Yes

you do need a jacket based on the weather in Van Watervlietstraat 35, 2274 JX Voorburg, Netherlands 1 second ago

Why? Because it's not very warm out.
58°F14°C & Partly Cloudy

Wind is 11 mph17 km/h from the SW, gusting to 20 mph32 km/h
July 14
2am59°F15°C11 mph18 km/h SWPartly Cloudy
3am61°F16°C12 mph20 km/h SWPartly Cloudy
4am63°F17°C14 mph22 km/h SWPartly Cloudy
5am64°F18°C14 mph23 km/h SWPartly Cloudy
6am65°F19°C15 mph24 km/h SWPartly Cloudy
7am67°F19°C15 mph24 km/h SWMostly Clear
8am68°F20°C15 mph24 km/h SWMostly Clear
9am69°F20°C15 mph24 km/h WMostly Clear
10am69°F20°C14 mph22 km/h WMostly Clear
11am69°F21°C12 mph20 km/h WMostly Clear
12pm68°F20°C11 mph18 km/h WPartly Cloudy
1pm67°F20°C11 mph17 km/h SWMostly Cloudy
DateLowHighWindDayNight
July 1355°F13°C69°F21°C13 mph21 km/h from SWPartly CloudyPartly Cloudy
July 1457°F14°C75°F24°C5 mph8 km/h from SPartly CloudyRain
July 1561°F16°C70°F21°C15 mph24 km/h from SWDrizzlePartly Cloudy
July 1659°F15°C73°F23°C7 mph12 km/h from WPartly CloudyPartly Cloudy
July 1759°F15°C77°F25°C7 mph12 km/h from SWMostly CloudyPartly Cloudy
July 1860°F15°C69°F21°C12 mph19 km/h from WPartly CloudyPartly Cloudy
July 1959°F15°C71°F22°C8 mph13 km/h from SWMostly CloudyMostly Cloudy

Yes

Low of 57°F14°C, High of 75°F24°C
Wind: 5 mph8 km/h
Precipitation: None

Support This Page