Yes
you do need a jacket based on the weather in San Francisco (Western Addition), California, United States 1 second ago
Why? Because it's not very warm out.
51°F11°C & Mostly Cloudy
Wind is 6 mph10 km/h from the SW, gusting to 10 mph16 km/h
| April 19 | ||||
| 11am | 52°F11°C | 7 mph11 km/h SW | Mostly Cloudy | |
| 12pm | 53°F12°C | 7 mph11 km/h SW | Mostly Cloudy | |
| 1pm | 56°F13°C | 7 mph12 km/h SW | Partly Cloudy | |
| 2pm | 58°F14°C | 8 mph13 km/h SW | Partly Cloudy | |
| 3pm | 59°F15°C | 9 mph14 km/h SW | Mostly Clear | |
| 4pm | 60°F16°C | 10 mph16 km/h SW | Mostly Clear | |
| 5pm | 61°F16°C | 11 mph18 km/h SW | Mostly Clear | |
| 6pm | 60°F16°C | 12 mph19 km/h SW | Mostly Clear | |
| 7pm | 60°F15°C | 12 mph20 km/h SW | Mostly Clear | |
| 8pm | 58°F15°C | 12 mph19 km/h SW | Mostly Clear | |
| 9pm | 57°F14°C | 11 mph18 km/h SW | Mostly Clear | |
| 10pm | 56°F13°C | 10 mph17 km/h SW | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 19 | 50°F10°C | 61°F16°C | 10 mph15 km/h from SW | Partly Cloudy | Partly Cloudy |
| April 20 | 52°F11°C | 66°F19°C | 9 mph15 km/h from W | Mostly Clear | Clear |
| April 21 | 52°F11°C | 66°F19°C | 5 mph9 km/h from W | Clear | Mostly Clear |
| April 22 | 52°F11°C | 67°F19°C | 8 mph13 km/h from SW | Mostly Clear | Partly Cloudy |
| April 23 | 53°F12°C | 62°F16°C | 13 mph20 km/h from SW | Partly Cloudy | Mostly Cloudy |
| April 24 | 52°F11°C | 60°F16°C | 9 mph15 km/h from SW | Partly Cloudy | Mostly Cloudy |
| April 25 | 51°F10°C | 59°F15°C | 10 mph16 km/h from W | Mostly Cloudy | Partly Cloudy |
Yes
Low of 52°F11°C, High of 66°F19°CWind: 9 mph15 km/h
Precipitation: None