World Resorts USA Kailua Kona Weather

Kailua Kona Sea Temperature in September

Average sea water temperature in September:
+81.3°F
Minimum sea water temperature in September: 85.3°F
Maximum sea water temperature in September: 78.1°F

Daily 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.

Monthly sea water temperature in Kailua Kona, °F

Which USA resorts have warmest sea in September?

Place name September 2025 September 2024
Key West 86.9°F 87.4°F
Fort Lauderdale 86.4°F 86.4°F
Miami Beach 86.1°F 86.3°F
Naples 86.1°F 87.2°F
Corpus Christi 85.8°F 84.7°F
Miami 85.8°F 86.0°F
Houston 84.9°F 83.4°F
Siesta Key 84.9°F 86.8°F
Sarasota 84.8°F 86.7°F
Cocoa Beach 84.6°F 85.2°F
Tampa 84.3°F 86.0°F
New Orleans 84.3°F 82.9°F
St. Petersburg 84.1°F 86.1°F
Clearwater Beach 84.0°F 86.2°F
Panama City Beach 83.4°F 84.8°F
Destin 83.1°F 84.5°F
Orlando 82.8°F 83.6°F
Daytona Beach 82.7°F 83.2°F
Kauai 81.5°F 79.4°F
Jacksonville 81.1°F 82.0°F

Best time for vacation in Kailua Kona

Sunniest months:
January 22 days
December 20 days
February 19 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 77.2 °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
+79°F
NE 4 mph
Feels like: +81°F
Precip.: 5%
Places in USA:
Name
°F
+75°F
+77°F
+93°F
+73°F
+91°F
+90°F
+73°F
+93°F
+90°F
+70°F
+79°F
+93°F
+95°F
+93°F
+90°F
24 Hours Forecast
Kailua Kona
Local time: 09:44
June 29, monday
1200
79°F
E
6 mph
1500
79°F
SE
5 mph
1800
79°F
SE
3 mph
2100
77°F
NE
1 mph
June 30, tuesday
0000
77°F
SE
0 mph
0300
77°F
E
1 mph
0600
77°F
NE
2 mph
0900
79°F
NE
3 mph
Units of measurement: °C / °F