No
you don't need a jacket based on the weather in San Diego (Kearny Mesa), California, United States 1 second ago
66°F19°C & Clear
Wind is 2 mph4 km/h from the Southwest, gusting to 4 mph7 km/h
| October 18 | ||||
| 3am | 65°F18°C | 3 mph4 km/h Southwest | Clear | |
| 4am | 63°F17°C | 2 mph3 km/h West | Clear | |
| 5am | 62°F17°C | 3 mph4 km/h West | Clear | |
| 6am | 61°F16°C | 2 mph3 km/h North | Clear | |
| 7am | 60°F15°C | 1 mph2 km/h Northeast | Clear | |
| 8am | 59°F15°C | 2 mph4 km/h East | Clear | |
| 9am | 58°F14°C | 2 mph4 km/h Northeast | Clear | |
| 10am | 57°F14°C | 3 mph5 km/h Northeast | Clear | |
| 11am | 56°F13°C | 4 mph6 km/h Northeast | Clear | |
| 12pm | 55°F13°C | 4 mph6 km/h Northeast | Clear | |
| 1pm | 55°F13°C | 4 mph6 km/h Northeast | Clear | |
| 2pm | 55°F13°C | 4 mph6 km/h Northeast | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 17 | 53°F11°C | 77°F25°C | 4 mph7 km/h from Northwest | Clear | Clear |
| October 18 | 54°F12°C | 81°F27°C | 4 mph7 km/h from West | Clear | Mostly Clear |
| October 19 | 56°F13°C | 80°F26°C | 4 mph7 km/h from West | Clear | Clear |
| October 20 | 56°F14°C | 78°F26°C | 5 mph8 km/h from Northwest | Clear | Clear |
| October 21 | 57°F14°C | 71°F22°C | 5 mph8 km/h from Southwest | Mostly Clear | Partly Cloudy |
| October 22 | 58°F14°C | 69°F20°C | 6 mph10 km/h from West | Partly Cloudy | Partly Cloudy |
| October 23 | 57°F14°C | 71°F22°C | 5 mph8 km/h from Northwest | Clear | Mostly Clear |
Yes
Low of 55°F13°C, High of 81°F27°CWind: 4 mph7 km/h
Precipitation: None