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Santa Cantalina Island August Weather

Averages and records for weather in Santa Cantalina Island, California in the month of August.

Typical Santa Cantalina Island August Weather 1991–2020
Average daily high	78.9 °F
Average daily low	62.2 °F
Average monthly precipitation	0.0 inches
Daily chance of precipitation	6.1%

Santa Cantalina Island August Weather Records 1948–2024
Highest temperature	103 °F	August 29, 1967
Lowest temperature	50 °F	August 30, 2010
Highest daily low	84 °F	August 29, 1967
Lowest daily high	60 °F	August 29, 2000
Hottest average high temperature	83.7 °F	1967
Coldest average high temperature	74.1 °F	2004
Most daily precipitation	0.1 inches	August 21, 2023
Most monthly precipitation	0.1 inches	2023

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
August 1	77.7	60.8	94	54
August 2	77.8	61.0	91	52
August 3	77.9	61.1	90	54
August 4	77.9	61.1	89	53
August 5	77.9	61.1	89	51
August 6	77.8	61.0	94	51
August 7	77.8	61.0	95	52
August 8	77.6	61.0	98	51
August 9	77.6	61.0	96	51
August 10	77.6	61.1	97	53
August 11	77.7	61.2	93	52
August 12	77.9	61.4	91	51
August 13	78.2	61.7	96	52
August 14	78.4	61.9	97	50
August 15	78.6	62.1	97	52
August 16	78.8	62.2	97	53
August 17	78.9	62.4	93	54
August 18	79.0	62.5	97	54
August 19	79.1	62.7	96	54
August 20	79.3	62.8	96	53
August 21	79.4	63.0	94	54
August 22	79.6	63.2	90	53
August 23	79.8	63.4	95	52
August 24	79.9	63.4	92	55
August 25	79.8	63.4	92	54
August 26	79.7	63.4	95	53
August 27	79.6	63.4	97	52
August 28	79.5	63.4	95	52
August 29	79.4	63.4	103	52
August 30	79.3	63.3	101	50
August 31	79.2	63.3	102	53

Weather Station Details

Years	Station	Coordinates
1948–2024	Avalon Catalina Airport	location