The climate in Helsinki during June can be summarized as mild and reasonably dry.
June is in the summer in Helsinki and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 18°C (64°F), whilst at night 10°C (49°F) is normal.
|Daytime temperature||17.6°C 63.7°F|
|Nightly temperature||9.6°C 49.3°F|
|Average temperature||13.6°C 56.5°F|
|Daily sunshine||10.7 hrs|
|Avg rainfall||38 mm 1.5 ins|
|Rainy days||10 days|
|Sea temperature||10.2°C 50.4°F|
|Windspeed||15.5kph 10 mph|
On average June is the 6th driest month of the year in Helsinki with around 38mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.7 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Helsinki in June 2021.
|Hottest month:||July||19.5°C 67.1°F|
|Driest month:||February||25mm 1ins|
|Coldest month:||February||-2.7°C 27.1°F|
|Wettest month:||August||75mm 3ins|