Yes
you do need a jacket based on the weather in San Francisco, CA, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool.
55°F13°C & Mostly Clear
Wind is 12 mph20 km/h from the W, gusting to 24 mph38 km/h
| April 26 | ||||
| 12pm | 55°F13°C | 13 mph20 km/h W | Mostly Cloudy | |
| 1pm | 57°F14°C | 14 mph23 km/h W | Partly Cloudy | |
| 2pm | 59°F15°C | 16 mph25 km/h W | Windy | |
| 3pm | 60°F16°C | 18 mph28 km/h W | Windy | |
| 4pm | 61°F16°C | 19 mph30 km/h W | Windy | |
| 5pm | 61°F16°C | 20 mph32 km/h W | Windy | |
| 6pm | 61°F16°C | 20 mph33 km/h W | Windy | |
| 7pm | 60°F16°C | 20 mph33 km/h W | Windy | |
| 8pm | 59°F15°C | 20 mph33 km/h W | Windy | |
| 9pm | 58°F14°C | 20 mph32 km/h W | Windy | |
| 10pm | 56°F14°C | 19 mph30 km/h W | Windy | |
| 11pm | 55°F13°C | 17 mph27 km/h NW | Windy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 26 | 53°F11°C | 61°F16°C | 17 mph28 km/h from W | Windy | Mostly Clear |
| April 27 | 50°F10°C | 62°F17°C | 11 mph18 km/h from W | Mostly Clear | Mostly Clear |
| April 28 | 52°F11°C | 64°F18°C | 12 mph20 km/h from W | Clear | Mostly Clear |
| April 29 | 50°F10°C | 64°F18°C | 9 mph15 km/h from W | Clear | Clear |
| April 30 | 50°F10°C | 65°F18°C | 7 mph12 km/h from W | Clear | Clear |
| May 1 | 52°F11°C | 65°F19°C | 8 mph13 km/h from W | Clear | Mostly Clear |
| May 2 | 52°F11°C | 64°F18°C | 10 mph16 km/h from W | Mostly Clear | Mostly Clear |
Yes
Low of 50°F10°C, High of 62°F17°CWind: 11 mph18 km/h
Precipitation: None