Yes

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

Why? Because it's cool. Pleasantly cool, but cool!
56°F13°C & Cloudy

Wind is 7 mph11 km/h from the South, gusting to 14 mph23 km/h
November 6
6pm56°F13°C7 mph12 km/h SouthCloudy
7pm55°F13°C8 mph13 km/h SouthCloudy
8pm55°F13°C9 mph14 km/h SouthCloudy
9pm55°F13°C9 mph15 km/h SouthCloudy
10pm55°F13°C10 mph16 km/h SouthCloudy
11pm54°F12°C10 mph16 km/h SouthCloudy
November 7
12am54°F12°C10 mph16 km/h SouthDrizzle
1am54°F12°C9 mph15 km/h SouthCloudy
2am53°F12°C9 mph14 km/h SouthCloudy
3am53°F12°C8 mph13 km/h SouthCloudy
4am53°F11°C9 mph15 km/h SoutheastCloudy
5am53°F11°C11 mph17 km/h SoutheastDrizzle
DateLowHighWindDayNight
November 654°F12°C57°F14°C8 mph13 km/h from SouthMostly CloudyRain
November 748°F9°C57°F14°C12 mph19 km/h from SouthRainPartly Cloudy
November 847°F8°C54°F12°C11 mph18 km/h from SouthwestDrizzleRain
November 945°F7°C55°F13°C10 mph15 km/h from SouthwestRainDrizzle
November 1044°F7°C53°F12°C10 mph16 km/h from SouthRainRain
November 1149°F10°C55°F13°C24 mph38 km/h from SouthRainRain
November 1249°F9°C56°F13°C12 mph19 km/h from SouthRainMostly Cloudy

Yes

Low of 47°F9°C, High of 57°F14°C
Wind: 12 mph19 km/h
Precipitation: 89% rain

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