Average sea water temperature in September:
+80.4°F
| Minimum sea water temperature in September: | 83.8°F |
| Maximum sea water temperature in September: | 77.5°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 81.2°F. The highest and lowest sea temperatures during the month were 81.7°F and 80.6°F.
Monthly sea water temperature in Hilo, °F
Which USA resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Key West | 87.9°F | 86.9°F |
| Key Largo | 87.4°F | 86.6°F |
| Naples | 87.3°F | 86.1°F |
| Siesta Key | 87.2°F | 84.9°F |
| Houston | 87.1°F | 84.9°F |
| Sarasota | 87.1°F | 84.8°F |
| Corpus Christi | 86.9°F | 85.8°F |
| Cape Coral | 86.7°F | 85.2°F |
| West Palm Beach | 86.6°F | 86.2°F |
| Fort Lauderdale | 86.6°F | 86.4°F |
| New Orleans | 86.6°F | 84.3°F |
| Tampa | 86.4°F | 84.3°F |
| Clearwater Beach | 86.4°F | 84.0°F |
| Orange Beach | 86.2°F | 84.0°F |
| Pensacola Beach | 86.2°F | 83.9°F |
| Panama City Beach | 86.0°F | 83.4°F |
| Pensacola | 86.0°F | 83.9°F |
| Fort Walton Beach | 86.0°F | 83.3°F |
| Miami Beach | 85.9°F | 86.1°F |
| Destin | 85.9°F | 83.1°F |
Best time for vacation in Hilo
Hilo on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Hilo
Local time: 13:46
September 27, sunday
1500
77°F
W
9 mph
9 mph
1800
77°F
W
6 mph
6 mph
2100
77°F
N
4 mph
4 mph
September 28, monday
0000
77°F
NW
6 mph
6 mph
0300
73°F
NE
9 mph
9 mph
0600
75°F
NE
9 mph
9 mph
0900
77°F
NW
8 mph
8 mph
1200
79°F
NW
11 mph
11 mph
