Yes

you do need a jacket based on the weather in Bundoran (Drumacrin), County Donegal, Ireland 1 second ago

Why? Because a little drizzle out!
62°F17°C & Drizzle

Wind is 3 mph5 km/h from the South, gusting to 5 mph8 km/h
August 22
11pm62°F17°C4 mph6 km/h SouthCloudy
August 23
12am62°F17°C4 mph6 km/h SouthCloudy
1am62°F16°C4 mph6 km/h SouthCloudy
2am62°F17°C4 mph7 km/h SouthCloudy
3am63°F17°C4 mph6 km/h SouthCloudy
4am64°F18°C4 mph7 km/h SouthCloudy
5am65°F18°C5 mph8 km/h SouthCloudy
6am65°F19°C5 mph9 km/h SouthwestCloudy
7am66°F19°C6 mph9 km/h SouthwestDrizzle
8am66°F19°C5 mph9 km/h SouthwestDrizzle
9am66°F19°C5 mph8 km/h SouthwestDrizzle
10am66°F19°C4 mph6 km/h WestDrizzle
DateLowHighWindDayNight
August 2262°F16°C66°F19°C4 mph6 km/h from SouthwestDrizzleDrizzle
August 2360°F16°C69°F20°C9 mph14 km/h from SouthCloudyMostly Cloudy
August 2460°F15°C72°F22°C17 mph27 km/h from SouthDrizzleDrizzle
August 2555°F13°C62°F16°C16 mph26 km/h from SouthwestDrizzleRain
August 2654°F12°C61°F16°C13 mph20 km/h from SouthwestRainDrizzle
August 2754°F12°C62°F16°C11 mph18 km/h from SouthDrizzleDrizzle
August 2855°F13°C64°F18°C7 mph11 km/h from NorthDrizzleMostly Cloudy

No

Low of 60°F16°C, High of 69°F21°C
Wind: 9 mph14 km/h
Precipitation: 27% rain

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