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
July in Helsinki, Finland, is an agreeable summer month, with average temperature varying between 21.5°C (70.7°F) and 14.2°C (57.6°F).

Temperature

The warmest month 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).

Rainfall

In July, in Helsinki, the rain falls for 12 days. Throughout July, 63mm (2.48") of precipitation is accumulated. Throughout the year, in Helsinki, Finland, there are 182 rainfall days, and 655mm (25.79") of precipitation is accumulated.

Snowfall

In Helsinki snow does not fall in April through October.

Sea temperature

In Helsinki, in July, the average water temperature is 15°C (59°F).
Note: Swimming in 15°C (59°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

In Helsinki, the average length of the day in July is 18h.

Sunshine

The average sunshine in July is 9.4h.

UV index

Months with the highest UV index are June and July, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the warmest month in Helsinki?

July is the warmest month in Helsinki, 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 Helsinki, Finland, 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 much does it rain in Helsinki in July?

In Helsinki, Finland, during July, the rain falls for 12 days and regularly aggregates up to 63mm (2.48") of precipitation.

When it does not snow in Helsinki?

In Helsinki, Finland, snow does not fall in April through October.

What is the sea temperature in July in Helsinki?

In Helsinki, in July, the average water temperature is 15°C (59°F). Swimming in 15°C (59°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

What is the average length of the day in July in Helsinki?

In July, the average length of the day in Helsinki is 18h.

How many hours of sunshine does Helsinki have in July?

In Helsinki, Finland, the average sunshine in July is 9.4h.

What are the months with the highest UV index in Helsinki?

June and July, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index reading in July in Helsinki?

The average daily maximum UV index in July in Helsinki, Finland, is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.
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 least 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 least 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 least 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).
The 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 the shortest days is December (Average daylight: 6h).

  • Average sunshine in July: 9.4h

The month with the most sunshine is June (Average sunshine: 9.9h).
The month with the 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).