Average temperature in Helsinki throughout the month of June is 12. With the average high being 19 and lows around 9. See our table below for a full breakdown:

MonthDegrees Celsius
Temperature12
High Temperature19
Low Temperature9

Helsinki, Finland Weather in June FAQs

What weather can I expect?

You can expect that it will be 12 celsius but it does vary throughout the day

How hot is it throughout the summer months?

Summer temperatures on average are about 20 degrees celsius

What’s the difference in Summer weather to Winter?

Usually you can expect about a 7 celsius

Click to see more Helsinki Weather including Helsinki, Finland May Weather and Helsinki, Finland July Weather