December in Rahlstedt averages a daily high of 5.1°C with nights around 0.5°C. Expect roughly 15.9 wet days totalling 69.4mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Rahlstedt is May–September.
Based on HAMBURG FUHLSBUETTEL, GM (11.6km), 1995–2024. 30 years of December data.