Yes

you do need a jacket based on the weather in Aberystwyth, UK 19 minutes ago

Why? Because it's so windy, your hat will probably launch into orbit!
64°F18°C & Windy

Wind is 16 mph26 km/h from the South, gusting to 28 mph45 km/h
September 18
2pm63°F17°C16 mph26 km/h SouthWindy
3pm63°F17°C16 mph26 km/h SouthWindy
4pm63°F17°C16 mph26 km/h SouthWindy
5pm63°F17°C16 mph25 km/h SouthWindy
6pm62°F17°C16 mph25 km/h SouthWindy
7pm62°F17°C15 mph24 km/h SouthWindy
8pm62°F17°C15 mph24 km/h SouthCloudy
9pm62°F17°C15 mph24 km/h SouthCloudy
10pm62°F17°C15 mph24 km/h SouthWindy
11pm62°F17°C15 mph24 km/h SouthCloudy
September 19
12am62°F17°C16 mph25 km/h SouthWindy
1am62°F16°C15 mph24 km/h SouthCloudy
DateLowHighWindDayNight
September 1759°F15°C65°F18°C15 mph24 km/h from SouthwestDrizzleWindy
September 1860°F16°C65°F19°C14 mph23 km/h from SouthDrizzleRain
September 1954°F12°C63°F17°C13 mph21 km/h from SouthRainRain
September 2049°F10°C55°F13°C16 mph26 km/h from NorthDrizzleMostly Clear
September 2145°F7°C56°F13°C10 mph16 km/h from NorthMostly ClearMostly Clear
September 2246°F8°C56°F14°C6 mph10 km/h from NorthMostly CloudyPartly Cloudy
September 2346°F8°C58°F15°C6 mph9 km/h from NortheastPartly CloudyMostly Cloudy

No

Low of 60°F16°C, High of 65°F19°C
Wind: 14 mph23 km/h
Precipitation: 48% rain

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