United States Maui Weather in May — Climate Guide
May in Maui is very-high
May is very-high for Maui.
May is Korean Golden Week peak — the canonical Korean honeymoon month for Hawaii. Hotels surge 30-50% for the late-April-into-early-May window. Korean Air, Asiana, Hawaiian Airlines, United all add capacity Seoul-Honolulu (ICN-HNL ~9h direct) for the connection to OGG.
Memorial Day weekend (the last Monday in May) kicks off the American summer travel season. Hotels add another 30-50% surge for the holiday weekend. After Memorial Day, hotel pricing settles into the summer pattern (high but stable).
Travel score
Maui May Weather Stats
Avg High
29°C
Avg Low
20°C
Rainy Days
5
25mm total
Sunshine
10h
Daily avg
Humidity
64%
moderate
UV Index
11
Extreme
Wind
14 km/h
Gusts 30
Sea Temp
26°C
swimming
Crowds
Very busy
At attractions
May Sunrise & Sunset
Air Quality
PM2.5
5 μg/m³
PM10
13 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
30°C
Nighttime
21°C
Humidity and wind affect how the actual temperature feels.
Wind
14 km/h
Max gust 30 km/h
Activities Recommended for May
May Travel Pros & Cons
Pros
- Ideal weather 20-29°C
- Korean Golden Week cultural overlap
- Lei Day + Maui Onion Festival free events
Cons
- Korean Golden Week peak (early May)
- Memorial Day weekend surge
- UV 11 burn risk 15-20 min
May Events & Festivals
- Korean Golden Week (late April - early May)
- Memorial Day weekend (last Monday May)
- Lei Day (May 1, free leis statewide)
- Maui Onion Festival (Whalers Village, early May)
Maui in May — Full Picture
May is Korean Golden Week peak — the canonical Korean honeymoon month for Hawaii. Hotels surge 30-50% for the late-April-into-early-May window. Korean Air, Asiana, Hawaiian Airlines, United all add capacity Seoul-Honolulu (ICN-HNL ~9h direct) for the connection to OGG.
Memorial Day weekend (the last Monday in May) kicks off the American summer travel season. Hotels add another 30-50% surge for the holiday weekend. After Memorial Day, hotel pricing settles into the summer pattern (high but stable).
Lei Day (May 1) is a state-wide Hawaiian celebration with free leis given out at Maui's Kahului Civic Center + free hula performances at Wailea Village. Maui Onion Festival at Whalers Village (early May) is a free food festival celebrating Kula sweet onions.
Weather is ideal — 20-29°C / 68-84°F, dry season in full swing, minimal rain (5 rainy days). Sea temperature 26°C makes Molokini Crater snorkeling perfect.
The smart May move: target the last 2 weeks of May (post-Korean Golden Week, post-Memorial Day) for the brief lower-demand window before US summer school break crowds arrive in June.
What to Wear & What to Pack
Tropical light + UV protection essential. Sea 26°C / 79°F ideal swimming. UV 11 (extreme — burn risk 15-20 min). Fleece for Haleakala still mandatory.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current28°C
19.3°C
5.7/mo
Summer (Jun·Jul·Aug)
30.7°C
21.7°C
3.3/mo
Autumn (Sep·Oct·Nov)
30°C
21°C
6/mo
Winter (Dec·Jan·Feb)
27°C
18.3°C
10/mo
Maui Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 27° | 18° | 11d·90mm | 7h | 68% | 8 | Very busy | Peak | |
| February (Best) | 27° | 18° | 9d·70mm | 8h | 67% | 9 | Very busy | Peak |
| March (Best) | 27° | 19° | 7d·55mm | 8h | 66% | 9 | Busy | Shoulder |
| April (Best) | 28° | 19° | 5d·30mm | 9h | 64% | 10 | Busy | Shoulder |
| May (Best) | 29° | 20° | 5d·25mm | 10h | 64% | 11 | Very busy | Peak |
| June (Best) | 30° | 21° | 3d·10mm | 11h | 62% | 11 | Very busy | Peak |
| July (Best) | 31° | 22° | 3d·8mm | 11h | 64% | 12 | Very busy | Peak |
| August (Best) | 31° | 22° | 4d·15mm | 11h | 65% | 12 | Very busy | Peak |
| September (Best) | 31° | 22° | 4d·20mm | 10h | 65% | 11 | Busy | Shoulder |
| October (Best) | 30° | 21° | 6d·40mm | 9h | 67% | 9 | Moderate | Shoulder |
| November (Best) | 29° | 20° | 8d·65mm | 8h | 69% | 8 | Moderate | Shoulder |
| 27° | 19° | 10d·90mm | 7h | 70% | 7 | Very busy | Peak |
View Other Months
Maui May Hotel Picks
Frequently Asked Questions
Is May a good time to visit Maui?
Maui in May is very-high. Tourist crowds are very busy and flight/hotel prices are peak.
What's the average temperature in Maui in May?
Maui May averages a high of 29°C and a low of 20°C.
Does it rain much in Maui in May?
Maui May averages 25mm of rainfall over about 5 rainy days.
What should I wear in Maui in May?
Tropical light + UV protection essential. Sea 26°C / 79°F ideal swimming. UV 11 (extreme — burn risk 15-20 min). Fleece for Haleakala still mandatory.
What time are sunrise and sunset in Maui in May?
Maui May sunrise is 05:55 and sunset is 18:55, with 13h 0m of daylight.
What's the air quality like in Maui in May?
Maui May air quality (AQI) averages 23, rated Good. PM2.5 averages 5μg/m³.
What activities are recommended in Maui in May?
In May, Maui is great for Wailea + Ka'anapali Beach (peak), Haleakala sunrise, Road to Hana (dry).
Is May peak season in Maui?
Maui May crowds are very busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Maui
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.