
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Where to stay in Tallinn
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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.
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.
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.