Helsinki vs Tallinn

Helsinki and Tallinn are closely matched in August. 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 sits in the comfortable travel range at 20°C. Tallinn is also comfortable at 20°C.

For travelers who prioritize dry weather, Helsinki is the stronger choice in August. Tallinn receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Helsinki reaches an average high of 20°C (68°F) and drops to 14°C (57°F) at night during August. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.

Tallinn averages 20°C (68°F) for the high and 14°C (57°F) for the low, with a daily range of 6°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 August.

Helsinki receives approximately 76 mm of rainfall across 12 rain days during August. You can expect rain roughly every other day.

Tallinn sees 78 mm over 14 rain days. That makes Helsinki the drier option by 2 rain days and 2 mm of total precipitation.

Both cities share similar humidity levels at 65%.