No
you don't need a jacket based on the weather in San Francisco (South Beach), California, United States 1 second ago
65°F18°C & Mostly Clear
Wind is 1 mph2 km/h from the West, gusting to 4 mph6 km/h
| September 16 | ||||
| 1pm | 65°F19°C | 2 mph3 km/h West | Clear | |
| 2pm | 69°F20°C | 4 mph6 km/h West | Clear | |
| 3pm | 71°F22°C | 6 mph10 km/h West | Clear | |
| 4pm | 72°F22°C | 8 mph13 km/h West | Clear | |
| 5pm | 73°F23°C | 10 mph16 km/h West | Clear | |
| 6pm | 72°F22°C | 10 mph16 km/h West | Clear | |
| 7pm | 71°F22°C | 9 mph15 km/h West | Clear | |
| 8pm | 72°F22°C | 7 mph12 km/h West | Clear | |
| 9pm | 70°F21°C | 5 mph9 km/h West | Clear | |
| 10pm | 67°F19°C | 5 mph7 km/h Southwest | Clear | |
| 11pm | 65°F18°C | 4 mph7 km/h Southwest | Mostly Clear | |
| September 17 | ||||
| 12am | 63°F17°C | 4 mph7 km/h Southwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 16 | 60°F16°C | 73°F23°C | 6 mph9 km/h from West | Clear | Partly Cloudy |
| September 17 | 58°F14°C | 75°F24°C | 5 mph9 km/h from Southwest | Mostly Clear | Mostly Cloudy |
| September 18 | 61°F16°C | 68°F20°C | 8 mph13 km/h from Southwest | Cloudy | Cloudy |
| September 19 | 61°F16°C | 71°F22°C | 6 mph10 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| September 20 | 60°F16°C | 71°F21°C | 7 mph10 km/h from West | Mostly Clear | Partly Cloudy |
| September 21 | 59°F15°C | 74°F23°C | 5 mph8 km/h from West | Mostly Clear | Partly Cloudy |
| September 22 | 59°F15°C | 71°F22°C | 5 mph7 km/h from West | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 57°F14°C, High of 75°F24°CWind: 5 mph9 km/h
Precipitation: None