Sun, sea & sand

Lahaina, Maui weather in May

Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.

100

Holiday weather in May

Excellent

Best time to visit: January – December

What is the weather like in Lahaina, Maui in May?

In May, Lahaina, Maui is warm: daytime highs average 27 °C, and even at night it stays warm at around 23 °C. The sea averages 25.1 °C – pleasant for swimming. With around 9 hours of sunshine a day, there is plenty of sun. It hardly ever rains. The air is often humid and muggy. All in all, May is an excellent month for a holiday in Lahaina, Maui.

May compared

How the weather changes from April to June. Tap a month to open it.

AprilAprMayMayJuneJun
Score98100100
Day26°27°28°
Night22°23°24°
Sea25°25°26°
Sun9 h9 h10 h
Rain days220

More details for May

Daylight
13 h 7 min05:49 – 18:56
UV index
12 · extremeclear sky, noon (estimate)All months
Muggy days
15 daysdew point 18 °C or moreAll months
Wind
27 km/haverage daily peakAll months
Cloud cover
34 %on averageAll months
Hot days
0 days30 °C or moreAll months
Time zone
UTC−10Pacific/Honolulu

How the score comes together

  • Temperatureweight 35 %100 %
  • Seaweight 25 %100 %
  • Sunshineweight 20 %100 %
  • Few rainy daysweight 20 %100 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in May

  • Swimwear
  • Sunscreen
  • Sunglasses & sun hat
  • Light, breathable clothes
  • Insect repellent

Lahaina, Maui in May: quick answers

Is Lahaina, Maui hot in May?

Warm rather than hot: in May, daytime highs in Lahaina, Maui average 27 °C and nights cool to about 23 °C.

Can you swim in Lahaina, Maui in May?

Yes. In May the sea averages 25.1 °C – pleasant for swimming.

Does it rain much in Lahaina, Maui in May?

It hardly ever rains.

Lahaina, Maui month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences