Maui Weather by Month: A Season-by-Season Overview

Maui does not run on the four-season calendar that shapes travel planning in much of the mainland United States. Instead, the island’s climate is better understood as two long seasons layered on top of a landscape that creates several different microclimates at once. Knowing the shape of those patterns, rather than chasing a specific temperature, is the more useful way to plan a trip here.

The two-season pattern behind Maui’s climate

Sitting in the tropics in the northern hemisphere, Maui experiences a drier season and a wetter season rather than the usual spring-summer-fall-winter progression. The drier season runs roughly from May through October, coinciding with the mainland’s spring and summer. The wetter season runs roughly from November through April, overlapping with the mainland’s fall and winter.

The distinction between the two is less about hot versus cold and more about how often rain shows up, and how it arrives. In the drier season, days tend to follow a steadier rhythm with less rain overall. In the wetter season, showers are more frequent, though they are often short and localized rather than the all-day, the whole island rain some visitors expect. A cloudburst can pass through Kihei in the morning and never reach Lahaina at all.

This two-season framing is a helpful starting point, but it is a broad pattern, not a guarantee. Any given week can defy the seasonal average in either direction, which is part of why this page describes tendencies rather than promising a specific experience for a specific month.

Why one island has such different weather from coast to coast

Maui’s climate is shaped as much by geography as by the calendar. The island’s volcanic peaks, especially Haleakala, sit in the path of the prevailing trade winds that blow from the northeast. As moist air is pushed up and over the mountains, it cools and drops its moisture on the windward side, the side facing the wind. By the time that air descends on the other side, it has lost much of its rain, leaving the leeward side comparatively dry.

That single mechanic explains most of what a traveler notices when moving between coasts. The windward side includes Paia, Hookipa, and the long stretch of the Hana Highway on the way to Hana and the Kipahulu district. This side sees more frequent rain across the year, which is part of what keeps it green and helps feed the waterfalls that draw people to that drive in the first place.

The leeward side includes the west coast around Lahaina and Kaanapali, and the south shore around Kihei, Wailea, and Makena. Both stay comparatively dry across most of the year, which is a large part of why the island’s beach resorts cluster there rather than on the windward coast.

Between these two extremes sits the isthmus around Kahului and Wailuku, and the slopes of the Upcountry region climbing toward Haleakala. Conditions on these middle-ground stretches vary with elevation and exposure, and they do not fit neatly into either the “wet windward” or “dry leeward” description.

The Haleakala summit runs on its own climate

The single most important exception to any general description of “Maui weather” is the summit of Haleakala. At 3,055 meters, the summit sits far enough above the coast that its conditions do not track with conditions at the beach. Coastal warmth says nothing about what the summit will be doing on the same day.

Visitors heading up for the sunrise reservation or an evening summit visit should treat it as a separate climate zone requiring separate preparation: a warm layer, wind protection, and a plan that does not assume beach weather will follow them uphill. This applies across the calendar, not just in the wetter season, since altitude affects the summit’s temperature far more than the time of year does. The practical packing implications of this are covered separately; the point here is simply that summit conditions and coastal conditions are two different subjects.

What “wetter season” and “drier season” mean in practice

It helps to be specific about what changes between the two seasons, since neither one turns Maui into a washout or a drought.

During the drier season, roughly May through October, the leeward coasts see long stretches with little rain, and even the windward side tends to see somewhat less frequent rain than its own wetter-season average. This is also the stretch of the calendar that overlaps with the Pacific hurricane season, a separate planning consideration covered in full on hurricane season on Maui.

During the wetter season, roughly November through April, rain becomes more frequent, particularly on the windward side and in the Upcountry. Showers on the leeward coasts are usually shorter and more scattered, often followed by clear skies within the same day. This is also the season when humpback whales are typically present in the waters off Maui, which is its own topic, addressed on whale season timing.

Because both of these adjacent topics get their own dedicated pages, this guide intentionally stays focused on the general shape of the island’s weather rather than folding storm season or whale season into a single mixed narrative. Treating them separately keeps each subject clear rather than blurring a climate overview with a wildlife calendar or a storm-safety briefing.

A rough shape of the year

The table below sketches the general tendencies described above without assigning specific temperatures or rainfall figures, since those numbers vary year to year and are easy to overstate as a promise.

Period	General pattern	Notes
Roughly May–October	Drier season	Leeward coasts (Kihei, Lahaina, Kaanapali) see their driest stretch of the year. Coincides with Pacific hurricane season.
Roughly November–April	Wetter season	Rain more frequent, especially windward (Hana, Hookipa) and Upcountry. Leeward showers tend to be short and scattered. Overlaps with the period humpback whales are typically present.
Year-round	Haleakala summit	Runs its own colder, windier climate regardless of season; does not track coastal conditions.
Year-round	Windward vs. leeward split	Windward side (Hana Highway, Paia, Hookipa) stays greener and rainier; leeward side (west and south coasts) stays comparatively dry.

Hawaii does not observe daylight saving time

One planning detail that surprises visitors and has nothing to do with rain or sun: Hawaii does not participate in daylight saving time. The islands stay on Hawaii-Aleutian Standard Time (HST, UTC-10) throughout the entire year, without shifting clocks forward or back.

This matters most for anyone coordinating flight times, tour pickups, or calls home across a trip that spans a daylight-saving transition on the mainland. A traveler from a state that observes daylight saving time will find the time difference between Maui and home changes depending on the time of year, even though Maui’s own clock never moves. It is worth double-checking the current time difference close to departure rather than assuming it matches what it was on a previous trip.

