No

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

60°F15°C & Cloudy

Wind is 6 mph10 km/h from the West, gusting to 13 mph21 km/h
September 5
12pm61°F16°C7 mph11 km/h WestCloudy
1pm62°F17°C8 mph12 km/h WestMostly Cloudy
2pm64°F18°C9 mph15 km/h WestMostly Cloudy
3pm66°F19°C11 mph18 km/h WestMostly Cloudy
4pm67°F20°C13 mph20 km/h WestPartly Cloudy
5pm68°F20°C14 mph22 km/h WestMostly Clear
6pm68°F20°C14 mph23 km/h WestMostly Clear
7pm68°F20°C14 mph22 km/h WestMostly Clear
8pm67°F20°C14 mph22 km/h WestMostly Clear
9pm66°F19°C13 mph21 km/h WestMostly Clear
10pm64°F18°C12 mph19 km/h WestPartly Cloudy
11pm62°F17°C11 mph17 km/h WestPartly Cloudy
DateLowHighWindDayNight
September 559°F15°C68°F20°C11 mph18 km/h from WestPartly CloudyMostly Cloudy
September 659°F15°C70°F21°C9 mph15 km/h from WestPartly CloudyPartly Cloudy
September 760°F16°C73°F23°C7 mph12 km/h from WestPartly CloudyMostly Cloudy
September 862°F17°C72°F22°C8 mph12 km/h from WestMostly CloudyMostly Cloudy
September 961°F16°C71°F21°C9 mph14 km/h from WestMostly CloudyMostly Cloudy
September 1059°F15°C71°F21°C8 mph13 km/h from SouthwestPartly CloudyMostly Cloudy
September 1159°F15°C70°F21°C7 mph11 km/h from SouthwestMostly ClearMostly Cloudy

No

Low of 59°F15°C, High of 70°F21°C
Wind: 9 mph15 km/h
Precipitation: None

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