No
you don't need a jacket based on the weather in San Mateo, CA, USA 1 second ago
61°F16°C & Mostly Clear
Wind is 9 mph15 km/h from the West, gusting to 13 mph21 km/h
| April 3 | ||||
| 8pm | 61°F16°C | 10 mph16 km/h West | Clear | |
| 9pm | 59°F15°C | 10 mph16 km/h West | Clear | |
| 10pm | 57°F14°C | 9 mph15 km/h West | Clear | |
| 11pm | 54°F12°C | 9 mph14 km/h West | Clear | |
| April 4 | ||||
| 12am | 53°F12°C | 7 mph11 km/h West | Clear | |
| 1am | 51°F11°C | 5 mph9 km/h West | Clear | |
| 2am | 50°F10°C | 5 mph8 km/h West | Clear | |
| 3am | 50°F10°C | 4 mph7 km/h West | Clear | |
| 4am | 49°F10°C | 3 mph5 km/h West | Clear | |
| 5am | 48°F9°C | 3 mph5 km/h South | Mostly Clear | |
| 6am | 48°F9°C | 3 mph5 km/h Southwest | Mostly Clear | |
| 7am | 48°F9°C | 3 mph5 km/h Southwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 3 | 43°F6°C | 63°F17°C | 5 mph8 km/h from Northwest | Mostly Clear | Mostly Clear |
| April 4 | 47°F9°C | 65°F19°C | 5 mph9 km/h from Northwest | Partly Cloudy | Mostly Cloudy |
| April 5 | 49°F10°C | 68°F20°C | 4 mph6 km/h from Northwest | Partly Cloudy | Mostly Clear |
| April 6 | 48°F9°C | 66°F19°C | 4 mph7 km/h from West | Mostly Cloudy | Cloudy |
| April 7 | 52°F11°C | 63°F17°C | 6 mph10 km/h from West | Partly Cloudy | Mostly Cloudy |
| April 8 | 50°F10°C | 62°F17°C | 8 mph12 km/h from West | Mostly Clear | Mostly Clear |
| April 9 | 52°F11°C | 68°F20°C | 6 mph9 km/h from Northwest | Clear | Partly Cloudy |
Yes
Low of 47°F9°C, High of 65°F19°CWind: 5 mph9 km/h
Precipitation: None