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:
2025
2024
2023
The average sea water temperature in September of 2025 was 80.4°F. The highest and lowest sea temperatures during the month were 80.8°F and 80.1°F.
Monthly sea water temperature in Hilo, °F
Which USA resorts have warmest sea in September?
| Place name | September 2025 | September 2024 |
|---|---|---|
| Key West | 86.9°F | 87.4°F |
| Miami Beach | 86.1°F | 86.3°F |
| Naples | 86.1°F | 87.2°F |
| Miami | 85.8°F | 86.0°F |
| Houston | 84.9°F | 83.4°F |
| Sarasota | 84.8°F | 86.7°F |
| Tampa | 84.3°F | 86.0°F |
| New Orleans | 84.3°F | 82.9°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 |
| Princeville | 81.5°F | 79.4°F |
| Kauai | 81.5°F | 79.4°F |
| Jacksonville | 81.1°F | 82.0°F |
| Lanai | 81.0°F | 80.9°F |
| Honolulu | 80.6°F | 81.0°F |
| Hawaii | 80.5°F | 80.8°F |
| Maui | 79.9°F | 79.7°F |
| Oahu | 79.8°F | 80.0°F |
Best time for vacation in Hilo
Hilo on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Hilo
Local time: 05:29
July 05, sunday
0600
72°F
S
6 mph
6 mph
0900
75°F
SW
7 mph
7 mph
1200
77°F
SW
11 mph
11 mph
1500
75°F
SW
11 mph
11 mph
1800
73°F
SW
11 mph
11 mph
2100
72°F
SW
8 mph
8 mph
July 06, monday
0000
72°F
SW
7 mph
7 mph
0300
72°F
SW
8 mph
8 mph
