Measurements:
°C
°F
CURRENT WEATHER
03:40
Lanai
78°F
SW 3 mph
Feels like: 80°F
Precip: 9%
World Resorts USA Lanai Weather

7 Day Weather Forecast

09.15
tue
DAY
80°F
NE 4 mph
precip
16%
NIGHT
78°F
SW 4 mph
precip
8%
09.16
wed
DAY
82°F
NE 2 mph
precip
6%
NIGHT
78°F
SW 11 mph
precip
24%
09.17
thu
DAY
80°F
N 4 mph
precip
23%
NIGHT
78°F
W 4 mph
precip
30%
09.18
fri
DAY
80°F
NE 7 mph
precip
8%
NIGHT
78°F
S 4 mph
precip
21%
09.19
sat
DAY
82°F
E 2 mph
precip
17%
NIGHT
78°F
E 4 mph
precip
22%
09.20
sun
DAY
80°F
N 2 mph
precip
13%
NIGHT
78°F
SW 4 mph
precip
7%
09.21
mon
DAY
80°F
NE 3 mph
precip
6%
NIGHT
78°F
SW 3 mph
precip
7%

Lanai Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Lanai was 27.1°F. The maximum and minimum values were 26.8°F and 27.4°F respectively.

Lanai on the Weather Map

Best Time to Visit Lanai
The most sunny months:
July 20 days
August 19 days
September 17 days
The most warm months:
September 82.8 °F
October 82.2 °F
August 82.1 °F
Warmest sea temperature:
October 84.1 °F
September 84.0 °F
August 83.7 °F
The most cold months:
February 76.8 °F
March 77.3 °F
April 77.4 °F
The most rainy months:
March 1 day
February 1 day
January 1 day
The most windy months:
February 9 mph
March 8 mph
January 8 mph
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