July in Kouvola averages a daily high of 23.3°C with nights around 13.2°C. Expect roughly 12.1 wet days totalling 74mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Kouvola is May–August.
Based on KOUVOLA UTTI LENTOPORTINTIE, FI (13.5km), 1995–2024. 30 years of July data.