World Resorts USA Santa Catalina Island Weather

Santa Catalina Island 7 Days Forecast

17.05
sun
Day
59°F
N 6 mph
Precip.
0%
Night
57°F
NW 9 mph
Precip.
0%
18.05
mon
Day
59°F
NW 10 mph
Precip.
0%
Night
59°F
NW 5 mph
Precip.
0%
19.05
tue
Day
59°F
E 6 mph
Precip.
0%
Night
59°F
NE 5 mph
Precip.
0%
20.05
wed
Day
61°F
NE 7 mph
Precip.
0%
Night
59°F
N 6 mph
Precip.
0%
21.05
thu
Day
59°F
NE 5 mph
Precip.
0%
Night
59°F
N 3 mph
Precip.
0%
22.05
fri
Day
59°F
NE 7 mph
Precip.
0%
Night
59°F
E 6 mph
Precip.
0%
23.05
sat
Day
59°F
E 7 mph
Precip.
0%
Night
57°F
E 7 mph
Precip.
0%

Sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 63.5°F. The highest and lowest sea temperatures during the month were 64.8°F and 62.2°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 73.3 °F
Warmest sea temp:
August 70.5 °F
September 70.4 °F
July 68.6 °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
11:30
Santa Catalina Island
+59°F
N 6 mph
Feels like: +59°F
Precip.: 0%
Places in USA:
Name
°F
Boston
+88°F
Hawaii
+77°F
Honolulu
+77°F
Las Vegas
+93°F
Los Angeles
+72°F
Miami
+88°F
Miami Beach
+86°F
Maui
+73°F
New York
+90°F
San Diego
+66°F
San Francisco
+70°F
Sarasota
+84°F
Tampa
+93°F
Houston
+90°F
Chicago
+72°F
all places
24 Hours Forecast
Santa Catalina Island
Local time: 11:30
May 17, sunday
1200
59°F
N
6 mph
1500
61°F
E
8 mph
1800
63°F
E
12 mph
2100
55°F
NE
9 mph
May 18, monday
0000
57°F
NW
9 mph
0300
57°F
NW
16 mph
0600
57°F
NW
14 mph
0900
59°F
NW
14 mph
Units of measurement: °C / °F