Yes

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

Why? Because some drizzle out there!
61°F16°C & Drizzle

Wind is 3 mph5 km/h from the West, gusting to 7 mph11 km/h
September 19
3pm60°F16°C3 mph4 km/h WestDrizzle
4pm59°F15°C3 mph5 km/h WestDrizzle
5pm59°F15°C4 mph7 km/h WestDrizzle
6pm58°F14°C3 mph5 km/h WestDrizzle
7pm57°F14°C3 mph5 km/h WestDrizzle
8pm57°F14°C3 mph6 km/h NorthwestDrizzle
9pm56°F13°C3 mph6 km/h NorthwestDrizzle
10pm55°F13°C4 mph7 km/h WestDrizzle
11pm54°F12°C5 mph7 km/h NorthwestDrizzle
September 20
12am54°F12°C4 mph7 km/h NorthwestDrizzle
1am53°F12°C5 mph8 km/h NorthwestDrizzle
2am52°F11°C5 mph7 km/h NorthwestDrizzle
DateLowHighWindDayNight
September 1857°F14°C64°F18°C4 mph6 km/h from SouthwestRainDrizzle
September 1949°F10°C60°F15°C9 mph14 km/h from NorthDrizzleDrizzle
September 2043°F6°C57°F14°C12 mph19 km/h from NorthMostly ClearMostly Clear
September 2140°F4°C57°F14°C5 mph8 km/h from NorthMostly ClearPartly Cloudy
September 2242°F5°C58°F14°C4 mph6 km/h from SoutheastPartly CloudyPartly Cloudy
September 2344°F7°C60°F15°C5 mph8 km/h from SouthPartly CloudyMostly Cloudy
September 2447°F9°C60°F16°C9 mph14 km/h from SoutheastMostly CloudyPartly Cloudy

Yes

Low of 49°F10°C, High of 60°F16°C
Wind: 9 mph14 km/h
Precipitation: 86% rain

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