December in Narva averages a daily high of -0.4°C with nights around -4.7°C. Expect roughly 18.6 wet days totalling 47.6mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Narva is June–August.
Based on NARVA, EN (4.6km), 1995–2024. 30 years of December data.