October in Kouvola averages a daily high of 8°C with nights around 2.3°C. Expect roughly 15.6 wet days totalling 73.7mm. A hard month to visit for comfort alone.
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 October data.