Helsinki vs Tallinn

Helsinki and Tallinn are closely matched in December. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

Helsinki is on the cooler side at 0°C, requiring warmer clothing. Tallinn is cooler at 1°C.

For travelers who prioritize dry weather, both cities are equally dry in December.

Helsinki reaches an average high of 0°C (32°F) and drops to -3°C (27°F) at night during December. The daily temperature range is 3°C, meaning relatively stable temperatures from day to night.

Tallinn averages 1°C (34°F) for the high and -3°C (27°F) for the low, with a daily range of 4°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in December.

Helsinki receives approximately 57 mm of rainfall across 12 rain days during December. You can expect rain roughly every other day.

Tallinn sees 48 mm over 12 rain days. Both cities are equally rainy this month.

Both cities share similar humidity levels at 65%.