World Resorts USA Santa Catalina Island Weather

Santa Catalina Island Sea Temperature in October

Average sea water temperature in October:
+68.1°F
Minimum sea water temperature in October: 73.4°F
Maximum sea water temperature in October: 62.8°F

Daily sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 68.0°F. The highest and lowest sea temperatures during the month were 70.0°F and 66.2°F.

Monthly sea water temperature in Santa Catalina Island, °F

Which USA resorts have warmest sea in October?

Place name October 2025 October 2024
South Padre Island 84.0°F 82.4°F
Key West 83.8°F 82.9°F
West Palm Beach 83.5°F 83.3°F
Fort Lauderdale 83.5°F 83.0°F
Miami Beach 83.4°F 83.4°F
Key Largo 83.0°F 83.1°F
Miami 82.7°F 82.9°F
Corpus Christi 82.2°F 80.6°F
Naples 81.9°F 81.6°F
Kauai 81.3°F 79.2°F
Honolulu 80.7°F 80.6°F
Hawaii 80.6°F 80.5°F
Houston 80.4°F 78.8°F
Siesta Key 80.4°F 80.7°F
Sarasota 80.2°F 80.5°F
Port St. Lucie 80.2°F 80.4°F
Maui 79.8°F 79.4°F
Oahu 79.8°F 80.2°F
Tampa 79.4°F 79.3°F
Panama City Beach 79.2°F 78.9°F

Best time for vacation in Santa Catalina Island

Sunniest months:
July 23 days
August 23 days
October 21 days
Warmest months:
August 75.8 °F
September 74.3 °F
July 73.4 °F
Warmest sea temp:
August 70.9 °F
September 70.8 °F
July 68.7 °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
+68°F
E 14 mph
Feels like: +68°F
Precip.: 8%
Places in USA:
Name
°F
+59°F
+64°F
+79°F
+81°F
+77°F
+81°F
+64°F
+66°F
+72°F
+61°F
+75°F
+73°F
+82°F
+68°F
24 Hours Forecast
Santa Catalina Island
Local time: 22:31
September 30, wednesday
0000
66°F
N
5 mph
0300
68°F
NW
7 mph
0600
66°F
NW
7 mph
0900
68°F
NW
10 mph
1200
68°F
NW
7 mph
1500
68°F
NE
7 mph
1800
68°F
NE
6 mph
2100
66°F
N
5 mph
Units of measurement: °C / °F