December in Mérida averages a daily high of 14.8°C with nights around 4.9°C. Expect roughly 9.3 wet days totalling 61.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Mérida is March–May.
Based on BADAJOZ TALAVERA LA REAL, SP (42.3km), 1995–2024. 30 years of December data.