The water temperature in Maui in March is generally around 75-77°F (24-25°C). While this may be a bit cool for some, it's still comfortable enough for swimming, snorkeling, and other water activities.
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Water TemperaturesAverage ocean temperatures throughout Hawaii stay around 75°F during this final winter month, meaning you'll always have pleasant temperatures for swimming, snorkeling, and other fun activities in the water.
Believe it or not, even in the cooler months on Maui, snorkeling is still prime! Our waters are still in the 70's and air temperatures typically in mid to high 80's!
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.
May to September, where you'll find perfect conditions in snorkeling sites all over the islands. Protip: If you want to see Humpback Whale migrations while snorkeling in Hawaii, try to plan your trip between November and May (the best months are January and February).
Ocean ConditionsNorth shore waves get massive during the winter in Hawaii, but they start to die down in March. If you're a good surfer, you might catch some huge swells early in the month. By the end of March, you should find more calm days for swimming and low-key surfing even on the north shore beaches.
You can also sign up for The Snorkel Store's daily email for updates (they also sell gear, but are only in Lahaina). Snorkeling is mostly in west Maui and south Maui. In general, the North Shore near Paia and east Maui near Hana are too rough. The water is generally more calm in the morning.
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.
If the weather is your only consideration, April is perhaps the best time to visit Hawaii. Do you want to enjoy sunny days in the Kohala coast region, explore the Kilauea Volcano, or go surfing in Waikiki?
If you're trying to decide the best time to visit Hawaii, March could be the month you're looking for. With fantastic weather all year long, you can't go wrong visiting Hawaii any month, but the time of year can affect travel costs, crowds, and things to see and do.
Snorkeling is hands-down much better on Maui. Oahu does have some great snorkel spots, but if you want to get into the water, snorkel easily, and not have the ocean too overcrowded, Maui is your place. Plus, you'll see turtles everywhere.