Measurements:
°C
°F
CURRENT WEATHER
11:01
Santa Catalina Island
62°F
N 7 mph
Feels like: 62°F
Precip: 0%
World Resorts USA Santa Catalina Island Weather

7 Day Weather Forecast

05.14
thu
DAY
62°F
N 7 mph
precip
0%
NIGHT
58°F
E 5 mph
precip
0%
05.15
fri
DAY
58°F
N 8 mph
precip
0%
NIGHT
58°F
NE 4 mph
precip
0%
05.16
sat
DAY
60°F
N 4 mph
precip
0%
NIGHT
60°F
W 6 mph
precip
0%
05.17
sun
DAY
60°F
W 7 mph
precip
0%
NIGHT
60°F
NW 7 mph
precip
0%
05.18
mon
DAY
60°F
N 5 mph
precip
0%
NIGHT
60°F
N 4 mph
precip
0%
05.19
tue
DAY
62°F
NE 6 mph
precip
0%
NIGHT
60°F
N 2 mph
precip
0%
05.20
wed
DAY
62°F
NE 4 mph
precip
0%
NIGHT
60°F
NE 4 mph
precip
0%

Santa Catalina Island Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Santa Catalina Island was 17.1°F. The maximum and minimum values were 15.8°F and 18.8°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 75.9 °F
Warmest sea temperature:
August 72.7 °F
September 72.6 °F
July 70.7 °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
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