No
you don't need a jacket based on the weather in San Mateo, CA, USA 1 second ago
63°F17°C & Partly Cloudy
Wind is 8 mph13 km/h from the West, gusting to 19 mph30 km/h
| September 5 | ||||
| 11pm | 63°F17°C | 8 mph12 km/h West | Partly Cloudy | |
| September 6 | ||||
| 12am | 62°F17°C | 6 mph10 km/h West | Partly Cloudy | |
| 1am | 61°F16°C | 5 mph8 km/h West | Partly Cloudy | |
| 2am | 61°F16°C | 4 mph7 km/h Southwest | Partly Cloudy | |
| 3am | 60°F16°C | 5 mph7 km/h Southwest | Cloudy | |
| 4am | 61°F16°C | 4 mph6 km/h Southwest | Cloudy | |
| 5am | 60°F16°C | 4 mph6 km/h West | Cloudy | |
| 6am | 60°F16°C | 6 mph9 km/h West | Cloudy | |
| 7am | 60°F15°C | 6 mph9 km/h West | Cloudy | |
| 8am | 59°F15°C | 6 mph9 km/h West | Cloudy | |
| 9am | 59°F15°C | 5 mph8 km/h West | Cloudy | |
| 10am | 59°F15°C | 5 mph8 km/h West | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 5 | 60°F16°C | 71°F22°C | 6 mph9 km/h from West | Mostly Cloudy | Mostly Cloudy |
| September 6 | 59°F15°C | 71°F21°C | 7 mph11 km/h from West | Partly Cloudy | Partly Cloudy |
| September 7 | 59°F15°C | 74°F23°C | 6 mph9 km/h from West | Partly Cloudy | Mostly Cloudy |
| September 8 | 61°F16°C | 73°F23°C | 6 mph10 km/h from West | Partly Cloudy | Mostly Cloudy |
| September 9 | 61°F16°C | 71°F22°C | 7 mph11 km/h from West | Mostly Cloudy | Mostly Cloudy |
| September 10 | 60°F16°C | 70°F21°C | 8 mph12 km/h from West | Partly Cloudy | Mostly Cloudy |
| September 11 | 59°F15°C | 71°F22°C | 6 mph9 km/h from West | Mostly Clear | Partly Cloudy |
No
Low of 59°F15°C, High of 71°F22°CWind: 7 mph11 km/h
Precipitation: None