Lanai weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Excellent
Best time to visit: April – November
What is the weather like in Lanai in May?
In May, Lanai is warm: daytime highs average 23 °C, and nights cool down to about 20 °C. The sea averages 25.3 °C – pleasant for swimming. With around 10 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, May is an excellent month for a holiday in Lanai.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 13 h 7 min05:50 – 18:57
- UV index
- 13 · extremeclear sky, noon (estimate)All months
- Muggy days
- 13 daysdew point 18 °C or moreAll months
- Wind
- 24 km/haverage daily peakAll months
- Cloud cover
- 32 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−10Pacific/Honolulu
How the score comes together
- Temperatureweight 35 %68 %
- 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
Lanai in May: quick answers
Is Lanai hot in May?
Warm rather than hot: in May, daytime highs in Lanai average 23 °C and nights cool to about 20 °C.
Can you swim in Lanai in May?
Yes. In May the sea averages 25.3 °C – pleasant for swimming.
Does it rain much in Lanai in May?
It hardly ever rains.
Lanai month by month
The whole year in LanaiAll destinations: USAHawaii weather in MayWhere to go in MaySea temperature in May
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