No
you don't need a jacket based on the weather in South San Francisco, CA, USA 1 second ago
60°F16°C & Mostly Clear
Wind is 1 mph2 km/h from the N, gusting to 4 mph7 km/h
| April 16 | ||||
| 2pm | 61°F16°C | 2 mph3 km/h N | Mostly Clear | |
| 3pm | 64°F18°C | 3 mph6 km/h NW | Clear | |
| 4pm | 66°F19°C | 5 mph8 km/h NW | Mostly Clear | |
| 5pm | 67°F19°C | 7 mph12 km/h W | Partly Cloudy | |
| 6pm | 66°F19°C | 9 mph14 km/h W | Mostly Clear | |
| 7pm | 65°F18°C | 9 mph15 km/h W | Partly Cloudy | |
| 8pm | 63°F17°C | 9 mph15 km/h W | Partly Cloudy | |
| 9pm | 62°F16°C | 8 mph13 km/h W | Mostly Cloudy | |
| 10pm | 59°F15°C | 7 mph12 km/h W | Mostly Cloudy | |
| 11pm | 57°F14°C | 6 mph9 km/h W | Mostly Cloudy | |
| April 17 | ||||
| 12am | 56°F13°C | 5 mph8 km/h W | Mostly Cloudy | |
| 1am | 55°F13°C | 4 mph7 km/h SW | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 16 | 48°F9°C | 67°F19°C | 5 mph8 km/h from W | Mostly Clear | Mostly Cloudy |
| April 17 | 51°F10°C | 71°F22°C | 5 mph8 km/h from NW | Mostly Cloudy | Mostly Clear |
| April 18 | 51°F10°C | 68°F20°C | 5 mph8 km/h from W | Mostly Cloudy | Mostly Cloudy |
| April 19 | 51°F11°C | 63°F17°C | 8 mph12 km/h from W | Mostly Clear | Mostly Clear |
| April 20 | 52°F11°C | 66°F19°C | 9 mph14 km/h from W | Clear | Mostly Clear |
| April 21 | 52°F11°C | 65°F19°C | 6 mph10 km/h from W | Mostly Clear | Partly Cloudy |
| April 22 | 50°F10°C | 61°F16°C | 10 mph16 km/h from W | Partly Cloudy | Mostly Cloudy |
Yes
Low of 51°F11°C, High of 71°F22°CWind: 5 mph8 km/h
Precipitation: None