07.09
mon
mon
Day
81°F
SE 9 mph
Precip.
14%
14%
Night
77°F
E 13 mph
Precip.
8%
8%
08.09
tue
tue
Day
79°F
E 12 mph
Precip.
18%
18%
Night
79°F
E 9 mph
Precip.
7%
7%
09.09
wed
wed
Day
82°F
NE 5 mph
Precip.
3%
3%
Night
72°F
NE 4 mph
Precip.
8%
8%
10.09
thu
thu
Day
79°F
NW 3 mph
Precip.
6%
6%
Night
70°F
NW 4 mph
Precip.
9%
9%
11.09
fri
fri
Day
70°F
NW 6 mph
Precip.
9%
9%
Night
66°F
NE 5 mph
Precip.
9%
9%
12.09
sat
sat
Day
68°F
NW 4 mph
Precip.
10%
10%
Night
66°F
N 6 mph
Precip.
8%
8%
13.09
sun
sun
Day
66°F
N 5 mph
Precip.
9%
9%
Night
66°F
NE 6 mph
Precip.
7%
7%
sea water
temperature
temperature
| Santa Catalina Island |
monthly
weather
weather
| Santa Catalina Island |
current
weather
weather
| Santa Catalina Island |
14 days
forecast
forecast
| Santa Catalina Island |
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 70.6°F. The highest and lowest sea temperatures during the month were 72.0°F and 69.1°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
Santa Catalina Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Santa Catalina Island
Local time: 16:20
September 07, monday
1800
81°F
E
12 mph
12 mph
2100
75°F
SE
14 mph
14 mph
September 08, tuesday
0000
77°F
E
13 mph
13 mph
0300
77°F
SE
11 mph
11 mph
0600
77°F
SE
11 mph
11 mph
0900
77°F
SE
9 mph
9 mph
1200
79°F
E
12 mph
12 mph
1500
77°F
E
14 mph
14 mph
