January in Lafayette averages a daily high of 17.1°C with nights around 6.3°C. Expect roughly 9.6 wet days totalling 126.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Lafayette is February–April.
Based on LAFAYETTE REGIONAL AIRPORT, LA US (4.1km), 1995–2024. 30 years of January data.