Lahaina weather in May
May in Lahaina: hot, dry, with clean air — one of the best months to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#1 of 12 months in Lahaina · #32 of 1413 destinations to visit in May · comfort 94/100 (tier S)
- Days
- 29°C
- Nights
- 21°C
- Wet days
- 5
- Sun
- 12 h
- Humidity
- 69%
- Daylight
- 13 h

Traveller notes on Lahaina in May
Lahaina's forum calls May a lovely time — neither too hot nor too cold, partly cloudy with scattered showers usually in the evening or early morning that leave plenty of beach time during the day. Regulars flag it as noticeably less crowded than summer, and note anyone heading up to Haleakalā for sunrise needs warm clothes regardless of how pleasant it is down on the coast.
Other months in Lahaina
Regulars are specific Lahaina itself is often singled out as the one spot on the island that essentially doesn't rain, genuinely hotter than most other areas, air conditioning the practical answer for anyone finding the heat too much. Our row backs that hot, genuinely dry read, 31.1C reading as a scorching 33C, over 22.5C nights feeling 24C, with rain minimal at 9.4mm across 3.1 days and humidity at 68 percent. Regulars are consistent this falls within hurricane season, the actual risk remote most years though a storm passing nearby can bring a few days of real wind and rain even on an otherwise dry-leaning month. Overnight lows rarely drop below 70F regardless. The sea sits at a bath-warm 27.2C. The record: 11.2 hours of sun, a 26.8 kph wind and AQI 25.
June on Maui's west side is the month people describe as simply easy: 80s F, crowds not yet at their summer worst, and evenings cool enough for a light layer. On wind the forum and our row read differently and both are right - 27.9 kph here, while visitors staying on this coast report noticing no particular wind, because Lahaina sits in the island's lee. What arrives with a windless spell is vog, the volcanic haze that drifts up from the Big Island when the trades drop and the air turns hot and close. The other June fact is an absence: the humpbacks have gone, their season running mid-December to mid-April. The record: 30.4C days that feel like 32C, 21.7C nights, 2.6 precipitation days carrying 4mm, 12.5 hours of sun and a 26.5C sea.
Forum posters describe November daytime highs commonly around 85F, with November marking the start of Hawaii's rainy season - though Lahaina itself, being on the leeward (drier) side of West Maui, sees notably less rain than wetter windward spots like nearby Napili. Posters describe the total monthly rainfall for Lahaina as modest, with some visitors reporting lovely, less-humid conditions and smaller crowds than the busier months, while others hit a stretch of genuinely heavy rain - real year-to-year variation posters are candid about. Wind tends to pick up somewhat compared to earlier fall months, though posters still call it warm and pleasant overall, with beaches generally in good shape and fewer people around than peak season.
Add your own note from Lahaina's card on the map.
Lahaina climate normals — May
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Lahaina in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Busyone of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Lahaina's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherLahaina's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Lahaina in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Rule
Rebuilding access rules
1 Jan – 31 DecClosuresFront Street reopened to traffic on 1 August 2026, but Market Street, Papelekane Street and Mokuhinia Place remain closed for harbor dredging and rebuilding. The county asks visitors to come for the businesses that have reopened, not to look at what burned. Source ↗
- Nature
Humpback whale season
15 Dec – 15 MayThe Auau Channel between Maui, Lanai and Molokai holds the densest breeding population in Hawaii, and the federal sanctuary season runs mid-December to mid-May. February is peak, and the seawall is enough.
Nearby, and something's on
Within 300 km of Lahaina — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Lahaina?
Lahaina in May — FAQ
- Is May a good time to visit Lahaina?
- May in Lahaina: hot, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Lahaina on SeasonMap's comfort score (94/100).
- What is the weather like in Lahaina in May?
- In May, Lahaina averages a daily high of 29°C and a low of 20.6°C, with about 13.6 mm of rain over roughly 5.2 rainy days.
- What is the air quality in Lahaina in May?
- Lahaina has a mean US Air Quality Index of about 33 in May.
Within 300 km: Maui's Upcountry jacaranda around 1 May – 15 Jun, and Honolulu's Lei Day on 1 May.