Yes
you do need a jacket based on the weather in San Francisco (Financial District), California, United States 1 second ago
Why? Because it's not very warm out!
57°F14°C & Cloudy
Wind is 6 mph10 km/h from the Southwest, gusting to 11 mph18 km/h
| July 31 | ||||
| 7am | 57°F14°C | 7 mph11 km/h Southwest | Cloudy | |
| 8am | 57°F14°C | 6 mph10 km/h Southwest | Cloudy | |
| 9am | 58°F14°C | 6 mph10 km/h South | Cloudy | |
| 10am | 58°F14°C | 6 mph10 km/h South | Cloudy | |
| 11am | 59°F15°C | 6 mph9 km/h South | Cloudy | |
| 12pm | 60°F16°C | 6 mph9 km/h South | Cloudy | |
| 1pm | 62°F16°C | 4 mph7 km/h South | Mostly Cloudy | |
| 2pm | 63°F17°C | 5 mph9 km/h Southwest | Mostly Cloudy | |
| 3pm | 65°F19°C | 6 mph10 km/h Southwest | Partly Cloudy | |
| 4pm | 67°F19°C | 8 mph13 km/h Southwest | Partly Cloudy | |
| 5pm | 68°F20°C | 9 mph15 km/h Southwest | Mostly Clear | |
| 6pm | 68°F20°C | 10 mph16 km/h Southwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| July 31 | 57°F14°C | 68°F20°C | 8 mph13 km/h from Southwest | Partly Cloudy | Mostly Cloudy |
| August 1 | 57°F14°C | 69°F20°C | 9 mph14 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| August 2 | 57°F14°C | 71°F22°C | 8 mph12 km/h from Southwest | Mostly Clear | Partly Cloudy |
| August 3 | 56°F14°C | 69°F21°C | 11 mph17 km/h from West | Mostly Clear | Mostly Clear |
| August 4 | 56°F14°C | 69°F20°C | 9 mph14 km/h from Southwest | Mostly Clear | Mostly Clear |
| August 5 | 55°F13°C | 71°F22°C | 6 mph10 km/h from Southwest | Mostly Clear | Mostly Clear |
| August 6 | 56°F13°C | 72°F22°C | 6 mph10 km/h from Southwest | Mostly Clear | Mostly Clear |
Yes
Low of 57°F14°C, High of 69°F21°CWind: 9 mph14 km/h
Precipitation: None