Are the Galle Fort maritime museums open on Sundays?

Yes, the National Maritime Archaeology Museum in Galle Fort is usually open on Sundays, though it is strictly shut on Mondays, on Sundays during Poya weekends, and on major national public holidays.

Operational hours are generally from 8:30 AM until 5:00 PM. Saturdays and Sundays are when local visitors often go, so heading there early on a Sunday morning can feel calmer, quieter, and less crowded. Also, museum timetables across Sri Lanka can sometimes change, with unannounced closures happening for maintenance work or special state occasions. If your plan really depends on this place, ask your hotel front desk to call and verify the museum is fully in motion on the morning you plan to go.