Yes

you do need a jacket based on the weather in (San Pedro), California, United States 1 second ago

Why? Because it's pretty chilly.
53°F12°C & Partly Cloudy

Wind is 2 mph4 km/h from the NW, gusting to 4 mph7 km/h
March 28
8am53°F12°C3 mph5 km/h NWPartly Cloudy
9am53°F12°C3 mph4 km/h WPartly Cloudy
10am52°F11°C3 mph4 km/h NWPartly Cloudy
11am53°F12°C3 mph4 km/h NWPartly Cloudy
12pm55°F13°C2 mph4 km/h NWPartly Cloudy
1pm58°F14°C3 mph4 km/h SWPartly Cloudy
2pm59°F15°C5 mph8 km/h SWMostly Clear
3pm61°F16°C7 mph11 km/h SWMostly Clear
4pm62°F17°C9 mph14 km/h WMostly Clear
5pm63°F17°C11 mph17 km/h WMostly Clear
6pm63°F17°C12 mph19 km/h WMostly Clear
7pm63°F17°C12 mph20 km/h WClear
DateLowHighWindDayNight
March 2852°F11°C63°F17°C8 mph13 km/h from WMostly ClearMostly Clear
March 2951°F11°C60°F16°C7 mph12 km/h from SWPartly CloudyRain
March 3052°F11°C58°F14°C8 mph14 km/h from SWRainRain
March 3152°F11°C58°F15°C10 mph16 km/h from SERainPartly Cloudy
April 149°F10°C63°F17°C7 mph11 km/h from WClearClear
April 252°F11°C67°F19°C6 mph10 km/h from WClearClear
April 352°F11°C69°F21°C6 mph10 km/h from WClearClear

Yes

Low of 52°F11°C, High of 60°F16°C
Wind: 7 mph12 km/h
Precipitation: None

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