Are shower facilities available at Colombo Airport?

Shower facilities are available at Colombo Airport, but they are placed only inside the premium departure lounges and the transit hotel, so in the general terminal areas, there are no free public shower facilities at all.

If you want to freshen up before a flight, you can pay for walk-in access at participating lounges like the Palm or Araliya Lounge; these normally include towels and basic toiletries. Another option is to book a brief stay at the Serenediva Transit Hotel, and then you get full private bathroom access.