Average sea water temperature in May:
+77.4°F
| Minimum sea water temperature in May: | 79.0°F |
| Maximum sea water temperature in May: | 75.0°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 78.1°F. The highest and lowest sea temperatures during the month were 78.6°F and 77.4°F.
Monthly sea water temperature in Hilo, °F
Which USA resorts have warmest sea in May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Everglades | 84.9°F | 84.5°F |
| Key West | 84.3°F | 83.5°F |
| Key Largo | 84.2°F | 83.5°F |
| Miami | 83.2°F | 82.6°F |
| Hialeah | 82.7°F | 82.3°F |
| Cape Coral | 82.6°F | 83.4°F |
| Marco Island | 82.4°F | 83.5°F |
| Miami Beach | 82.3°F | 82.4°F |
| Naples | 82.2°F | 83.5°F |
| Fort Lauderdale | 81.1°F | 81.1°F |
| West Palm Beach | 81.1°F | 81.1°F |
| Tampa | 80.6°F | 82.7°F |
| St. Petersburg | 80.5°F | 82.6°F |
| Sarasota | 80.3°F | 82.7°F |
| Siesta Key | 80.1°F | 82.5°F |
| Clearwater Beach | 80.0°F | 82.6°F |
| Cocoa Beach | 79.2°F | 79.4°F |
| Corpus Christi | 78.7°F | 80.9°F |
| Honolulu | 78.1°F | 78.1°F |
| Hilo | 78.1°F | 77.7°F |
Best time for vacation in Hilo
Hilo on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Hilo
Local time: 04:07
May 19, tuesday
0600
72°F
W
2 mph
2 mph
0900
73°F
W
8 mph
8 mph
1200
75°F
SW
7 mph
7 mph
1500
75°F
SW
10 mph
10 mph
1800
73°F
SW
9 mph
9 mph
2100
73°F
SW
6 mph
6 mph
May 20, wednesday
0000
72°F
SW
4 mph
4 mph
0300
72°F
SW
2 mph
2 mph
