Average sea water temperature in May:
+62.9°F
| Minimum sea water temperature in May: | 68.5°F |
| Maximum sea water temperature in May: | 60.1°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 63.5°F. The highest and lowest sea temperatures during the month were 64.8°F and 62.2°F.
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| Santa Catalina Island |
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| Santa Catalina Island |
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| Santa Catalina Island |
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| Santa Catalina Island |
Monthly sea water temperature in Santa Catalina Island, °F
Which USA resorts have warmest sea in May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Everglades | 84.8°F | 84.5°F |
| Key Largo | 84.2°F | 83.5°F |
| Key West | 84.1°F | 83.5°F |
| Miami | 83.0°F | 82.6°F |
| Cape Coral | 82.6°F | 83.4°F |
| Hialeah | 82.5°F | 82.3°F |
| Marco Island | 82.2°F | 83.5°F |
| Miami Beach | 82.2°F | 82.4°F |
| Naples | 82.0°F | 83.5°F |
| Fort Lauderdale | 81.0°F | 81.1°F |
| West Palm Beach | 80.9°F | 81.1°F |
| Tampa | 80.5°F | 82.7°F |
| St. Petersburg | 80.4°F | 82.6°F |
| Sarasota | 80.1°F | 82.7°F |
| Siesta Key | 79.9°F | 82.5°F |
| Clearwater Beach | 79.9°F | 82.6°F |
| Cocoa Beach | 78.9°F | 79.4°F |
| Corpus Christi | 78.5°F | 80.9°F |
| Hilo | 78.1°F | 77.7°F |
| Honolulu | 78.0°F | 78.1°F |
Best time for vacation in Santa Catalina Island
Santa Catalina Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Santa Catalina Island
Local time: 12:46
May 17, sunday
1500
61°F
E
8 mph
8 mph
1800
63°F
E
12 mph
12 mph
2100
55°F
NE
9 mph
9 mph
May 18, monday
0000
57°F
NW
9 mph
9 mph
0300
57°F
NW
16 mph
16 mph
0600
57°F
NW
14 mph
14 mph
0900
59°F
NW
14 mph
14 mph
1200
59°F
NW
10 mph
10 mph
