World Resorts USA Kailua Kona Weather

Kailua Kona sea water temperature

Current sea water temperature:
+77.0°F
Minimum sea water temperature in February: 78.4°F
Maximum sea water temperature in February: 75.6°F
Average sea water temperature in February: 77.0°F

Sea water temperature for the last 10 days:

February 24 77.0°F February 19 77.7°F
February 23 77.0°F February 18 77.7°F
February 22 76.8°F February 17 77.7°F
February 21 76.8°F February 16 77.5°F
February 20 77.2°F February 15 77.9°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:
2025
2024
2023

The average sea water temperature in September of 2025 was 80.9°F. The highest and lowest sea temperatures during the month were 81.3°F and 80.1°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:
2025
2024
2023

The average sea water temperature in August of 2025 was 80.9°F. The highest and lowest sea temperatures during the month were 81.1°F and 80.6°F.

Best time for vacation in Kailua Kona

Sunniest months:
January 22 days
February 20 days
December 20 days
Warmest months:
September 82.4 °F
August 82.1 °F
July 82.1 °F
Warmest sea temp:
September 81.3 °F
October 81.1 °F
August 80.9 °F
Coldest months:
January 76.9 °F
February 77.4 °F
March 78.0 °F
Rainiest months:
September 2 days
July 2 days
August 2 days
Windiest months:
May 7.0 mph
April 6.8 mph
June 6.5 mph

Kailua Kona on a weather map

Kailua Kona
+75°F
SE 6 mph
Feels like: +77°F
Precip.: 84%
Places in USA:
Name
°F
+37°F
+72°F
+72°F
+75°F
+73°F
+68°F
+63°F
+66°F
+30°F
+70°F
+55°F
+57°F
+63°F
+70°F
+41°F
24 Hours Forecast
Kailua Kona
Local time: 12:28
February 24, tuesday
1500
73°F
SE
5 mph
1800
72°F
SE
2 mph
2100
72°F
W
1 mph
February 25, wednesday
0000
70°F
W
3 mph
0300
70°F
SW
4 mph
0600
66°F
SW
2 mph
0900
72°F
N
1 mph
1200
73°F
E
6 mph
Units of measurement: °C / °F