Climate Insights for Tallinn

The climate in Tallinn is cool. The average annual temperature is 7°C and approximately 729 mm of precipitation falls per year. Tallinn receives a notable amount of rainfall throughout the year, including during its driest month. Tallinn is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, March, when temperatures can drop to -4°C. Snowfall occurs from January to December, with around 128cm accumulating over the season.The climate in Tallinn is cool. The average annual temperature is 45°F and approximately 28.7 in of precipitation falls per year. Tallinn receives a notable amount of rainfall throughout the year, including during its driest month. Tallinn is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, March, when temperatures can drop to 24°F. Snowfall occurs from January to December, with around 50in accumulating over the season.

Temperatures in Tallinn vary considerably across the year, with a 25°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 21°C with a mean of 18°C. The coldest month is January, when overnight lows fall to -4°C and the daily average is -2°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between April and May, with a 6°C shift in average temperatures.Temperatures in Tallinn vary considerably across the year, with a 46°F difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 70°F with a mean of 64°F. The coldest month is January, when overnight lows fall to 24°F and the daily average is 28°F. Daily temperature variation is modest, with an average difference of 9°F between highs and lows. The sharpest temperature change occurs between April and May, with a 10°F shift in average temperatures.

Tallinn is a relatively dry area, receiving approximately 729 mm of precipitation annually, which averages out to around 61 mm per month. The wettest month is August, averaging 98 mm of rainfall. October and July also tend to see above-average precipitation. The driest month is March, with just 38 mm. That's 60 mm less than August, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 128cm accumulating over the season. January typically sees the most snow at around 38cm.Tallinn is a relatively dry area, receiving approximately 28.7 in of precipitation annually, which averages out to around 2.4 in per month. The wettest month is August, averaging 3.9 in of rainfall. October and July also tend to see above-average precipitation. The driest month is March, with just 1.5 in. That's 2.4 in less than August, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 50in accumulating over the season. January typically sees the most snow at around 15in.

Tallinn is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 18km/h in winter, 15km/h in spring, 14km/h in summer, 18km/h in autumn.Tallinn is moderately windy, with an average annual wind speed of 10mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is January, averaging 12mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in May, with average winds dropping to 8mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4mph between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 11mph in winter, 10mph in spring, 9mph in summer, 11mph in autumn.

The best time to visit Tallinn is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 81 mm per month. By contrast, January can be quite cold with temperatures dropping to -4°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Tallinn is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 63°F with modest rainfall averaging 3.2 in per month. By contrast, January can be quite cold with temperatures dropping to 24°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Tallinn based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Tallinn based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.