Hi
Im going 18 March from Heathrow.
My friend has also suggested shorts and t shirts for day time ... I'm going to take a pac a Mac in case of downpours too. I've been caught out and soaked to the skin before now! It's ok tho as it'll be hot... soon dry out!
Light jacket/ cardi for evenings in case it feels cool after heat of the day.
I've also got some very lightweight craghopper walking trousers in case there are millions of mossies ( plus my essential Jungle formula spray).
Have a great time