Ryanair offer travel insurance policies as an add on to a flight booking, or they can also be purchased as stand-alone products. Ryanair travel insurance is offered in two levels, so you can choose the option that's right for you and your wallet.
Jamaica's rainy season coincides with ours here in Florida (I am in the Tampa area) for the most part. We have anywhere from 30-50% chance of rain daily until hurricane season is over. I didn't mean you have rain every day, all day from May to December in Jamaica, but I assume it is a lot like here in Florida.
Fruits grow extremely well in Jamaica's tropical climate. Mangoes, pineapple, papaya, bananas, guava, coconuts, ackee, and plantains are just a few of the fruits eaten fresh or used in desserts. Ackee is the national fruit of Jamaica.