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Santa Catalina Island weather in December

Weather in Santa Catalina Island: December

Average day temperature: 63.2°F
Average night temperature: 56.7°F
Sea water temperature: 60.8°F
Number of sunny days: 17 days
Day length: 9.9 - 10.1 hours
Number of rainy days: 3 days
Precipitation totals: 0.9 in.

Air temperature in December, °F

Show year:
2023
2022
2021

The highest day temperature during December of 2023 was 68°F. At the same time the lowest night temperature was 57°F. Day and night temperature averages during December were 63.0°F and 62.4°F.

Sea water temperature in Santa Catalina Island in December, °F

Show year:
2024
2023
2022

The average sea water temperature in December of 2023 was 62.5°F. The highest and lowest sea temperatures during the month were 64.2°F and 61.2°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are sunny but cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Santa Catalina Island in December is 0.9 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 6.2 mph It makes December one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 6.3.

Best time for vacation in Santa Catalina Island

Sunniest months:
August 29 days
July 28 days
September 24 days
Warmest months:
August 76.5 °F
September 75.9 °F
July 74.9 °F
Warmest sea temp:
August 70.6 °F
September 70.3 °F
July 68.7 °F
Coldest months:
March 62.0 °F
January 63.2 °F
December 63.2 °F
Rainiest months:
December 3 days
January 2 days
February 1 day
Windiest months:
March 8.3 mph
April 7.5 mph
May 7.5 mph

Santa Catalina Island on a weather map

Santa Catalina Island
+59°F
E 6 mph
Feels like: +59°F
Precip.: 0%
Places in USA:
Name
°F
+19°F
+30°F
+77°F
+77°F
+48°F
+54°F
+66°F
+25°F
+59°F
+54°F
+54°F
+57°F
+54°F
+54°F
+30°F
24 Hours Forecast
Santa Catalina Island
Local time: 09:39
December 22, sunday
1200
55°F
SE
3 mph
1500
55°F
E
6 mph
1800
59°F
E
7 mph
2100
63°F
E
9 mph
December 23, monday
0000
59°F
E
5 mph
0300
59°F
E
2 mph
0600
59°F
W
1 mph
0900
55°F
NE
3 mph
Units of measurement: °C / °F