Helsinki in august: average Weather, Temperature and Climate
Weather in Helsinki in august 2025
The weather in Helsinki in the month of august comes from statistical datas on the last years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout august
good weather
Weather at 6am
63°F
Clear/Sunny
38% of time
24%
17%
14%
Weather at 12pm
68°F
Clear/Sunny
40% of time
30%
20%
6%
Weather at 6pm
65°F
Clear/Sunny
40% of time
25%
19%
10%
Weather at 3am
59°F
38%
26%
23%
7%
Evolution of daily average temperature and precipitation in Helsinki in august
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Helsinki in august.
The climate of Helsinki in august is good
the weather in Helsinki in august is wet (with 4.3in of precipitation over 7 days). Unfortunately, the weather conditions is worsening than the previous month since in july there is an average of 3.8in of rainfall over 6 days.
The climate nice in this location august. Temperatures are up to 68°F. The seasonal minimum is 63°F. Thus, the mean temperature average in august in Helsinki is 67°F. Note that these seasonal averages are in contrast with those observed in Helsinki in the month of august with a maximum record of 83°F in 2018 and a minimum record of 49°F in 2021. You can expect to have about 26 days with temperatures over 65°F, or 84% of time.
On this month of august, day length in Helsinki is generally 15:40. Sunrise is at 04:34 and sunset is at 20:14.
With a good weather, this month is a good time to go there in Finland.
Seasonal average climate and temperature of Helsinki in august
Check below seasonal norms These datas are set from the weather statements of the last years of the month of august.
| August | |||||
| Outside temperature | |||||
| Average temperature | 67°F | ||||
| Highest temperature | 68°F | ||||
| Lowest temperature | 63°F | ||||
| Highest record temperature | 83°F (2018) | ||||
| Lowest record temperature | 49°F (2021) | ||||
| Number of days at +65°F | 26 day(s) (84%) | ||||
| Sea temperature | |||||
| Average sea temperature | 66°F | ||||
| Lowest sea temperature | 62°F | ||||
| Highest sea temperature | 70°F | ||||
| Wind | |||||
| Wind speed | 19km/h | ||||
| Wind temperature | 63°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.3in | ||||
| Number of days with rainfall | 7 day(s) (22%) | ||||
| Record daily rainfall | 1.5in (2013) | ||||
| Other climate data | |||||
| Humidity | 79% | ||||
| Visibility | 9.58km | ||||
| Cloud cover | 37% | ||||
| UV index | 5 | ||||
| Daily sunshine hours | 14 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 04:34 | ||||
| Time of sunset | 20:14 | ||||
| Length of day | 15:40 | ||||
| Our opinion about the weather in august | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last august?
Here is the day by day recorded weather in Helsinki in august 2024:
56°F to 63°F
59°F to 70°F
58°F to 72°F
59°F to 72°F
59°F to 70°F
59°F to 76°F
61°F to 72°F
63°F to 72°F
65°F to 74°F
63°F to 67°F
58°F to 68°F
56°F to 65°F
56°F to 74°F
61°F to 72°F
59°F to 72°F
65°F to 70°F
61°F to 70°F
58°F to 70°F
59°F to 70°F
54°F to 68°F
59°F to 70°F
63°F to 67°F
58°F to 68°F
63°F to 68°F
59°F to 79°F
58°F to 67°F
61°F to 70°F
58°F to 72°F
58°F to 72°F
59°F to 77°F
59°F to 67°F
Map: other cities in Finland in august
Cities near Helsinki:
| Vantaa in august | good weather |
| Kirkkonummi in august | good weather |
| Porvoo in august | good weather |
| Lohja in august | good weather |
| Ingå in august | good weather |
| Mäntsälä in august | good weather |
| Riihimäki in august | good weather |
| Ekenäs in august | good weather |
| Hämeenlinna in august | good weather |
| Lahti in august | good weather |
| Forssa in august | good weather |
| Salo in august | good weather |
Click over cities on the map for information about the weather in august.
Helsinki
perfect weather
good
tolerable
bad
very bad
Weather data for Helsinki in august:
Weather data for Helsinki for august are derived from an average of the weather forecast since 2009 in Helsinki. There is a margin of error and these forecasts are to be considered as general information only. The weather in Helsinki can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Helsinki.