rain, hurricane, rain, hurricane , repeat.
I would rebook for June or July at latest
Hurricane season runs from June 1 to November 30 on the island and for the other islands in the Caribbean Sea. So you can have a hurricane in June or July. You have to realize that the island is not continually besieged by storms and bad weather for the entire six months.
The season is more active from mid of September to mid of October.
But tropical storms or hurricanes not necesarry are going to pass close to Puerto Rico. They can pass up North or by the South of the island.
August is a great month to visit Puerto Rico.
check the following topic for more information:viewtopic.php?f=1&t=2373259