December in Suffolk averages a daily high of 12.2°C with nights around 1.9°C. Expect roughly 10.1 wet days totalling 96.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Suffolk is April–May.
Based on SUFFOLK LAKE KILBY, VA US (1.5km), 1995–2024. 30 years of December data.