Yes

you do need a jacket based on the weather in 1150-258 Lisbon, Portugal 1 second ago

Why? Because it's fairly windy outside!
74°F23°C & Mostly Cloudy

Wind is 10 mph16 km/h from the North, gusting to 20 mph32 km/h
September 23
2pm70°F21°C12 mph19 km/h NorthMostly Cloudy
3pm67°F20°C11 mph18 km/h NorthPartly Cloudy
4pm65°F18°C10 mph16 km/h NorthPartly Cloudy
5pm63°F17°C8 mph13 km/h NorthMostly Cloudy
6pm62°F17°C7 mph12 km/h NorthMostly Cloudy
7pm62°F17°C6 mph10 km/h NorthMostly Cloudy
8pm61°F16°C5 mph9 km/h NorthMostly Cloudy
9pm61°F16°C5 mph8 km/h NorthMostly Cloudy
10pm60°F15°C5 mph8 km/h NorthMostly Cloudy
11pm59°F15°C6 mph9 km/h NortheastMostly Cloudy
September 24
12am58°F15°C6 mph10 km/h NortheastMostly Cloudy
1am58°F15°C6 mph10 km/h NortheastMostly Cloudy
DateLowHighWindDayNight
September 2256°F13°C78°F25°C9 mph14 km/h from NortheastMostly ClearMostly Cloudy
September 2358°F15°C79°F26°C6 mph10 km/h from NortheastMostly ClearClear
September 2458°F14°C79°F26°C5 mph8 km/h from NorthClearClear
September 2557°F14°C77°F25°C4 mph6 km/h from WestMostly ClearMostly Clear
September 2657°F14°C75°F24°C5 mph8 km/h from SouthwestPartly CloudyPartly Cloudy
September 2761°F16°C72°F22°C10 mph16 km/h from SouthwestDrizzleRain
September 2864°F18°C74°F23°C9 mph14 km/h from SoutheastPartly CloudyMostly Cloudy

Yes

Low of 58°F15°C, High of 79°F26°C
Wind: 6 mph10 km/h
Precipitation: None

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