Which is the hottest month in Helsinki?

The hottest time of year in Helsinki is normally July. Expect maximum daytime temperatures to reach 21°C.

Which month has the most rain in Helsinki?

In terms of rainfall, August is usually the wettest month in Helsinki with 77mm on average. There are normally 16 days in August with some rain.

When is it sunniest in Helsinki?

The sunniest time of year in Helsinki is normally June with bright sunshine on average for 50% of daylight hours; that's 9 hours of sunshine per day.

When is the sea warmest in Helsinki?

The sea is usually at its warmest in Helsinki in August when the water temperature reaches 16°C.

Best time to visit Helsinki

Q: When is the best time to visit Helsinki?

The best time to visit Helsinki is July based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

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Helsinki by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Destination

When is the best time to visit Helsinki?

The best time to visit Helsinki is July based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0
Jan
0
Feb
0.5
Mar
1.5
Apr
2
May
4
Jun
4
Jul
3.5
Aug
0.5
Sep
0
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°C)

-4
Jan
-3
Feb
1
Mar
7
Apr
15
May
19
Jun
21
Jul
20
Aug
14
Sep
9
Oct
3
Nov
-1
Dec

Hours of Sunshine (daily)

1
Jan
2
Feb
4
Mar
6
Apr
8
May
9
Jun
8
Jul
7
Aug
4
Sep
3
Oct
1
Nov
1
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Finland (Helsinki) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)