Yes

you do need a jacket based on the weather in Tenby, UK 1 second ago

Why? Because it's cool. Pleasantly cool, but cool and it's really really huffing out there!
54°F12°C & Windy

Wind is 24 mph39 km/h from the West, gusting to 40 mph64 km/h
October 24
3pm54°F12°C23 mph37 km/h WestDrizzle
4pm54°F12°C20 mph32 km/h WestDrizzle
5pm53°F12°C14 mph23 km/h WestRain
6pm51°F11°C11 mph18 km/h NorthwestPartly Cloudy
7pm51°F10°C12 mph20 km/h NorthwestMostly Clear
8pm50°F10°C13 mph21 km/h NorthwestMostly Clear
9pm50°F10°C13 mph22 km/h NorthwestMostly Clear
10pm50°F10°C14 mph22 km/h NorthwestPartly Cloudy
11pm50°F10°C14 mph22 km/h NorthwestPartly Cloudy
October 25
12am50°F10°C14 mph23 km/h NorthwestDrizzle
1am51°F11°C15 mph24 km/h NorthwestDrizzle
2am51°F11°C17 mph27 km/h NorthwestDrizzle
DateLowHighWindDayNight
October 2349°F9°C54°F12°C21 mph34 km/h from WestRainDrizzle
October 2449°F9°C52°F11°C21 mph34 km/h from NorthwestWindyWindy
October 2547°F8°C56°F13°C21 mph34 km/h from WestRainWindy
October 2752°F11°C56°F13°C19 mph30 km/h from NorthwestWindyMostly Cloudy
October 2854°F12°C57°F14°C18 mph28 km/h from WestWindyWindy
October 2953°F12°C56°F13°C16 mph26 km/h from SouthDrizzleDrizzle
October 3053°F12°C56°F13°C21 mph34 km/h from SouthRainRain

Yes

Low of 49°F10°C, High of 52°F11°C
Wind: 21 mph34 km/h
Precipitation: None

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