July weather forecast and climate
Helsinki, Finland

A scenic reflection in the water of the illuminated city of Helsinki in Finland, viewed from the water
A scenic reflection in the water of the illuminated city of Helsinki in Finland, viewed from the water

What is the warmest month in Helsinki?

The warmest month in Helsinki is July, with an average high-temperature of 21.5°C (70.7°F) and an average low-temperature of 14.2°C (57.6°F).

What is the temperature in July in Helsinki?

In July, the average high-temperature is 21.5°C (70.7°F), and the average low-temperature is 14.2°C (57.6°F).

How many days does it rain in July in Helsinki?

In Helsinki, Finland, in July, during 12 rainfall days, typically, 63mm (2.5") of precipitation is accumulated.

What is the sea temperature in July in Helsinki?

In Helsinki, Finland, in July, the average water temperature is 15°C (59°F). For most, swimming in 15°C (59°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
Average temperature in July - Helsinki, Finland
  • Average high temperature in July: 21.5°C

The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is February (-1.9°C).

  • Average low temperature in July: 14.2°C

The month with the highest average low temperature is July (14.2°C).
The coldest month (with the lowest average low temperature) is February (-7.4°C).

Average rainfall in July - Helsinki, Finland
  • Average rainfall in July: 63mm

The wettest month (with the highest rainfall) is August (80mm).
The driest month (with the lowest rainfall) is April (32mm).

Average rainfall days in July - Helsinki, Finland
  • Average rainfall days in July: 12 days

The month with the highest number of rainy days is December (20 days).
Months with the lowest number of rainy days are April and May (11 days).

Average snowfall in July - Helsinki, Finland
  • Average snowfall in July: 0mm

The month with the highest snowfall is February (230mm).
Months with the lowest snowfall are April, May, June, July, August, September and October (0mm).

Average sea temperature in July - Helsinki, Finland
  • Average sea temperature in July: 15°C

The best month for swimming (with the highest average sea temperature) is August (16°C).
Coldest months (with the lowest average sea temperature) are February and March (1°C).

Average daylight in July / Average sunshine in July - Helsinki, Finland
  • Average daylight in July: 18h

The month with the longest days is June (Average daylight: 18.8h).
The month with shortest days is December (Average daylight: 6h).

  • Average sunshine in July: 9.4h

The month with most sunshine is June (Average sunshine: 9.9h).
The month with least sunshine is December (Average sunshine: 0.9h).

Average UV index in July - Helsinki, Finland
  • Average UV index in July: 5

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 0).

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