North Shore regions average 40-60 inches of rain per year, mainly during the winter months. South Shore annual rainfall averages 30-40 inches as the Haupu Mountain range blocks most of the showers.
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Anini Beach – North ShoreThis long stretch of sand is protected by an equally long reef making it one of the most protected beaches on the North Shore. This three-mile stretch of sand is great for swimming, snorkeling, scuba diving and windsurfing during summer months.
Kauai's West ShoreThe West Shore of Kauai is often underrated, but it's one of the most beautiful places on Earth, in our humble opinion. The West Shore is separated from the north by the Napali Coast, which gives the west a distinct desert-like feel.
Kauai is considered one of the rainiest places on the planet. Of course, that's one of the reasons it's also so lush. You can often find sunshine on the southern side, but it's not guaranteed, especially in the winter. Maui receives less rainfall than Kauai.
Most of Hawaii experiences only two seasons; the dry season running from May to October and the wet season from October to April; although Princeville is blessed with a consistent 6 inches or so of rain every month.
Nicknamed the “Garden Isle” for its magically lush appearance, Kauai is considered one of the rainiest places on earth. Over 460 inches of rain fall annually on this tiny Hawaiian island, making it prone of some flooding at certain times throughout the year.
The West Side of the island, the leeward coast of Kauai, is drier and the mountains in the center of the island block the rest of Kauai from the rain. This is one of the least visited parts of the island, excluding the sights along Highway 550 (like Waimea Canyon and Kokee State Park).
Lumahai is the subject of many postcards and paintings, but is also known on island as one of the most dangerous beaches for drownings and is not recommended for swimming. During the summer months the conditions at Luimahai are calmer, but still use caution. Lumahai is exposed to open ocean and strong currents.
The South Shore is definitely one of the more popular areas for tourists to stay in Kauai. The weather on this side of the island stays pretty sunny year-round, making it the perfect place for pool-side lounging and long beach days.
Po?ipu Beach on Kaua'i was revealed as the #18 bluest water in the nation, with a matching Hex color code of #73A9C3. This positions the beach's water among the bluest water in the nation and the best for a water-centric vacation.
North Shore is a whole different experience. A preeminent Hawaii destination for outdoor fun. Explore the great tropical outdoors with jungle walks, hikes to pillboxes for sunrise, or watch a surf competition. A North Shore vacation is more about experiencing Hawaii like a local.
So, if you're heading to Kauai in the winter, leave the north shore for the surfers and head to the south shore beaches for better swimming conditions. While the south shore is swimmable year-round, the summer months can bring choppier waters to Kauai beaches on the south end.
Best Months for Snorkeling in KauaiSnorkeling is one of the top activities to try in Kauai! Seeing the coral reef and dozens of colorful fish is a can't-miss experience. The best time of year to go snorkeling in Kauai is between May and September due to the warm weather and calm waters.