We traveled in Cuba in March so the weather was basically ideal with some small exceptions when it was too hot. Considering this, travelling light is easier than in colder destinations.
I travel with a up to 10kg backpack in most of my trips so that I can get it as a carry on. This saves you a lot of time both at the check in and once you arrive at your destination and also avoids, especially when having connecting flights, to have your luggage sent somewhere else. And then again, why would you need more than 10kg of luggage anyway?
If you did not already know it, I travel with the Osprey Fairpoint 55L (S) Backpack. The backpack consist out of 2 parts. One 15L daypack which you can carry attached with a zipper to the main backpack or in front and the main Backpack with is 37-40L (depending if S or M size). In the picture I have the small backpack inside the big one.
What do I take with me
Below you can find a list per category on what I get along.
All together was somewhere under 10kg. I packed clothes in eBags, cosmetics I carry along in an IKEA pouch while electronics I try the best to keep in a waterproof bag. btw I used my scarf as a beach towel as well.
If I missed anything and have a question about packing don't hesitate to write me.