May in Ilagan averages a daily high of 35.6°C with nights around 22.7°C. Expect roughly 12.3 wet days totalling 139.9mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Ilagan is January–March.
Based on TUGUEGARAO, RP (57km), 1995–2024. 16 years of May data.