|
Typical San Diego September Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 76.8 °F | |
| Average daily low | 65.9 °F | |
| Average monthly precipitation | 0.1 inches | |
| Daily chance of precipitation | 3.1% | |
|
San Diego September Weather Records 1850–2024 |
||
|---|---|---|
| Highest temperature | 111 °F | September 26, 1963 |
| Lowest temperature | 50 °F | September 26, 1907 |
| Highest daily low | 78 °F | September 4, 2022 |
| Lowest daily high | 64 °F | September 28, 1933 |
| Hottest average high temperature | 83.7 °F | 1984 |
| Coldest average high temperature | 66.9 °F | 1933 |
| Most daily precipitation | 1.2 inches | September 30, 1921 |
| Most monthly precipitation | 2.6 inches | 1939 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| September 1 | 77.3 | 67.1 | 104 | 58 |
| September 2 | 77.3 | 67.0 | 99 | 56 |
| September 3 | 77.3 | 66.9 | 95 | 58 |
| September 4 | 77.2 | 66.8 | 107 | 55 |
| September 5 | 77.2 | 66.8 | 97 | 54 |
| September 6 | 77.1 | 66.7 | 100 | 56 |
| September 7 | 77.1 | 66.6 | 92 | 55 |
| September 8 | 77.1 | 66.5 | 100 | 55 |
| September 9 | 77.1 | 66.4 | 96 | 54 |
| September 10 | 77.0 | 66.3 | 96 | 55 |
| September 11 | 76.9 | 66.3 | 102 | 56 |
| September 12 | 76.9 | 66.2 | 97 | 54 |
| September 13 | 76.8 | 66.1 | 92 | 55 |
| September 14 | 76.8 | 66.0 | 92 | 53 |
| September 15 | 76.8 | 65.9 | 101 | 52 |
| September 16 | 76.8 | 65.8 | 100 | 51 |
| September 17 | 76.7 | 65.8 | 110 | 53 |
| September 18 | 76.7 | 65.7 | 93 | 50 |
| September 19 | 76.5 | 65.5 | 96 | 50 |
| September 20 | 76.3 | 65.4 | 99 | 53 |
| September 21 | 76.1 | 65.2 | 106 | 53 |
| September 22 | 76.0 | 65.0 | 101 | 53 |
| September 23 | 76.0 | 64.8 | 103 | 52 |
| September 24 | 76.0 | 64.6 | 99 | 52 |
| September 25 | 75.9 | 64.5 | 101 | 52 |
| September 26 | 75.9 | 64.4 | 111 | 50 |
| September 27 | 75.8 | 64.3 | 104 | 52 |
| September 28 | 75.8 | 64.1 | 99 | 53 |
| September 29 | 75.7 | 64.0 | 91 | 50 |
| September 30 | 75.7 | 63.9 | 96 | 51 |