World Resorts USA Santa Catalina Island Weather

Santa Catalina Island Sea Temperature in May

Average sea water temperature in May:
+63.0°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 64.0°F. The highest and lowest sea temperatures during the month were 65.3°F and 62.2°F.

Monthly sea water temperature in Santa Catalina Island, °F

Which USA resorts have warmest sea in May?

Place name May 2026 May 2025
Key West 84.3°F 83.5°F
Miami 83.3°F 82.6°F
Naples 82.9°F 83.5°F
Miami Beach 82.7°F 82.4°F
St. Petersburg 82.0°F 82.6°F
Tampa 81.9°F 82.7°F
West Palm Beach 81.7°F 81.1°F
Fort Lauderdale 81.7°F 81.1°F
Clearwater Beach 81.5°F 82.6°F
Sarasota 81.5°F 82.7°F
Siesta Key 81.3°F 82.5°F
Corpus Christi 79.5°F 80.9°F
Kailua Kona 79.4°F 79.1°F
South Padre Island 79.1°F 80.0°F
Orlando 78.4°F 77.2°F
Houston 78.4°F 79.5°F
Daytona Beach 78.1°F 76.0°F
New Orleans 78.0°F 79.5°F
Honolulu 78.0°F 78.1°F
Hawaii 77.9°F 78.0°F

Best time for vacation in Santa Catalina Island

Sunniest months:
August 24 days
July 23 days
September 21 days
Warmest months:
August 75.1 °F
September 74.6 °F
July 73.3 °F
Warmest sea temp:
August 70.5 °F
September 70.4 °F
July 68.6 °F
Coldest months:
December 61.9 °F
January 62.3 °F
March 62.5 °F
Rainiest months:
January 2 days
December 2 days
February 1 day
Windiest months:
March 8.5 mph
February 7.8 mph
April 7.7 mph

Santa Catalina Island on a weather map

Santa Catalina Island
+73°F
NW 4 mph
Feels like: +77°F
Precip.: 6%
Places in USA:
Name
°F
+84°F
+75°F
+100°F
+79°F
+93°F
+84°F
+70°F
+88°F
+86°F
+77°F
+61°F
+77°F
+91°F
+90°F
+73°F
24 Hours Forecast
Santa Catalina Island
Local time: 09:20
July 24, friday
1200
84°F
N
6 mph
1500
86°F
NE
4 mph
1800
70°F
E
2 mph
2100
68°F
E
2 mph
July 25, saturday
0000
68°F
NE
3 mph
0300
66°F
NE
1 mph
0600
66°F
E
2 mph
0900
68°F
N
1 mph
Units of measurement: °C / °F