No

you don't need a jacket based on the weather in Athens, Greece 29 minutes ago

62°F17°C & Mostly Clear

Wind is 6 mph9 km/h from the Southwest, gusting to 12 mph20 km/h
January 10
9am62°F17°C5 mph8 km/h SouthwestClear
10am60°F16°C4 mph6 km/h SouthwestClear
11am58°F15°C3 mph5 km/h SouthwestClear
12pm57°F14°C3 mph5 km/h SouthClear
1pm55°F13°C2 mph4 km/h SouthPartly Cloudy
2pm55°F13°C2 mph4 km/h SouthwestMostly Cloudy
3pm54°F12°C3 mph4 km/h WestMostly Clear
4pm54°F12°C3 mph5 km/h WestPartly Cloudy
5pm53°F11°C3 mph4 km/h NorthwestPartly Cloudy
6pm52°F11°C3 mph4 km/h NorthwestPartly Cloudy
7pm52°F11°C3 mph4 km/h NorthwestPartly Cloudy
8pm51°F11°C2 mph4 km/h NorthwestMostly Clear
DateLowHighWindDayNight
January 951°F11°C63°F17°C3 mph5 km/h from SouthwestMostly ClearPartly Cloudy
January 1049°F9°C61°F16°C3 mph5 km/h from SouthwestPartly CloudyPartly Cloudy
January 1149°F9°C62°F17°C3 mph4 km/h from SoutheastDrizzleRain
January 1247°F8°C54°F12°C8 mph13 km/h from NorthDrizzleCloudy
January 1343°F6°C50°F10°C9 mph14 km/h from NorthMostly CloudyMostly Clear
January 1440°F4°C52°F11°C2 mph3 km/h from NorthMostly ClearMostly Cloudy
January 1542°F6°C50°F10°C7 mph11 km/h from NorthMostly CloudyMostly Clear

Yes

Low of 49°F10°C, High of 62°F17°C
Wind: 3 mph5 km/h
Precipitation: None

Support This Page