Seinäjoki Weather in August
Seinäjoki in August sees pleasant temperatures, with highs around 21°C (70°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 80 mm (3.1 in) on average, so pack waterproofs just in case.
Rainfall in Seinäjoki in August
You can typically expect 16 days of rain this month, averaging around 80 mm (3.1 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Seinäjoki in August
Weather in Seinäjoki is at its excellent in August. Highs reach 21°C (70°F), while nights settle around 10°C (50°F). August is known for being in the summer season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to around 10°C (50°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Seinäjoki in August
The month enjoys around 219 hours of sunshine, creating mostly sunny days with good weather conditions.If you're inclined towards comfortable temperatures and drier conditions, August is a good time to visit Seinäjoki.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Seinäjoki's climate page.
Seinäjoki Temperature in August
Min Temperature
10°C (50°F)
Max Temperature
21°C (70°F)
Chance of Rain
53%
Precipitation
80 mm (3.1 in)
Rainy days
16 days
Sunshine
219 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Seinäjoki typically drop from around 21°C (70°F) at the start of August to approximately 17°C (63°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 11°C (52°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 for Seinäjoki in August
Browse day-by-day weather records for Seinäjoki spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Seinäjoki historical weather extremes in August
Based on weather observations in Seinäjoki between 1976 and 2025, 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.
- The lowest daytime temperature in August was 9°C (48°F), recorded on August 26, 1986.
- The coldest night in August in Seinäjoki was on August 25, 2004, with a minimum of -2°C (28°F).
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
What to Wear in Seinäjoki in August
For Seinäjoki 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Seinäjoki in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Seinäjoki's climate page.
See the full Seinäjoki climate overview or explore weather in Finland.
