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This is something you might want to add to your bucket list. August is also the perfect time to visit Finland. The days are long and the temperature is amazing.
Vaasa Weather in August
August in Vaasa averages 20°C (68°F) during the day and 11°C (52°F) at night. It is the wettest month of the year, with 77 mm (3 in) of rainfall on average, so waterproof gear is a must.
Rainfall in Vaasa in August
With the most rainfall occurring this month, it's practical to keep an umbrella handy for sudden downpours. The climate data from previous years indicates about 15 days of rain, averaging 77 mm (3 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Vaasa in August
August is one of the better months to visit Vaasa. Expect 20°C (68°F) during the day and 11°C (52°F) at night. During August, the summer season is in full swing. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 11°C (52°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Vaasa in August
There are approximately 219 hours of sunshine this month, resulting in mostly clear days.If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit.
Vaasa Temperature in August
Min Temperature
11°C (52°F)
Max Temperature
20°C (68°F)
Chance of Rain
49%
Precipitation
77 mm (3 in)
Rainy days
15 days
Sunshine
219 hours
Percentage Sunshine
Vaasa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Vaasa - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Vaasa typically drop from around 21°C (70°F) at the start of August to approximately 16°C (61°F) by the end. Nights are cool, with lows typically ranging from 8°C (46°F) to 13°C (55°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather records for Vaasa in August
Browse day-by-day weather records for Vaasa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Vaasa historical weather extremes in August
Based on weather observations in Vaasa between 1976 and 2026, these are the recorded extremes during August.
- On August 4, 2014, temperatures climbed to 31°C (88°F), marking the warmest August day on record.
- On August 31, 1998, Vaasa saw its coldest August day with temperatures maxing out at 9°C (48°F).
- Nighttime temperatures dropped to -2°C (28°F) on August 25, 2004, marking the coldest August night on record.
Best Places in Finland in August
Find out more about the weather in Finland and which places have the best travel conditions in this month. See all of Finland in August →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Vaasa in August
For Vaasa in August, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Vaasa in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping8/10 -
Outdoor sports9/10
Vaasa 3-Day Forecast
More climate data for Vaasa
See the full Vaasa climate overview or explore weather in Finland.
Popular in August
Where to go in August - average daytime high across popular destinations.
Bucket list
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