May in Itoman averages a daily high of 27.1°C with nights around 21.7°C. Expect roughly 13.4 wet days totalling 256.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Itoman is October–May.
Based on NAHA, JA (8.3km), 1995–2024. 24 years of May data.