Measurements:
°C
°F
CURRENT WEATHER
21:48
Santa Catalina Island
68°F
E 14 mph
Feels like: 68°F
Precip: 6%
World Resorts USA Santa Catalina Island Weather

7 Day Weather Forecast

10.26
mon
DAY
68°F
E 9 mph
precip
6%
NIGHT
68°F
E 13 mph
precip
5%
10.27
tue
DAY
66°F
NW 7 mph
precip
7%
NIGHT
66°F
NE 4 mph
precip
19%
10.28
wed
DAY
66°F
N 6 mph
precip
18%
NIGHT
64°F
N 4 mph
precip
19%
10.29
thu
DAY
66°F
NE 5 mph
precip
19%
NIGHT
64°F
NE 5 mph
precip
19%
10.30
fri
DAY
64°F
E 5 mph
precip
5%
NIGHT
64°F
E 7 mph
precip
16%
10.31
sat
DAY
64°F
NE 7 mph
precip
18%
NIGHT
64°F
E 5 mph
precip
30%
11.01
sun
DAY
66°F
SE 5 mph
precip
12%
NIGHT
70°F
S 6 mph
precip
6%

Santa Catalina Island Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Santa Catalina Island was 22.2°F. The maximum and minimum values were 21.2°F and 23.5°F respectively.

Santa Catalina Island on the Weather Map

Best Time to Visit Santa Catalina Island
The most sunny months:
July 23 days
August 23 days
October 21 days
The most warm months:
August 78.7 °F
September 76.9 °F
July 76.0 °F
Warmest sea temperature:
August 73.3 °F
September 73.1 °F
July 70.8 °F
The most cold months:
December 63.2 °F
January 63.7 °F
March 63.9 °F
The most rainy months:
January 2 days
December 2 days
February 1 day
The most windy months:
March 8 mph
February 7 mph
April 7 mph
more details