Yes

you do need a jacket based on the weather in Kilkenny, Ireland 1 second ago

Why? Because sorry, it's too cool for just a hoodie!
54°F12°C & Cloudy

Wind is 9 mph15 km/h from the Southeast, gusting to 17 mph28 km/h
October 20
12am54°F12°C10 mph16 km/h SoutheastDrizzle
1am54°F12°C10 mph16 km/h SoutheastRain
2am54°F12°C8 mph13 km/h EastRain
3am53°F12°C8 mph13 km/h EastRain
4am53°F12°C7 mph12 km/h EastDrizzle
5am53°F12°C6 mph9 km/h NortheastDrizzle
6am53°F11°C5 mph8 km/h NortheastCloudy
7am52°F11°C6 mph10 km/h NorthCloudy
8am53°F11°C8 mph12 km/h NorthCloudy
9am53°F12°C10 mph15 km/h NorthCloudy
10am54°F12°C12 mph19 km/h NorthCloudy
11am55°F13°C12 mph20 km/h NorthwestMostly Cloudy
DateLowHighWindDayNight
October 1952°F11°C58°F14°C11 mph17 km/h from NorthwestMostly CloudyMostly Cloudy
October 2047°F9°C56°F13°C14 mph22 km/h from WestMostly CloudyPartly Cloudy
October 2142°F6°C54°F12°C5 mph8 km/h from SoutheastRainRain
October 2243°F6°C50°F10°C15 mph24 km/h from NorthwestDrizzleDrizzle
October 2343°F6°C52°F11°C17 mph27 km/h from WestWindyMostly Cloudy
October 2441°F5°C50°F10°C12 mph20 km/h from NorthwestMostly CloudyDrizzle
October 2541°F5°C52°F11°C9 mph14 km/h from WestDrizzleDrizzle

Yes

Low of 47°F9°C, High of 56°F14°C
Wind: 14 mph22 km/h
Precipitation: None

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