Yes

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

Why? Because a little drizzle out and just cool enough for a jacket, but not warm enough to ditch it and it's so gusty, you’re basically doing accidental parkour!
55°F13°C & Drizzle

Wind is 10 mph16 km/h from the Southeast, gusting to 19 mph31 km/h
September 14
5am56°F14°C12 mph20 km/h SoutheastRain
6am58°F14°C14 mph23 km/h SoutheastRain
7am58°F15°C18 mph28 km/h SoutheastDrizzle
8am60°F15°C22 mph36 km/h SoutheastDrizzle
9am61°F16°C21 mph33 km/h SoutheastRain
10am63°F17°C15 mph24 km/h SouthDrizzle
11am65°F19°C11 mph18 km/h SouthwestDrizzle
12pm65°F18°C14 mph22 km/h SouthwestDrizzle
1pm63°F17°C15 mph24 km/h SouthwestMostly Clear
2pm62°F16°C13 mph20 km/h SouthwestMostly Clear
3pm60°F15°C12 mph20 km/h SouthwestPartly Cloudy
4pm58°F15°C12 mph19 km/h SouthwestMostly Clear
DateLowHighWindDayNight
September 1350°F10°C66°F19°C14 mph22 km/h from SouthRainDrizzle
September 1453°F12°C61°F16°C24 mph38 km/h from WestDrizzleWindy
September 1551°F10°C61°F16°C12 mph19 km/h from WestDrizzleRain
September 1656°F13°C66°F19°C14 mph23 km/h from WestDrizzleMostly Cloudy
September 1752°F11°C64°F18°C8 mph13 km/h from SouthwestPartly CloudyMostly Cloudy
September 1852°F11°C64°F18°C9 mph14 km/h from SouthDrizzleDrizzle
September 1954°F12°C63°F17°C8 mph13 km/h from SouthwestRainDrizzle

Yes

Low of 54°F12°C, High of 61°F16°C
Wind: 24 mph38 km/h
Precipitation: 70% rain

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