Yes
you do need a jacket based on the weather in San Luis Obispo, CA 93401, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool and it's so windy, your hat is now someone else's problem, two cities away!
54°F12°C & Windy
Wind is 18 mph29 km/h from the South, gusting to 30 mph48 km/h
| March 12 | ||||
| 4pm | 54°F12°C | 18 mph29 km/h South | Rain | |
| 5pm | 55°F13°C | 18 mph29 km/h South | Windy | |
| 6pm | 56°F14°C | 19 mph30 km/h South | Windy | |
| 7pm | 55°F13°C | 18 mph28 km/h South | Windy | |
| 8pm | 54°F12°C | 17 mph28 km/h South | Drizzle | |
| 9pm | 52°F11°C | 18 mph28 km/h South | Rain | |
| 10pm | 51°F11°C | 19 mph30 km/h South | Rain | |
| 11pm | 50°F10°C | 15 mph24 km/h South | Heavy Rain | |
| March 13 | ||||
| 12am | 49°F9°C | 11 mph17 km/h Southwest | Heavy Rain | |
| 1am | 47°F9°C | 6 mph10 km/h Southwest | Rain | |
| 2am | 46°F8°C | 7 mph11 km/h Southwest | Rain | |
| 3am | 46°F8°C | 6 mph10 km/h South | Drizzle | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| March 12 | 46°F8°C | 56°F14°C | 14 mph22 km/h from South | Rain | Heavy Rain |
| March 13 | 40°F4°C | 51°F11°C | 11 mph18 km/h from West | Drizzle | Rain |
| March 14 | 39°F4°C | 55°F13°C | 9 mph15 km/h from Southwest | Rain | Mostly Clear |
| March 15 | 40°F4°C | 60°F16°C | 6 mph10 km/h from North | Mostly Clear | Mostly Clear |
| March 16 | 42°F6°C | 61°F16°C | 4 mph7 km/h from South | Cloudy | Mostly Cloudy |
| March 17 | 42°F6°C | 56°F13°C | 8 mph13 km/h from West | Rain | Mostly Clear |
| March 18 | 38°F3°C | 58°F15°C | 8 mph13 km/h from Northwest | Clear | Clear |
Yes
Low of 40°F5°C, High of 51°F11°CWind: 11 mph18 km/h
Precipitation: 50% rain