I went to Turks & Caicos in April with Anne. In fact, we got engaged while we were there. We stayed at the amazing Grace Bay Club and they pampered us like crazy. The room was spacious and very comfortable. The bathroom was ridiculous. And the concierge service was outstanding. We really wanted to spend most of our time doing nothing at all, and we did that very well. We had snacks and drinks on the beach, cooled off in the turquoise water, and got a little sun burned.
We took professional photos while we were there, including the surprise proposal.
Turks & Caicos has a rainy season from June-August, when daily high temperatures can reach 95F. The rest of the year is drier and usually in the 80's. Check out the island.