Yes
you do need a jacket based on the weather in San Francisco, CA, USA 1 second ago
Why? Because there's a refreshing nip in the air!
49°F10°C & Mostly Clear
Wind is 1 mph2 km/h from the South, gusting to 4 mph6 km/h
| January 6 | ||||
| 5am | 49°F10°C | 2 mph3 km/h South | Mostly Cloudy | |
| 6am | 49°F9°C | 2 mph4 km/h Southwest | Mostly Cloudy | |
| 7am | 49°F9°C | 2 mph4 km/h Southwest | Mostly Cloudy | |
| 8am | 48°F9°C | 2 mph3 km/h Southwest | Mostly Cloudy | |
| 9am | 49°F9°C | 2 mph3 km/h Southeast | Cloudy | |
| 10am | 49°F9°C | 3 mph4 km/h South | Cloudy | |
| 11am | 50°F10°C | 2 mph4 km/h North | Cloudy | |
| 12pm | 51°F10°C | 2 mph4 km/h North | Cloudy | |
| 1pm | 52°F11°C | 2 mph4 km/h North | Cloudy | |
| 2pm | 54°F12°C | 3 mph4 km/h North | Cloudy | |
| 3pm | 56°F13°C | 3 mph5 km/h Northwest | Cloudy | |
| 4pm | 57°F14°C | 3 mph5 km/h Northwest | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| January 6 | 48°F9°C | 59°F15°C | 3 mph5 km/h from Northwest | Mostly Cloudy | Mostly Clear |
| January 7 | 49°F9°C | 64°F18°C | 9 mph14 km/h from North | Mostly Clear | Partly Cloudy |
| January 8 | 45°F7°C | 62°F17°C | 4 mph6 km/h from Northeast | Mostly Clear | Clear |
| January 9 | 45°F7°C | 63°F17°C | 3 mph5 km/h from North | Clear | Mostly Clear |
| January 10 | 45°F7°C | 58°F15°C | 3 mph5 km/h from Northwest | Mostly Clear | Partly Cloudy |
| January 11 | 45°F7°C | 59°F15°C | 5 mph9 km/h from North | Mostly Clear | Clear |
| January 12 | 47°F8°C | 60°F16°C | 5 mph9 km/h from North | Clear | Clear |
Yes
Low of 49°F10°C, High of 64°F18°CWind: 9 mph14 km/h
Precipitation: None