Best February Vacation Weather in the Continental US. Warmest City = Miami, Florida averages highs of 78.1 °F daily. Warmest Ocean = the Atlantic at Miami Beach, Florida is 73 °F. Warmest Park = Everglades Park, Florida has daytime highs of 83.5 °F. Driest Warm Place = Lajitas, TX get 0.27 inches of rain. Sunniest Warm City = Yuma, southwest Arizona, has 87 % sunshine.