Measurements:
°C
°F
CURRENT WEATHER
13:38
Santa Catalina Island
72°F
E 8 mph
Feels like: 72°F
Precip: 0%
World Resorts USA Santa Catalina Island Weather

7 Day Weather Forecast

04.23
thu
DAY
70°F
S 1 mph
precip
0%
NIGHT
60°F
NE 10 mph
precip
0%
04.24
fri
DAY
60°F
NE 5 mph
precip
0%
NIGHT
58°F
E 17 mph
precip
0%
04.25
sat
DAY
58°F
E 13 mph
precip
63%
NIGHT
58°F
E 17 mph
precip
100%
04.26
sun
DAY
58°F
E 14 mph
precip
0%
NIGHT
58°F
E 12 mph
precip
84%
04.27
mon
DAY
58°F
E 8 mph
precip
0%
NIGHT
58°F
E 9 mph
precip
0%
04.28
tue
DAY
58°F
E 9 mph
precip
0%
NIGHT
60°F
SE 8 mph
precip
0%
04.29
wed
DAY
60°F
E 10 mph
precip
0%
NIGHT
60°F
E 9 mph
precip
100%

Santa Catalina Island Sea Water Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Santa Catalina Island was 17.7°F. The maximum and minimum values were 17.1°F and 18.1°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
April 1 day
The most windy months:
March 8 mph
February 7 mph
April 7 mph
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