March in Guantánamo averages a daily high of 30.2°C with nights around 21°C. Expect roughly 6.2 wet days totalling 59.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Guantánamo is December–February.
Based on GUANTANAMO BAY NAS, CU (27.9km), 1995–2024. 20 years of March data.