May in Jizan averages a daily high of 37.7°C with nights around 28.8°C. Rain is rare — about 0 wet days and 0mm across the month. Generally workable, with some weather to plan around.
Across the year, the best time to visit Jizan is December–March.
Based on KING ABDULLAH BIN ABDULAZIZ, SA (3.9km), 1995–2024. 27 years of May data.