Measurements:
°C
°F
Santa Catalina Island
76°F
E 9 mph
Feels like: 80°F
Precip: 7%
World Resorts USA Santa Catalina Island Weather

14 Day Weather Forecast

08.25
tue
DAY
86°F
NE 3 mph
precip
15%
NIGHT
80°F
NE 6 mph
precip
8%
08.26
wed
DAY
82°F
NW 4 mph
precip
7%
NIGHT
78°F
W 6 mph
precip
10%
08.27
thu
DAY
74°F
N 4 mph
precip
44%
NIGHT
78°F
NW 4 mph
precip
23%
08.28
fri
DAY
80°F
E 4 mph
precip
19%
NIGHT
78°F
E 8 mph
precip
11%
08.29
sat
DAY
72°F
E 7 mph
precip
7%
NIGHT
70°F
NE 6 mph
precip
8%
08.30
sun
DAY
72°F
SE 6 mph
precip
8%
NIGHT
68°F
N 6 mph
precip
8%
08.31
mon
DAY
70°F
N 5 mph
precip
6%
NIGHT
70°F
NE 2 mph
precip
21%
09.01
tue
DAY
72°F
SE 6 mph
precip
17%
NIGHT
80°F
SE 3 mph
precip
18%
09.02
wed
DAY
78°F
E 9 mph
precip
25%
NIGHT
78°F
NE 6 mph
precip
11%
09.03
thu
DAY
76°F
E 8 mph
precip
9%
NIGHT
74°F
E 10 mph
precip
11%
09.04
fri
DAY
70°F
E 9 mph
precip
10%
NIGHT
72°F
E 9 mph
precip
11%
09.05
sat
DAY
72°F
NE 6 mph
precip
9%
NIGHT
68°F
NE 6 mph
precip
9%
09.06
sun
DAY
68°F
N 6 mph
precip
7%
NIGHT
68°F
NE 1 mph
precip
6%
09.07
mon
DAY
74°F
E 6 mph
precip
4%
NIGHT
76°F
E 11 mph
precip
9%

Santa Catalina Island Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Santa Catalina Island was 76.0°F. The maximum and minimum values were 74.8°F and 77.2°F respectively.

Santa Catalina Island on the Weather Map

Best Time to Visit Santa Catalina Island
The most sunny months:
August 24 days
July 23 days
September 21 days
The most warm months:
August 77.9 °F
September 77.4 °F
July 76.0 °F
Warmest sea temperature:
August 73.2 °F
September 72.6 °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
USA Resorts:
NAME
Boston +80
Chicago +82
Hawaii +84
Houston +108
Las Vegas +116
Los Angeles +96
Maui +70
Miami +92
Myrtle Beach +84
New York +82
San Diego +96
San Francisco +64
Santa Monica +86
Sarasota +92
Washington +84
24 Hours Weather Forecast
Santa Catalina Island
Local time: 14:30
25 aug, tuesday
1500 76°F
E
9 mph
1800 76°F
E
9 mph
2100 76°F
NE
7 mph
26 aug, wednesday
0000 80°F
NE
6 mph
0300 80°F
W
6 mph
0600 80°F
NW
5 mph
0900 80°F
NW
6 mph
1200 82°F
NW
4 mph