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
Key Largo 86.6°F 87.1°F
Fort Lauderdale 86.4°F 86.4°F
Everglades 86.2°F 87.0°F
West Palm Beach 86.2°F 86.4°F
Miami Beach 86.1°F 86.3°F
Naples 86.1°F 87.2°F
Marco Island 86.0°F 87.2°F
Corpus Christi 85.8°F 84.7°F
Miami 85.8°F 86.0°F
Galveston 85.5°F 83.7°F
Cape Coral 85.2°F 86.5°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

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 7.0 mph
April 6.8 mph
June 6.5 mph

Kailua Kona on a weather map

Kailua Kona
+70°F
S 9 mph
Feels like: +70°F
Precip.: 0%
Places in USA:
Name
°F
+55°F
+72°F
+72°F
+73°F
+64°F
+81°F
+75°F
+64°F
+48°F
+66°F
+52°F
+84°F
+86°F
+57°F
+43°F
24 Hours Forecast
Kailua Kona
Local time: 04:41
April 06, monday
0600
70°F
S
9 mph
0900
73°F
SE
4 mph
1200
75°F
NE
7 mph
1500
77°F
NE
8 mph
1800
73°F
E
5 mph
2100
73°F
SE
6 mph
April 07, tuesday
0000
73°F
SE
3 mph
0300
73°F
SE
6 mph
Units of measurement: °C / °F