Yes
you do need a jacket based on the weather in San Francisco (Fisherman's Wharf), California, United States 1 second ago
Why? Because it's on the windy side!
70°F21°C & Mostly Clear
Wind is 13 mph21 km/h from the West, gusting to 19 mph31 km/h
| September 16 | ||||
| 6pm | 70°F21°C | 13 mph22 km/h West | Mostly Clear | |
| 7pm | 69°F21°C | 13 mph21 km/h West | Mostly Clear | |
| 8pm | 68°F20°C | 12 mph20 km/h West | Mostly Clear | |
| 9pm | 67°F19°C | 11 mph17 km/h Southwest | Mostly Clear | |
| 10pm | 64°F18°C | 9 mph15 km/h Southwest | Mostly Clear | |
| 11pm | 63°F17°C | 9 mph14 km/h Southwest | Mostly Clear | |
| September 17 | ||||
| 12am | 62°F17°C | 8 mph13 km/h Southwest | Mostly Clear | |
| 1am | 62°F17°C | 5 mph8 km/h Southwest | Mostly Clear | |
| 2am | 61°F16°C | 5 mph8 km/h Southwest | Mostly Clear | |
| 3am | 60°F16°C | 5 mph8 km/h Southwest | Mostly Clear | |
| 4am | 59°F15°C | 5 mph8 km/h Southwest | Partly Cloudy | |
| 5am | 59°F15°C | 4 mph7 km/h Southwest | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 16 | 60°F16°C | 70°F21°C | 9 mph15 km/h from West | Mostly Clear | Partly Cloudy |
| September 17 | 58°F14°C | 75°F24°C | 5 mph9 km/h from Southwest | Partly Cloudy | Mostly Cloudy |
| September 18 | 61°F16°C | 66°F19°C | 8 mph13 km/h from Southwest | Cloudy | Cloudy |
| September 19 | 61°F16°C | 70°F21°C | 6 mph10 km/h from Southwest | Partly Cloudy | Mostly Cloudy |
| September 20 | 59°F15°C | 70°F21°C | 6 mph10 km/h from West | Mostly Clear | Partly Cloudy |
| September 21 | 59°F15°C | 72°F22°C | 5 mph9 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 22 | 58°F15°C | 72°F22°C | 5 mph8 km/h from Southwest | Partly Cloudy | Mostly Cloudy |
Yes
Low of 58°F15°C, High of 75°F24°CWind: 5 mph9 km/h
Precipitation: None