We went to STJ once during early May and it did rain everyday, more so than in March and April. I later read that this was their rainy season. But don't worry, its still very warm and it doesn't rain all day from my recollection, more likely overnight. It may produce some slightly rocky waters so snorlking in all spots may be less than perfect and it may cause a bumpy boat ride maybe. You'll love it anyway!

I just returned form St Thomas last night ....I am so depressed....well anyways, I watched the weather forcasts and it said it was suppose to rain all week that we were to be there. We had rain one day(yesterday am) and as it rained I thought I would be happy to go home. However, the rain lasted less than 20 minutes and the sun came out....how I hated to leave. And dont worry when it rains its still HOT!!! Have a great vacation.

we were there two weeks ago and they said rain for seven days we had only a little rain at night and two other times....it was great...ignore the weather channel!

Thanks to all for the truth about the weather in STJ. Whatever it will be, I am looking forward to the trip! LF