World Resorts USA Santa Catalina Island Weather

Santa Catalina Island 14 Days Forecast

15.08
sat
Day
66°F
E 10 mph
Precip.
9%
Night
66°F
E 11 mph
Precip.
9%
16.08
sun
Day
66°F
E 11 mph
Precip.
9%
Night
66°F
E 13 mph
Precip.
8%
17.08
mon
Day
68°F
E 7 mph
Precip.
7%
Night
68°F
E 7 mph
Precip.
9%
18.08
tue
Day
68°F
NE 6 mph
Precip.
8%
Night
68°F
E 6 mph
Precip.
11%
19.08
wed
Day
68°F
NE 3 mph
Precip.
8%
Night
68°F
NE 6 mph
Precip.
10%
20.08
thu
Day
68°F
N 5 mph
Precip.
9%
Night
68°F
NE 2 mph
Precip.
12%
21.08
fri
Day
68°F
NE 4 mph
Precip.
10%
Night
68°F
N 2 mph
Precip.
11%
22.08
sat
Day
68°F
NE 4 mph
Precip.
15%
Night
68°F
NE 2 mph
Precip.
11%
23.08
sun
Day
70°F
E 6 mph
Precip.
9%
Night
68°F
E 6 mph
Precip.
10%
24.08
mon
Day
68°F
NE 5 mph
Precip.
8%
Night
68°F
N 4 mph
Precip.
11%
25.08
tue
Day
68°F
N 5 mph
Precip.
10%
Night
70°F
NE 2 mph
Precip.
35%
26.08
wed
Day
72°F
E 6 mph
Precip.
7%
Night
72°F
N 2 mph
Precip.
15%
27.08
thu
Day
72°F
NE 6 mph
Precip.
8%
Night
72°F
N 4 mph
Precip.
9%
28.08
fri
Day
72°F
N 5 mph
Precip.
8%
Night
73°F
NE 6 mph
Precip.
9%

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 73.5°F. The highest and lowest sea temperatures during the month were 74.5°F and 72.3°F.

Air temperature in Santa Catalina Island, °F

Precipitation total in Santa Catalina Island, in.

* Charts above show average data for the last 3 years.

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 73.4 °F
Warmest sea temp:
August 70.5 °F
September 70.4 °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

Current weather
18:25
Santa Catalina Island
+66°F
E 16 mph
Feels like: +66°F
Precip.: 10%
Places in USA:
Name
°F
Boston
+68°F
Washington
+77°F
Hawaii
+81°F
Las Vegas
+88°F
Los Angeles
+79°F
Miami
+86°F
Maui
+75°F
Myrtle Beach
+84°F
New York
+79°F
San Diego
+75°F
San Francisco
+63°F
Santa Monica
+77°F
Sarasota
+84°F
Houston
+86°F
Chicago
+73°F
all places
24 Hours Forecast
Santa Catalina Island
Local time: 18:25
August 15, saturday
2100
66°F
E
11 mph
August 16, sunday
0000
66°F
E
11 mph
0300
66°F
E
9 mph
0600
66°F
E
6 mph
0900
66°F
E
7 mph
1200
66°F
E
11 mph
1500
66°F
E
16 mph
1800
66°F
E
17 mph
Units of measurement: °C / °F