December in Gulfport averages a daily high of 17.9°C with nights around 7.3°C. Expect roughly 10.2 wet days totalling 120.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Gulfport is March–May.
Based on GULFPORT BILOXI AIRPORT, MS US (5.1km), 1995–2024. 27 years of December data.