Tallinn weather in September
Tallinn in September averages 12°C (54°F), 57 mm of rain and 5.4 hours of sun a day.
Of the twelve months in Tallinn, September is the fourth warmest, the sixth driest and the sixth sunniest.
- Average temp
- 12°C (54°F)
8–16°C · 47–61°F
- Rainfall
- 57 mm
Showers likely
- Sunshine
- 5.4 h
hours per day
What is Tallinn like in September?
Daytime
Days are cool.
Rain
Some rain is likely; pack for showers.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Tallinn in September?
A light rain jacket
About 57 mm falls this month — showers rather than washouts.
A warm mid-layer
Nights drop to around 8°C (47°F).
September compared with August and October
September in Tallinn is 4.4°C cooler than August and 23 mm drier than it, which averages 17°C (62°F).
September in Tallinn is 5.5°C warmer than October and 26 mm drier than it, which averages 7°C (44°F).
Daylight in Tallinn in September
On 15 September the sun is up for 12 hours 50 minutes in Tallinn, rising about 06:50 and setting about 19:40 local time.
September ends 2 hours 33 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 5 hours 47 minutes short of June, the longest-lit month here.
Where to stay in Tallinn
Dates are a starting point for September.
Travel guides for Tallinn
What to read before you book.
Tallinn weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | -3°C / 26°F | 56 mm |
| February | -4°C / 25°F | 40 mm |
| March | -1°C / 31°F | 38 mm |
| April | 5°C / 41°F | 34 mm |
| May | 10°C / 50°F | 38 mm |
| June | 15°C / 58°F | 66 mm |
| July | 18°C / 64°F | 82 mm |
| August | 17°C / 62°F | 80 mm |
| September | 12°C / 54°F | 57 mm |
| October | 7°C / 44°F | 83 mm |
| November | 2°C / 35°F | 64 mm |
| December | -1°C / 30°F | 57 mm |
Check another month
This is the month you are reading. Change either side to look at another.
FAQs about Tallinn in September
September climate averages for Tallinn, 1991–2020.
Tallinn averages 12°C (54°F) in September, ranging from about 8°C (47°F) at night to 16°C (61°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 57 mm falls across September, enough to need a light jacket but not enough to reshape a trip.
Yes. September averages 12°C (54°F) against 7°C (44°F) in October — 5.5°C warmer.
September is 4.4°C cooler than August, and 23 mm drier.
Yes. September falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
About 5.4 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 50 minutes of daylight in mid-September, against 18 hours 37 minutes in June and 6 hours 6 minutes in December.
On 15 September, sunrise is about 06:50 and sunset about 19:40 local time. Both shift across the month — the month ends 2 hours 33 minutes shorter than it starts.
