May in Ponce averages a daily high of 32°C with nights around 21.8°C. Expect roughly 10.6 wet days totalling 89.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Ponce is December–April.
Based on PONCE 4 E, PR US (10.6km), 1995–2024. 22 years of May data.