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Los Angeles September Weather

Averages and records for weather in Los Angeles, California in the month of September.

Typical Los Angeles September Weather 1991–2020
Average daily high	76.3 °F
Average daily low	63.7 °F
Average monthly precipitation	0.1 inches
Daily chance of precipitation	1.7%

Los Angeles September Weather Records 1906–2024
Highest temperature	110 °F	September 26, 1963
Lowest temperature	47 °F	September 26, 1948
Highest daily low	84 °F	September 22, 1939
Lowest daily high	63 °F	September 24, 1986
Hottest average high temperature	86.5 °F	1939
Coldest average high temperature	72.0 °F	1969
Most daily precipitation	4.0 inches	September 25, 1939
Most monthly precipitation	5.7 inches	1939

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

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
September 1	76.8	64.7	108	57
September 2	76.7	64.7	104	55
September 3	76.7	64.6	97	54
September 4	76.7	64.5	106	55
September 5	76.6	64.5	101	55
September 6	76.5	64.4	99	55
September 7	76.5	64.3	98	52
September 8	76.5	64.3	100	54
September 9	76.5	64.2	102	56
September 10	76.5	64.2	98	54
September 11	76.5	64.1	103	53
September 12	76.4	64.0	95	53
September 13	76.4	64.0	98	54
September 14	76.3	63.9	96	55
September 15	76.3	63.8	102	52
September 16	76.2	63.7	103	51
September 17	76.2	63.6	108	55
September 18	76.2	63.4	103	54
September 19	76.1	63.3	104	53
September 20	75.9	63.2	107	53
September 21	75.7	63.0	106	53
September 22	75.7	62.8	103	50
September 23	75.7	62.7	104	52
September 24	75.6	62.5	105	55
September 25	75.6	62.4	105	52
September 26	75.6	62.3	110	47
September 27	75.5	62.2	105	52
September 28	75.5	62.1	104	53
September 29	75.5	62.0	102	52
September 30	75.4	61.9	105	52

Weather Station Details

Years	Station	Coordinates
1945–2024	Los Angeles International Airport	location
1906–1944	University of Southern California	location