Tallinn, Estonia Climate & Monthly Averages
The climate of 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).
Climate quick facts
- 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%
Temperatures through the year
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.
Rain, sun and snow
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).
How Tallinn compares
- Tallinn averages 45°F (7°C) across the year - cooler than all but 3% of the 3496 cities we track.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 31° | 23° | 14 | 2.2 in | 1.6 h/day | 87% |
| February | 33° | 25° | 12 | 1.9 in | 3.4 h/day | 86% |
| March | 38° | 28° | 10 | 1.4 in | 6.6 h/day | 79% |
| April | 47° | 34° | 10 | 1.8 in | 10.1 h/day | 74% |
| May | 59° | 43° | 8 | 1.8 in | 13.2 h/day | 68% |
| June | 68° | 53° | 10 | 2.5 in | 14.3 h/day | 70% |
| July | 70° | 57° | 15 | 3.5 in | 13.4 h/day | 76% |
| August | 69° | 57° | 15 | 3.7 in | 11.3 h/day | 78% |
| September | 61° | 50° | 12 | 2.6 in | 8.5 h/day | 81% |
| October | 49° | 41° | 14 | 2.7 in | 5.2 h/day | 84% |
| November | 40° | 34° | 14 | 2.5 in | 2.2 h/day | 88% |
| December | 34° | 28° | 14 | 2.2 in | 1.3 h/day | 88% |
Tallinn month by month
Tallinn weather in January
January brings highs around 31°F (-1°C), lows near 23°F (-5°C), about 14 wet days and roughly 9 snowy days - typically the coldest month of the year in Tallinn.
Tallinn weather in February
February brings highs around 33°F (0°C), lows near 25°F (-4°C), about 12 wet days and roughly 7 snowy days.
Tallinn weather in March
March brings highs around 38°F (4°C), lows near 28°F (-2°C), about 10 wet days and roughly 4 snowy days - typically the driest month of the year in Tallinn.
Tallinn weather in April
April brings highs around 47°F (8°C), lows near 34°F (1°C), about 10 wet days and roughly 2 snowy days.
Tallinn weather in May
May brings highs around 59°F (15°C), lows near 43°F (6°C), about 8 wet days.
Tallinn weather in June
June brings highs around 68°F (20°C), lows near 53°F (12°C), about 10 wet days - typically the sunniest month of the year in Tallinn.
Tallinn weather in July
July brings highs around 70°F (21°C), lows near 57°F (14°C), about 15 wet days - typically the hottest month of the year in Tallinn.
Tallinn weather in August
August brings highs around 69°F (21°C), lows near 57°F (14°C), about 15 wet days - typically the wettest month of the year in Tallinn.
Tallinn weather in September
September brings highs around 61°F (16°C), lows near 50°F (10°C), about 12 wet days.
Tallinn weather in October
October brings highs around 49°F (10°C), lows near 41°F (5°C), about 14 wet days.
Tallinn weather in November
November brings highs around 40°F (5°C), lows near 34°F (1°C), about 14 wet days and roughly 4 snowy days.
Tallinn weather in December
December brings highs around 34°F (1°C), lows near 28°F (-2°C), about 14 wet days and roughly 6 snowy days.
Seasons 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.
Climate questions, answered
How sunny is Tallinn?
How humid does Tallinn get?
How often does it rain in Tallinn?
How much do temperatures drop at night in Tallinn?
Is Tallinn cold in winter?
Is Tallinn warmer or cooler than most cities?
Best time to visit Tallinn
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.
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.
Tallinn temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.