Tallinn, Estonia Weather
Tallinn hourly forecast: next 24 hours
Today's high of 66°F (19°C) is about 5°F (3°C) above the typical September high of 61°F (16°C).
Current conditions in detail
Tallinn weather tomorrow (Thursday, September 17)
Tomorrow in Tallinn looks patchy rain nearby, with a high of 60° and an overnight low of 53°. There is a 75% chance of rain - plan accordingly. Winds top out near 19 mph, and the UV index reaches 2 (low).
Tallinn 14-day forecast
About the weather 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).
Tallinn weather: 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).
Season by season
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.
Average temperatures in Tallinn by month
| 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% |