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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.
Joensuu Weather in August
August in Joensuu typically sees daytime highs of 20°C (68°F) and nighttime lows of 12°C (54°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the summer season.
Rainfall in Joensuu in August
This month experiences about 17 days of rain according to historical data, averaging 90 mm (3.5 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Joensuu in August
August is a good time to be in Joensuu. Days are excellent, reaching 20°C (68°F), with nights around 12°C (54°F). Experience the summer season in August. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to around 12°C (54°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 Joensuu in August
Expect sunny days throughout the month, with an estimated 198 hours of sunshine. This makes it a pleasant time to visit Joensuu.If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Joensuu.
Joensuu Temperature in August
Min Temperature
12°C (54°F)
Max Temperature
20°C (68°F)
Chance of Rain
56%
Precipitation
90 mm (3.5 in)
Rainy days
17 days
Sunshine
198 hours
Percentage Sunshine
Joensuu Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Joensuu - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Joensuu 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 14°C (57°F).
Average temperatures in August
Historical weather records for Joensuu in August
Browse day-by-day weather records for Joensuu spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Joensuu historical weather extremes in August
According to our 27 years of weather records for Joensuu, the following extremes were recorded between 1999 and 2026.
- The hottest August day on record in Joensuu reached 31°C (88°F) (August 7, 2010).
- Joensuu experienced its chilliest August day on August 31, 2008, reaching only 9°C (48°F).
- The lowest overnight temperature recorded in August was 2°C (36°F) (August 29, 2016).
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 Joensuu in August
Pleasant temperatures in August mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Joensuu in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling9/10 -
Walking9/10 -
Camping8/10 -
Outdoor sports9/10
Joensuu 3-Day Forecast
More climate data for Joensuu
See the full Joensuu climate overview or explore weather in Finland.
Popular in August
Where to go in August - average daytime high across popular destinations.
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