Yes

you do need a jacket based on the weather in San Francisco, CA, USA 28 minutes ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
57°F14°C & Cloudy

Wind is 4 mph7 km/h from the Southwest, gusting to 12 mph19 km/h
July 18
5am57°F14°C5 mph8 km/h SouthwestCloudy
6am57°F14°C5 mph8 km/h SouthwestCloudy
7am56°F13°C5 mph9 km/h WestCloudy
8am56°F13°C5 mph8 km/h WestCloudy
9am56°F13°C4 mph7 km/h WestCloudy
10am56°F13°C4 mph7 km/h WestCloudy
11am57°F14°C5 mph8 km/h WestMostly Cloudy
12pm58°F14°C6 mph10 km/h WestMostly Cloudy
1pm60°F15°C6 mph10 km/h WestMostly Cloudy
2pm61°F16°C7 mph12 km/h WestMostly Cloudy
3pm63°F17°C8 mph14 km/h WestPartly Cloudy
4pm64°F18°C10 mph16 km/h WestMostly Clear
DateLowHighWindDayNight
July 1856°F13°C65°F18°C9 mph14 km/h from WestPartly CloudyMostly Cloudy
July 1955°F13°C64°F18°C9 mph15 km/h from WestPartly CloudyMostly Cloudy
July 2055°F13°C65°F18°C10 mph17 km/h from SouthwestPartly CloudyMostly Cloudy
July 2156°F13°C66°F19°C12 mph19 km/h from WestMostly CloudyCloudy
July 2256°F13°C66°F19°C9 mph15 km/h from WestMostly CloudyMostly Cloudy
July 2356°F14°C66°F19°C9 mph14 km/h from WestMostly CloudyMostly Cloudy
July 2457°F14°C67°F20°C9 mph15 km/h from WestMostly CloudyMostly Cloudy

Yes

Low of 55°F13°C, High of 64°F18°C
Wind: 9 mph15 km/h
Precipitation: None

Support This Page