Phoenix, Arizona’s largest city cools down quite nicely in the winter so you can enjoy boating at Lake Pleasant with averages highs about 70 degrees and lows in the mid to high 40s. However, if you find that weather still a little too cool for your preference, you can travel southwest down to Yuma, Arizona where average winter highs range from 67 to 77 degrees. Here you can enjoy many boating activities along the Colorado River at the sunniest place on Earth, where the sun shines 94% of the year. Regardless of where you take your family for a winter getaway, make sure your boat insurance coverage will be in full effect once you reach your vacation destination.