No
you don't need a jacket based on the weather in Irvine, CA, USA 1 second ago
69°F20°C & Mostly Clear
Wind is 4 mph6 km/h from the West, gusting to 6 mph10 km/h
| December 16 | ||||
| 4pm | 69°F21°C | 4 mph7 km/h West | Clear | |
| 5pm | 69°F20°C | 5 mph9 km/h West | Mostly Clear | |
| 6pm | 67°F19°C | 5 mph9 km/h West | Partly Cloudy | |
| 7pm | 64°F18°C | 5 mph7 km/h West | Mostly Clear | |
| 8pm | 60°F16°C | 3 mph5 km/h Southwest | Mostly Clear | |
| 9pm | 57°F14°C | 2 mph4 km/h Southwest | Clear | |
| 10pm | 55°F13°C | 2 mph4 km/h Southwest | Mostly Clear | |
| 11pm | 53°F12°C | 2 mph4 km/h Southeast | Partly Cloudy | |
| December 17 | ||||
| 12am | 52°F11°C | 2 mph4 km/h Southeast | Partly Cloudy | |
| 1am | 51°F11°C | 3 mph5 km/h East | Partly Cloudy | |
| 2am | 50°F10°C | 3 mph5 km/h East | Partly Cloudy | |
| 3am | 49°F9°C | 3 mph5 km/h East | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 16 | 43°F6°C | 69°F21°C | 3 mph5 km/h from Southwest | Mostly Clear | Partly Cloudy |
| December 17 | 44°F7°C | 70°F21°C | 4 mph6 km/h from North | Clear | Mostly Clear |
| December 18 | 54°F12°C | 77°F25°C | 4 mph7 km/h from Northeast | Clear | Mostly Clear |
| December 19 | 51°F10°C | 73°F23°C | 3 mph4 km/h from South | Partly Cloudy | Mostly Clear |
| December 20 | 50°F10°C | 70°F21°C | 3 mph4 km/h from Southwest | Mostly Clear | Mostly Cloudy |
| December 21 | 48°F9°C | 66°F19°C | 4 mph6 km/h from West | Partly Cloudy | Partly Cloudy |
| December 22 | 49°F10°C | 64°F18°C | 3 mph4 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
Yes
Low of 45°F7°C, High of 70°F21°CWind: 4 mph6 km/h
Precipitation: None