Finland weather in August
Finland in August averages 15°C (58°F), 67 mm of rain and 7 hours of sun a day.
Of the twelve months in Finland, August is the second warmest, the second wettest and the fourth sunniest.

- Average temp
- 15°C (58°F)
10–20°C · 49–68°F
- Rainfall
- 67 mm
Showers likely
- Sunshine
- 7 h
hours per day
What is Finland like in August?
Daytime
Days are mild.
Rain
Some rain is likely; pack for showers.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Finland in August?
A light rain jacket
About 67 mm falls this month — showers rather than washouts.
A warm mid-layer
Nights drop to around 10°C (49°F).
August compared with July and September
August in Finland is 2°C cooler than July and 11 mm drier than it, which averages 17°C (62°F).
August in Finland is 5.1°C warmer than September and 10 mm wetter than it, which averages 10°C (49°F).
Daylight in Finland in August
On 15 August the sun is up for 15 hours 56 minutes in Finland, rising about 05:22 and setting about 21:18 local time.
August ends 2 hours 53 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 3 hours 43 minutes short of June, the longest-lit month here.
Travel guides for Finland
What to read before you book.
Finland weather by month
TemperatureRainfall
How August compares with the rest of the year
August is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | -8°C / 18°F | 42 mm |
| February | -8°C / 18°F | 33 mm |
| March | -4°C / 26°F | 31 mm |
| April | 3°C / 37°F | 33 mm |
| May | 9°C / 48°F | 43 mm |
| June | 14°C / 57°F | 67 mm |
| July | 17°C / 62°F | 78 mm |
| August | 15°C / 58°F | 67 mm |
| September | 10°C / 49°F | 57 mm |
| October | 4°C / 38°F | 66 mm |
| November | -1°C / 30°F | 52 mm |
| December | -5°C / 23°F | 49 mm |
Similar weather in August
Other destinations whose August averages sit close to this one.
Check another month
This is the month you are reading. Change either side to look at another.
FAQs about Finland in August
August climate averages for Finland, 1991–2020.
Finland averages 15°C (58°F) in August, ranging from about 10°C (49°F) at night to 20°C (68°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 67 mm falls across August, enough to need a light jacket but not enough to reshape a trip.
Yes. August averages 15°C (58°F) against 10°C (49°F) in September — 5.1°C warmer.
August is 2°C cooler than July, and 11 mm drier.
Yes. August falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
About 7 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what August is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 15 hours 56 minutes of daylight in mid-August, against 19 hours 39 minutes in June and 5 hours 15 minutes in December.
On 15 August, sunrise is about 05:22 and sunset about 21:18 local time. Both shift across the month — the month ends 2 hours 53 minutes shorter than it starts.






