World Resorts USA Kailua Kona Weather

Kailua Kona sea water temperature

Current sea water temperature:
+81.7°F
Minimum sea water temperature in October: 83.5°F
Maximum sea water temperature in October: 78.3°F
Average sea water temperature in October: 81.1°F

Sea water temperature for the last 10 days:

October 14 81.7°F October 9 82.4°F
October 13 81.9°F October 8 82.0°F
October 12 81.9°F October 7 82.0°F
October 11 82.0°F October 6 81.9°F
October 10 82.2°F October 5 82.2°F

When is the warmest sea in Kailua Kona?

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

Monthly Sea Temperatures in Kailua Kona, °F

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 82.4°F. The highest and lowest sea temperatures during the month were 83.3°F and 81.7°F.

Sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 80.9°F. The highest and lowest sea temperatures during the month were 81.3°F and 80.4°F.

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 81.8°F. The highest and lowest sea temperatures during the month were 82.8°F and 81.0°F.

Best time for vacation in Kailua Kona

Sunniest months:
January 22 days
December 20 days
February 19 days
Warmest months:
September 82.2 °F
October 82.0 °F
July 82.0 °F
Warmest sea temp:
September 81.4 °F
October 81.1 °F
August 81.0 °F
Coldest months:
January 76.9 °F
February 77.2 °F
March 77.9 °F
Rainiest months:
September 2 days
July 2 days
August 2 days
Windiest months:
May 6.8 mph
April 6.6 mph
June 6.4 mph

Kailua Kona on a weather map

Kailua Kona
+77°F
E 3 mph
Feels like: +81°F
Precip.: 42%
Places in USA:
Name
°F
+68°F
+86°F
+77°F
+68°F
+77°F
+86°F
+73°F
+86°F
+82°F
+73°F
+64°F
+77°F
+88°F
+88°F
+63°F
24 Hours Forecast
Kailua Kona
Local time: 08:56
October 14, wednesday
0900
77°F
E
3 mph
1200
81°F
NE
7 mph
1500
79°F
NE
7 mph
1800
77°F
NE
7 mph
2100
77°F
N
3 mph
October 15, thursday
0000
77°F
E
2 mph
0300
77°F
S
3 mph
0600
77°F
SW
6 mph
Units of measurement: °C / °F