Choosing activities around general seasonal patterns

Rather than reading month-by-month numbers into this guide, it is more useful to think about which coast and which elevation a planned activity sits on. A trip built mostly around the leeward beaches of Kaanapali or Wailea will run into fewer weather interruptions than a trip centered on the greener, wetter windward side.

For travelers weighing a sunset outing, an evening sail along the leeward coast benefits from that side’s steadier, drier pattern most of the year. Morning activities on the water, such as a beginner surf lesson in a sheltered bay, also tend to work with the leeward coast’s calmer conditions before afternoon wind picks up.

Travelers curious about the windward side’s wetter, greener character can get a feel for it on a guided day tour that covers the island’s contrasting coastlines without having to drive and navigate the route independently. And for anyone visiting during the wetter season specifically for the marine life that season brings, an outing focused on spotting humpback whales pairs naturally with that time of year, though the details of the whale season itself are covered on its own dedicated page.

None of this is a substitute for checking a short-range forecast in the days before a trip. General seasonal patterns are useful for choosing a travel window months in advance; they are not a substitute for the forecast a visitor should check once travel dates are close and specific activities are being scheduled.

Weather by destination, at a glance

Since the two-season pattern plays out differently coast by coast, it can help to think in terms of specific places rather than the island as a whole. The west coast around Lahaina and Kaanapali sits in the leeward rain shadow and stays comparatively dry in both seasons, which is part of why sunset sails and beach days cluster there. The south shore, covering Kihei and the resorts of Wailea and Makena, follows a similar dry pattern, with the calmest water usually in the morning before the afternoon wind builds. The isthmus around Kahului, where the airport sits, occupies the middle ground described above and does not fit neatly into either the wet or dry description.

Two areas run against that general dryness. Hana and the windward coast along the Hana Highway see rain more often across the year, which is exactly what keeps that drive green and its waterfalls flowing. And the summit of Haleakala runs on its own cold, wind-driven climate regardless of the season down at the coast. Offshore, the waters around Molokini are more a function of wind and swell than of season, which is why morning boat departures are the norm rather than an afternoon trip.

Packing and logistics that follow from the season

The two-season pattern has practical consequences beyond picking a travel month. A general Maui packing list should account for both a warm, humid coast and a summit that can be near freezing at dawn; the specifics of dressing for that summit cold are covered separately on what to wear at the Haleakala summit. Travelers driving themselves along the windward side should also plan around wetter pavement and occasional showers, a topic addressed in more detail on Road to Hana driving tips; anyone still deciding whether to drive at all can start with do you need a rental car on Maui.

Travelers still narrowing down a travel window, rather than reacting to a season already chosen, may find it useful to start from the broader question of the best time to visit Maui, which weighs crowds and pricing alongside the climate patterns described here, or from how many days you need on Maui to see how trip length interacts with a chosen season.

What this guide deliberately leaves out

This page is meant to describe the general shape of Maui’s climate, not to double as a hurricane briefing or a whale-watching calendar. Three related topics are covered elsewhere on purpose, so that each subject gets a clear, undiluted treatment rather than a partial mention here:

• Storm season timing and safety context: hurricane season on Maui
• When humpback whales are typically present: whale season timing
• Matching a specific month to snorkeling conditions: best month for snorkeling

Readers planning around any of those three topics specifically should head to the dedicated page rather than trying to piece together an answer from a general climate overview.

Weather by Month: Frequently Asked Questions

Does Maui have four seasons like the mainland US?

No. Maui sits in the tropics and runs on two broad seasons: a drier season from roughly May through October, and a wetter season from roughly November through April. Neither season is extreme, and both can produce sunny days and passing showers.

Which part of Maui stays driest?

The leeward coasts, meaning the west (Lahaina, Kaanapali) and the south (Kihei, Wailea, Makena), sit in the rain shadow of the island’s mountains and stay comparatively dry across most of the year.

Which part of Maui gets the most rain?

The windward side, facing the trade winds, sees more frequent rain year-round. That includes Paia, Hookipa, and the stretch of coast along the Hana Highway toward Hana and Kipahulu.

Is the Haleakala summit warmer or cooler than the coast?

Cooler, at every time of year. The summit sits at 3,055 meters, and conditions there do not track with conditions at sea level. Visitors headed up for sunrise or sunset should plan for cold, wind, and a different climate entirely from the beach they left that morning.

Does Hawaii change the clocks for daylight saving time?

No. Hawaii does not observe daylight saving time and stays on Hawaii-Aleutian Standard Time (HST, UTC-10) all year. Travelers coming from a state that does change clocks should double-check the time difference depending on the time of year at home.

Is there a best season to visit Maui for weather alone?

There is no single correct answer, since the two seasons differ more in rain frequency than in a dramatic swing in comfort. Many travelers find the shoulder months around May, September, and October offer an easy balance, though this guide focuses on general patterns rather than ranking one month above another.

Should I plan around hurricane season or whale season when choosing a month?

Those are separate considerations from general weather and are covered on their own pages. See hurricane season on Maui for storm season timing and whale season timing for when humpback whales are typically present.

Does the season affect which activities make sense?

Broad seasonal patterns can shape a trip, but matching specific activities like snorkeling to a specific month is its own topic, covered separately. See best month for snorkeling for that angle.