Tallinn, Estonia Climate & Monthly Averages
Tallinn has an oceanic climate. July is the hottest month, averaging 70° by day; January is the coldest at 31°.
Winter sets the pace in Tallinn
The Tallinn year is defined by how long its winter lasts: 4 months average sub-freezing nights, bottoming out in January at 23°F (-5°C). Summer is the short exception, with July reaching 70°F (21°C).
July
70° by day 57° at nightJanuary
31° by day 23° at nightThe cold-weather pattern in numbers
January sits at the other end of the year: 31°F (-1°C) by day, 23°F (-5°C) at night. July is the warm end of the year, averaging 70°F (21°C) by day and 57°F (14°C) overnight. Precipitation concentrates in August - 3.7 inches (94 mm) on 15 days - and thins out by March.
Days and nights are about 6°C apart on average - narrower than all but 8% of the 3496 cities in our dataset. June is the brightest month at 14.3 hours of sun a day, against an annual average of 7.6 - duller than all but 9% of the 3496 cities in our dataset. Snow falls on roughly 32 days a year, mostly November through April. Relative humidity averages 80% across the year, more humid than roughly 84% of the cities we track.
Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 90°F (32°C) and the lowest daily minimum -11°F (-24°C).
More climate facts for Tallinn
- Hottest month: July - highs near 70°F (21°C)
- Coldest month: January - highs near 31°F (-1°C)
- Decade extremes (2015-2024): 90°F (32°C) high · -11°F (-24°C) low
- Wettest month: August (15 rainy days) · Sunniest: June (14.3 h sun/day)
- Climate type: oceanic
- Annual swing: 20°C between the average warmest and coolest month · day to night: 6°C
- Snow: about 32 days a year
- Months with freezing average lows: 4
- Average humidity: 80%
From snow season to the warmest stretch in Tallinn
Spring (March through May)
Through spring, Tallinn is chilly: 48°F (9°C) by day, 35°F (1°C) after dark, and expect showers on roughly 28 days across the season, plus about 6 snowy days.
Summer (June through August)
Through summer, Tallinn settles into easy warmth: 69°F (21°C) by day, 56°F (13°C) after dark, and rain falls on around 40 of the 90 days. Daylight is generous - around 13.0 hours of sun a day.
Fall (September through November)
Fall in Tallinn is brisk and cold, with daytime highs averaging 50°F (10°C) and nights around 42°F (6°C); rain falls on around 40 of the 90 days, plus about 4 snowy days.
Winter (December through February)
Through winter, Tallinn is frigid: 32°F (0°C) by day, 25°F (-4°C) after dark, and rain falls on around 40 of the 90 days, plus about 22 snowy days. Sun is scarce, averaging 2.1 hours a day. Wind sharpens cold like this considerably; pair the forecast winds with the wind speed converter to judge exposed conditions.
The coldest and warmest values in the dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.
Planning around winter in Tallinn
The easier weather window
May to September is the sweet spot for Tallinn - these are the warmest and brightest weeks of the year. Expect 66°F (19°C) in the afternoon and around 12 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in May.
Cold-weather packing
Pack for Tallinn with a heavy insulated coat, hat and gloves for winter and proper waterproofs rather than an umbrella - wet days are the norm here. Even in July, lows of 57°F (14°C) make an extra layer worth the space.
Monthly highs, lows and seasonal change
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 31° | 23° | 14 | 2.2 in | 1.6 h/day | 6.8 h | 44% | 87% |
| February | 33° | 25° | 12 | 1.9 in | 3.4 h/day | 9.1 h | 42% | 86% |
| March | 38° | 28° | 10 | 1.4 in | 6.6 h/day | 11.6 h | 34% | 79% |
| April | 47° | 34° | 10 | 1.8 in | 10.1 h/day | 14.4 h | 33% | 74% |
| May | 59° | 43° | 8 | 1.8 in | 13.2 h/day | 17.0 h | 26% | 68% |
| June | 68° | 53° | 10 | 2.5 in | 14.3 h/day | 18.6 h | 35% | 70% |
| July | 70° | 57° | 15 | 3.5 in | 13.4 h/day | 17.9 h | 47% | 76% |
| August | 69° | 57° | 15 | 3.7 in | 11.3 h/day | 15.5 h | 47% | 78% |
| September | 61° | 50° | 12 | 2.6 in | 8.5 h/day | 12.7 h | 40% | 81% |
| October | 49° | 41° | 14 | 2.7 in | 5.2 h/day | 10.0 h | 44% | 84% |
| November | 40° | 34° | 14 | 2.5 in | 2.2 h/day | 7.5 h | 47% | 88% |
| December | 34° | 28° | 14 | 2.2 in | 1.3 h/day | 6.1 h | 46% | 88% |
The route from winter to summer, month by month
Each card shows the average high and low. The bar places that month between Tallinn's coldest night and warmest afternoon.
January
- Rain
- 14 days
- Sunshine
- 1.6 h
- Daylight
- 6.8 h
- Snow
- 9 days
February
- Rain
- 12 days
- Sunshine
- 3.4 h
- Daylight
- 9.1 h
- Snow
- 7 days
March
- Rain
- 10 days
- Sunshine
- 6.6 h
- Daylight
- 11.6 h
- Snow
- 4 days
April
- Rain
- 10 days
- Sunshine
- 10.1 h
- Daylight
- 14.4 h
- Snow
- 2 days
May
- Rain
- 8 days
- Sunshine
- 13.2 h
- Daylight
- 17.0 h
June
- Rain
- 10 days
- Sunshine
- 14.3 h
- Daylight
- 18.6 h
July
- Rain
- 15 days
- Sunshine
- 13.4 h
- Daylight
- 17.9 h
August
- Rain
- 15 days
- Sunshine
- 11.3 h
- Daylight
- 15.5 h
September
- Rain
- 12 days
- Sunshine
- 8.5 h
- Daylight
- 12.7 h
October
- Rain
- 14 days
- Sunshine
- 5.2 h
- Daylight
- 10.0 h
November
- Rain
- 14 days
- Sunshine
- 2.2 h
- Daylight
- 7.5 h
- Snow
- 4 days
December
- Rain
- 14 days
- Sunshine
- 1.3 h
- Daylight
- 6.1 h
- Snow
- 6 days
Looking for warmer alternatives? Browse warm places by month, or compare Tallinn's coolest part of the year: January, February, December.
Where Tallinn sits among other climates
- Tallinn averages 45°F (7°C) across the year - cooler than all but 3% of the 3496 cities we track.
These comparisons use the same ten-year window for every city in the dataset.