Yes

you do need a jacket based on the weather in Montpellier, France 1 second ago

Why? Because it's cool. Pleasantly cool, but cool.
59°F15°C & Partly Cloudy

Wind is 2 mph4 km/h from the NE, gusting to 5 mph8 km/h
March 19
5am61°F16°C3 mph5 km/h NEPartly Cloudy
6am65°F18°C3 mph6 km/h EPartly Cloudy
7am67°F20°C3 mph5 km/h EPartly Cloudy
8am70°F21°C3 mph5 km/h SEPartly Cloudy
9am71°F22°C4 mph6 km/h SEMostly Clear
10am72°F22°C4 mph7 km/h SMostly Clear
11am71°F22°C5 mph8 km/h SClear
12pm70°F21°C5 mph8 km/h SClear
1pm67°F20°C5 mph9 km/h SWClear
2pm63°F17°C5 mph8 km/h SWClear
3pm60°F15°C4 mph7 km/h WClear
4pm57°F14°C3 mph5 km/h WClear
DateLowHighWindDayNight
March 1850°F10°C72°F22°C4 mph6 km/h from SEMostly ClearMostly Clear
March 1949°F9°C64°F18°C7 mph11 km/h from SECloudyMostly Cloudy
March 2049°F9°C71°F21°C4 mph6 km/h from SWMostly CloudyPartly Cloudy
March 2151°F10°C75°F24°C6 mph9 km/h from SMostly ClearDrizzle
March 2245°F7°C63°F17°C15 mph23 km/h from NWMostly ClearClear
March 2341°F5°C59°F15°C14 mph22 km/h from NWPartly CloudyMostly Clear
March 2440°F4°C59°F15°C6 mph10 km/h from NEPartly CloudyPartly Cloudy

Yes

Low of 49°F10°C, High of 64°F18°C
Wind: 7 mph11 km/h
Precipitation: None

Support This Page