The weather in Puerto Penasco Mexico (Rocky Point) is famous for being one of the most temperate places, month by month, to visit or live in the Sonoran deserts! In November people still swim in the water! Puerto Penasco weather in December is a bit cold for swimming, but you can still often sit in the warm sun and thank your lucky starfish that you don’t have to shovel snow! September, October, June and July are optimal for the desert dwellers. Below are some links for Radar, Maps, daily forecasts, weekly forecasts and even a Puerto Penasco Beach and Pool weather score!