Lots of things happen before, during and after a rainstorm. Dramatic changes in wind velocity and direction are common. This means one is going to be out in the cockpit and get wet. Perhaps several trips. (There is no point in standing in the rain once the boat is re-trimmed. Unless it is the only vantage point to look for other boats.) Another characteristic is that things happen quickly. I always marveled at my volunteer crew who thought it was OK to take 5 minutes to dress in their foul weather gear as Reboot was going crazy.
In the old days I would just jump into the cockpit and do what needed to be done. This usually resulted in a large pile of wet clothing that needed to be dried when the sun came out. Sometimes that was a couple of days.. Now I just strip bare and get a free shower out of the deal. (It is useful to remember I sail solo.) This works because I am in the tropics. I would not recommend it on a passage from Newfoundland via Iceland and Greenland to Scotland.
Fair winds and following seas :)
Underway to Maumere, Indonesia