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What is there to do in San Juan when it’s raining?

If you are planning a flight to San Juan and are looking to avoid the rain, you should avoid traveling during the months of May, August, and September. These months will typically see 5.1 inches or more of rain, meaning that rain is likely. If you do run into rain while in San Juan, there are still things to do and ways to enjoy your trip. Those looking for a great museum with interesting exhibits should take time out of their trip to San Juan to go see Museo de Historia, Antropología y Arte Río Piedras. Museo de Historia, Antropología y Arte Río Piedras is particularly popular with tourists when the weather in San Juan is not ideal. Many tourists kill time during rain and storms by going to shopping centers in the area, like Plaza las Americas.