World Resorts USA Lanai Weather

Lanai sea water temperature

Current sea water temperature:
+79.9°F
Minimum sea water temperature in December: 80.2°F
Maximum sea water temperature in December: 76.8°F
Average sea water temperature in December: 78.5°F

Sea water temperature for the last 10 days:

December 4 79.9°F November 29 79.9°F
December 3 80.1°F November 28 79.7°F
December 2 80.2°F November 27 79.5°F
December 1 80.1°F November 26 79.2°F
November 30 80.2°F November 25 79.3°F

When is the warmest sea in Lanai?

Based on the data about daily sea water temperature for the last three years the warmest sea in Lanai was noticed in October, September and August.

Monthly Sea Temperatures in Lanai, °F

Sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 81.0°F. The highest and lowest sea temperatures during the month were 82.4°F and 79.5°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 81.0°F. The highest and lowest sea temperatures during the month were 81.9°F and 80.2°F.

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 81.1°F. The highest and lowest sea temperatures during the month were 81.7°F and 80.4°F.

Best time for vacation in Lanai

Sunniest months:
August 21 days
July 21 days
December 18 days
Warmest months:
September 79.5 °F
August 79.0 °F
October 79.0 °F
Warmest sea temp:
October 80.7 °F
September 80.6 °F
August 80.2 °F
Coldest months:
February 74.7 °F
April 74.9 °F
March 75.0 °F
Rainiest months:
December 1 day
February 1 day
January 1 day
Windiest months:
February 9.0 mph
January 8.4 mph
March 8.3 mph

Lanai on a weather map

Lanai
+73°F
S 7 mph
Feels like: +77°F
Precip.: 70%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+45°F
+55°F
+70°F
+77°F
+70°F
+23°F
+57°F
+48°F
+63°F
+63°F
+46°F
+5°F
24 Hours Forecast
Lanai
Local time: 20:13
December 04, thursday
2100
73°F
S
7 mph
December 05, friday
0000
79°F
NW
8 mph
0300
77°F
W
5 mph
0600
79°F
W
4 mph
0900
79°F
S
7 mph
1200
81°F
SW
4 mph
1500
75°F
NW
5 mph
1800
73°F
S
6 mph
Units of measurement: °C / °F