January in Surprise averages a daily high of 19.7°C with nights around 5.7°C. Expect roughly 3.1 wet days totalling 18.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Surprise is November–March.
Based on YOUNGTOWN, AZ US (5km), 1995–2024. 28 years of January data.