Helsinki vs Tallinn

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Helsinki edges ahead as the better destination in October. Helsinki offers 5 hours of daily sunshine with only 12 rain days, while Tallinn sees 5 sunshine hours and 13 rain days.

Helsinki is on the cooler side at 8°C, requiring warmer clothing. Tallinn is cooler at 9°C.

For travelers who prioritize dry weather, Helsinki is the stronger choice in October.

Helsinki reaches an average high of 8°C (46°F) and drops to 4°C (39°F) at night during October. The daily temperature range is 4°C, meaning relatively stable temperatures from day to night.

Tallinn averages 9°C (48°F) for the high and 5°C (41°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 October.

Helsinki receives approximately 63 mm of rainfall across 12 rain days during October. You can expect rain roughly every other day.

Tallinn sees 64 mm over 13 rain days. That makes Helsinki the drier option by 1 rain day and 1 mm of total precipitation.

Both cities share similar humidity levels at 65%.