Measurements:
°C
°F
Lanai
76°F
S 7 mph
Feels like: 80°F
Precip: 70%
World Resorts USA Lanai Weather May Weather in Lanai

Lanai Weather: May

Average Day Temperature: 79.1°F
Average Night Temperature: 76.6°F
Sea Water Temperature: 80.8°F
Number of Sunny Days: 12 days
Sunshine Hours: 12.9 - 13.3 hours
Number of Rainy Days: 0 days
Precipitation Totals: 0.2 in

Air Temperature in May, °F

Select Year: 2025 2024 2023

The highest day temperature in May 2025 was 82°F. The lowest night temperature was 76°F. The average values for day and night temperatures during May were 80.3°F и 79.5°F respectivly.

Lanai Water Sea Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Lanai was 81.8°F. The maximum and minimum values were 81.2°F and 82.8°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in May are cloudy but you can also expect sunny or gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Lanai is 0.2 in.

Wind Speed in May, mph

The average wind speed in May is 7.1 mph. It makes May one of the most windless months of the year for Lanai.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Lanai in May is 8.4 hours.

Best Time to Visit Lanai
The most sunny months:
August 21 days
July 21 days
December 18 days
The most warm months:
September 82.8 °F
August 82.2 °F
October 82.2 °F
Warmest sea temperature:
October 84.1 °F
September 84.0 °F
August 83.6 °F
The most cold months:
February 77.4 °F
April 77.7 °F
March 77.8 °F
The most rainy months:
December 1 day
February 1 day
January 1 day
The most windy months:
February 9 mph
January 8 mph
March 8 mph

Lanai on the Weather Map

USA Resorts:
NAME
Chicago 0
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +40
Los Angeles +52
Maui +72
Miami +72
Miami Beach +80
New York +18
San Diego +54
San Francisco +46
Sarasota +62
Tampa +62
Washington +28
24 Hours Weather Forecast
Lanai
Local time: 20:46
04 dec, thursday
2100 76°F
S
7 mph
05 dec, friday
0000 82°F
NW
8 mph
0300 80°F
W
5 mph
0600 82°F
W
4 mph
0900 82°F
S
7 mph
1200 84°F
SW
4 mph
1500 78°F
NW
5 mph
1800 76°F
S
6 mph