Tallinn Weather in December
In December, Tallinn averages a high of 1°C (33°F) and a low of -4°C (25°F), from 55 years of daily records (1971–2026).
1°C
Average high
33°F
-4°C
Average low
25°F
12°C
Record high
53°F · December 20, 2015
-27°C
Record low
-16°F · December 29, 1978
What December Is Like in Tallinn
- December in Tallinn has become 2.3°C (4.2°F) warmer on average: the 2011–2025 average against 1970–1989.
- 6 of the 10 warmest Decembers on record in Tallinn have come since 2011.
- December 2025 was the 3rd warmest December in 55 years of records, 4.0°C (7.1°F) above the long-run average.
- The coldest December reading, -27°C (-16°F) on December 29, 1978, has not been matched in 48 years.
At least 1 mm of rain falls on 45% of December days, and the month averages 59 mm in total.
Warmest: 2006 (6.1°C)Latest: 2025 (4.3°C)10-year averageLong-run average (0.7°C)
Look Up a Day in December
See the weather in Tallinn on any December date, year by year.
Source: NOAA GHCN-Daily, Tallinn (1971–2026). Averages cover 1971–2026. How we compute this