No

you don't need a jacket based on the weather in San Diego, CA, USA 1 minute ago

70°F21°C & Mostly Clear

Wind is 9 mph14 km/h from the Southwest, gusting to 12 mph19 km/h
June 23
5pm70°F21°C9 mph14 km/h SouthwestMostly Clear
6pm70°F21°C9 mph15 km/h SouthwestMostly Clear
7pm69°F20°C9 mph14 km/h SouthwestPartly Cloudy
8pm67°F19°C8 mph13 km/h SouthwestPartly Cloudy
9pm66°F19°C7 mph11 km/h SouthwestPartly Cloudy
10pm64°F18°C6 mph10 km/h SouthwestPartly Cloudy
11pm63°F17°C5 mph9 km/h SouthwestPartly Cloudy
June 24
12am62°F17°C4 mph7 km/h SouthwestMostly Cloudy
1am62°F16°C3 mph5 km/h SouthwestPartly Cloudy
2am61°F16°C3 mph5 km/h SouthPartly Cloudy
3am60°F16°C3 mph5 km/h SouthPartly Cloudy
4am60°F15°C3 mph5 km/h SouthPartly Cloudy
DateLowHighWindDayNight
June 2360°F16°C70°F21°C7 mph11 km/h from SouthwestPartly CloudyPartly Cloudy
June 2458°F14°C71°F22°C6 mph10 km/h from WestMostly ClearPartly Cloudy
June 2560°F15°C72°F22°C6 mph10 km/h from WestMostly ClearMostly Clear
June 2660°F16°C72°F22°C6 mph10 km/h from SouthwestMostly ClearMostly Clear
June 2759°F15°C72°F22°C6 mph10 km/h from SouthwestMostly ClearMostly Clear
June 2860°F15°C73°F23°C6 mph10 km/h from WestMostly ClearMostly Clear
June 2960°F16°C73°F23°C6 mph10 km/h from WestMostly ClearMostly Clear

Yes

Low of 57°F14°C, High of 71°F22°C
Wind: 6 mph10 km/h
Precipitation: None

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