January in Peterhof averages a daily high of -3°C with nights around -7.6°C. Expect roughly 19 wet days totalling 46.6mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Peterhof is May–August.
Based on ST. PETERSBURG, RS (24.1km), 1995–2024. 25 years of January data.