Planning a trip and wondering about the Hawaiʻi rainy season? Hawaiʻi doesn't really have a "bad" time to visit, but it does have a wetter one — and knowing what to expect can save your itinerary. Here's a real look at when the rain falls, where it falls hardest, and how to work around it so you still get plenty of sunshine on the sand.
When Is Hawaiʻi's Rainy Season?
Hawaiʻi's wet season generally runs from November through March, overlapping with the cooler winter months (locals call the two seasons simply "summer" and "winter," kau and hoʻoilo). This is also when the islands see bigger surf on north-facing shores and the occasional Kona low pressure system that can bring several days of steady rain island-wide. Outside of that window, from around April to October, rainfall drops off significantly and days are drier and more consistent.
It's Rarely an All-Day Event
Even during the wettest months, a lot of Hawaiian rain shows up as short-lived tropical showers rather than long gray days. Trade winds push moisture-heavy clouds against the mountains, they dump rain quickly on the windward (north and east-facing) sides, then clear out within twenty or thirty minutes. That quick cycle of sun and rain is exactly what produces Hawaiʻi's famous rainbows — chase one after a shower and you'll usually find it arcing right over the nearest ridge.
Leeward vs. Windward: Location Matters More Than the Calendar
Because Hawaiʻi's mountains block and wring out the trade winds, rainfall varies enormously depending on which side of an island you're standing on. Windward towns like Hilo or Hāna can see well over 100 inches of rain a year, while leeward resort areas like Waikīkī, Ka'anapali, or the Kona Coast stay comparatively dry and sunny even in winter. If a rainy forecast has you worried, booking a stay on the sunny (leeward) side is the single best fix.
- Driest bets year-round: Kona Coast (Big Island), Waikīkī and Ko Olina (Oʻahu), Kāʻanapali and Wailea (Maui), Poʻipū (Kauaʻi)
- Wetter, lusher areas: Hilo, Hāna, the North Shore of Kauaʻi, upcountry Maui
- Peak wet months: December through February
Wherever you land, our Islands & Places collection has a tee or print for every stretch of coastline, rain or shine.
Packing and Planning Around the Rain
A light rain jacket or packable poncho, a dry bag for electronics, and quick-dry clothing go a long way. Many visitors build in a flexible day or two so a rainy morning on one coast can turn into a drive to the sunny side in the afternoon. Rain also feeds the waterfalls, rainforests, and taro patches that make the islands so green, so a few showers are part of what makes Hawaiʻi look like Hawaiʻi.
Bottom Line
The Hawaiʻi rainy season is real, but it's rarely a trip-ruiner. Expect brief, warm showers concentrated in the winter months and on windward coastlines, plan your home base on the leeward side if sunshine is the priority, and pack light rain gear just in case. A little rain often just means a rainbow is on its way.
Bring the islands home: Explore our Islands & Places collection — original designs from our Native Hawaiian–owned studio in Kailua-Kona, Hawaiʻi. Here are a few of the newest additions:
Ohana Family Tee — a warm reminder that nobody gets left behind, rain or shine.
Lahaina Banyan Tee — honoring Maui's storied banyan, a living landmark that's weathered every season.
Mauna Kea Stargazing Tee — for clear, rain-free nights above the clouds on the Big Island.