Air Guitar World Championship Finland
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.
Kouvola Weather in August
Kouvola in August averages 22°C (72°F) during the day and 12°C (54°F) at night. This is part of the summer season, and quite a bit of rainfall is expected this month.
Rainfall in Kouvola in August
Typically, about 16 days will experience rainfall, with an average of 74 mm (2.9 in) for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.
Temperature in Kouvola in August
The temperature in Kouvola in August is excellent. Daytime highs reach 22°C (72°F), with nights dropping to 12°C (54°F). August is part of the summer season. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows of 12°C (54°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Kouvola Temperature in August
Min Temperature
12°C (54°F)
Max Temperature
22°C (72°F)
Chance of Rain
52%
Precipitation
74 mm (2.9 in)
Rainy days
16 days
Kouvola Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kouvola - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kouvola typically drop from around 22°C (72°F) at the start of August to approximately 17°C (63°F) by the end. Nights are cool, with lows typically ranging from 10°C (50°F) to 14°C (57°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 Kouvola in August
Browse day-by-day weather records for Kouvola spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kouvola historical weather extremes in August
Based on weather observations in Kouvola between 1976 and 2026, these are the recorded extremes during August.
- Kouvola recorded its highest August temperature of 33°C (91°F) on August 7, 2010.
- On August 31, 1987, Kouvola saw its coldest August day with temperatures maxing out at 9°C (48°F).
- Nighttime temperatures dropped to 1°C (34°F) on August 25, 1987, 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 Kouvola in August
For Kouvola 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.
What To Do in Kouvola in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping8/10 -
Outdoor sports9/10
Kouvola 3-Day Forecast
More climate data for Kouvola
See the full Kouvola 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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Air Guitar World Championship Finland
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