Swimming and snorkeling are still possibleOcean temps off the coast of Maui only fluctuate by 5 degrees between the winter and summer, so you can comfortably swim in the ocean year-round.
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Pacific Ocean temperatures on Honolulu shores are warmer than those of Hilo, but both are still swim-worthy at 77 and 73 degrees, respectively. Ocean temperatures in December all around the Hawaiian islands rest comfortably at about 77 degrees.
Airline tickets to Maui in January are at the lowest prices all year. Another good reason to go to Maui in January is the smaller crowds. January sees 8% fewer visitors than the yearly average. But, January is the wettest month of the year and temperatures are cooler, with an average high of 79 degrees.
December on Maui is the perfect escape from cold weather. Daytime temperatures remain comfortable in the low-80's and rarely drop below 70 at night. Though December is one of Maui's rainiest months, most rain showers (and large surf) are confined to the island's north shore.
The best time to visit Maui is during the shoulder seasons of spring (April to May) and fall (September to November). These months offer pleasant weather and fewer crowds compared to the peak summer and winter seasons, allowing you to explore the island without feeling overwhelmed.
Hawaii Crowds in DecemberThe end of the month gets pretty busy in Hawaii, with people flocking to this tropical paradise for the holidays. December is the most active tourist season for the islands. However, the rest of the month is tranquil, making it a lovely choice for a winter getaway.
However, in most cases, rain tends to fall at night in Hawaii. If the rain worries you, consider booking your stay on the leeward side of the islands, as they tend to be drier. You can also look at the islands with the least rain in December, which include Big Island and Maui.
Water Temperatures in MauiIn June and July, when temperatures are at their highest, the water is generally about 78°F/25°C, making it perfect or Molokini snorkeling. In August and September, when temperatures may slide back a few degrees, the water has gotten really warm and may be 80°F/26.6°C.
The best times to visit Maui are April through May and September through November. The spring and fall shoulder seasons provide the pleasant weather Hawaii vacationers seek without the high rates and heavy crowds that accompany the summer and winter.
According to data from the Hawaii Tourism Authority, if you want to visit Maui with the fewest crowds, you should visit in January, February, September, October, or November. The busiest months on Maui are March, June, July, August, and December.
South Maui: Kihei/WaileaWith comfortable temperatures, a lively atmosphere, and whales splashing offshore, December is one of the sweetest times to stay in South Maui.