This bar/restaurant/chill out spot is actually better for a late afternoon drink than late evening, and is definitely a must-do when the sun is out! The location seems a bit strange at first - underneath a big parking garage - but if you walk towards the back you will find one of the most relaxed spots in Amsterdam. On a sunny day it is always packed, but if you can't find a proper seat you can just sit at the waterfront and watch the boats passing by (or even stopping to get one of the delicious gin and tonics they serve here). Make sure to order some snacks as well - they serve a really good Surinamese Roti!
Marnixstraat 246, 1016 TL Amsterdam, Netherlands