World Resorts USA Hawaii Weather

Hawaii sea water temperature

Current sea water temperature:
+80.2°F
Minimum sea water temperature in October: 82.6°F
Maximum sea water temperature in October: 78.1°F
Average sea water temperature in October: 80.6°F

Sea water temperature for the last 10 days:

October 28 80.2°F October 23 80.2°F
October 27 80.2°F October 22 80.2°F
October 26 80.4°F October 21 80.2°F
October 25 80.2°F October 20 80.2°F
October 24 80.1°F October 19 80.2°F

When is the warmest sea in Hawaii?

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

Monthly Sea Temperatures in Hawaii, °F

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 81.0°F. The highest and lowest sea temperatures during the month were 81.7°F and 80.4°F.

Sea water temperature in October, °F

Show year:
2026
2025
2024

The average sea water temperature in October of 2026 was 80.5°F. The highest and lowest sea temperatures during the month were 81.0°F and 80.1°F.

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 80.8°F. The highest and lowest sea temperatures during the month were 81.3°F and 80.2°F.

Best time for vacation in Hawaii

Sunniest months:
January 15 days
August 14 days
June 14 days
Warmest months:
August 83.0 °F
September 82.7 °F
July 82.2 °F
Warmest sea temp:
September 80.8 °F
October 80.6 °F
August 80.2 °F
Coldest months:
February 76.0 °F
March 76.2 °F
January 76.5 °F
Rainiest months:
March 3 days
February 3 days
October 2 days
Windiest months:
July 17.1 mph
August 16.0 mph
June 15.6 mph

Hawaii on a weather map

Hawaii
+73°F
S 12 mph
Feels like: +77°F
Precip.: 94%
Places in USA:
Name
°F
+43°F
+54°F
+73°F
+63°F
+68°F
+79°F
+72°F
+52°F
+68°F
+57°F
+66°F
+72°F
+70°F
+72°F
+59°F
24 Hours Forecast
Hawaii
Local time: 00:41
October 28, wednesday
0300
72°F
S
12 mph
0600
73°F
SW
15 mph
0900
75°F
SW
14 mph
1200
75°F
SW
14 mph
1500
75°F
SW
12 mph
1800
75°F
SW
12 mph
2100
77°F
SW
11 mph
October 29, thursday
0000
77°F
SW
11 mph

Best place for vacation:

Units of measurement: °C / °F