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 | 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% |
Tallinn month by month
Average high and low for each month, with the bar showing where it sits in Tallinn's year (left is the coldest night, right is the 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
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
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. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.