January in Georgetown averages a daily high of 16°C with nights around 2.4°C. Expect roughly 6.5 wet days totalling 60.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Georgetown is February–April.
Based on GEORGETOWN LAKE, TX US (6.4km), 1995–2024. 24 years of January data.