Ocean Beach Custom Search   For the period of the summer months at Ocean Beach highs are frequently in the 50's. All through the dark hours of summer temperatures sink down into the 40's. During the wintertime this place gets highs in the 30's with temperatures at Ocean Beach dipping down into the 20's through winter nights. From a rain point of view Ocean Beach is a reasonably normal site. The month of September is the wettest with most of the rain, and April is when it's the driest.            Map Detailed Map Weather Local weather forecast These outdoors activities are available near Ocean Beach.