December in Guildford averages a daily high of 5.9°C with nights around 0.1°C. Expect roughly 18.5 wet days totalling 225mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Guildford is June–September.
Based on PITT MEADOWS CS, BC CA (8.5km), 1995–2024. 29 years of December data.