May in Mostaganem averages a daily high of 24.9°C with nights around 13.3°C. Expect roughly 4.3 wet days totalling 22.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Mostaganem is April–June.
Based on MOSTAGANEM, AG (5.9km), 1995–2024. 15 years of May data.