Planning for the weather is a good way to make your trip to Batopilas relaxing and enjoyable, especially when you're splurging. The hottest months are usually June and May with an average temp of 70°F, while the coldest months are January and December with an average of 52°F. The rainiest months in Batopilas are July, August, June, and September, with each month seeing an average of 9 inches of rainfall.