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Climate · Tallinn

Tallinn in September

Mild and damp, as the days shorten.

Typical weather, averaged over 30 years

September in Tallinn is mild: highs near 64°F, lows near 50°F. Rain falls on about three days a week, less often as the month goes on, and the days shorten by 1 hour 55 minutes from the first week to the last.September in Tallinn is mild: highs near 18°C, lows near 10°C. Rain falls on about three days a week, less often as the month goes on, and the days shorten by 1 hour 55 minutes from the first week to the last.

High
64°F18°Caverage
Low
50°F10°Caverage
Wet days
3a week · 42% of days
Daylight
12h 41mon average

Is September a good time to visit Tallinn?

A good month, just outside Tallinn's best months, which run from June to August.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 64°F in September, against 32°F to 74°F through the year.Highs near 18°C in September, against 0°C to 23°C through the year.

Chance of a wet day

42% of days in September, against 31% to 47% through the year.

Cloud cover

53% cover in September, against 47% to 73% through the year.

Daylight

12h 41m in September, against 6h 10m to 18h 30m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August73°23°low 57°low 14°3 wet days a weekRain on about three days a week.
  2. September64°18°low 50°low 10°3 wet days a weekRain on about three days a week.
  3. October53°12°low 42°low 6°3 wet days a weekRain on about three days a week.

Where Tallinn sits, in September

Europe/Tallinn
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
6:47 AMsets 7:46 PM
Above the sea
0 mlow-lying
Latitude
59.4°Nnorthern hemisphere
Nearest of ours
our one place here

The land around Tallinn, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Tallinn is our one place in Estonia so far. Clock times are local, for the 15th.

See September on the planning mapThe whole year in Tallinn

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Tallinn. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.