Yes

you do need a jacket based on the weather in Carbis Bay, Saint Ives TR26, UK 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it and it's windy enough to give you a brand new hairdo!
57°F14°C & Mostly Cloudy

Wind is 13 mph21 km/h from the Southwest, gusting to 24 mph38 km/h
November 7
1pm57°F14°C15 mph24 km/h WestWindy
2pm57°F14°C15 mph24 km/h WestWindy
3pm57°F14°C15 mph24 km/h WestPartly Cloudy
4pm56°F13°C14 mph22 km/h WestPartly Cloudy
5pm55°F13°C12 mph19 km/h WestMostly Clear
6pm54°F12°C11 mph18 km/h WestPartly Cloudy
7pm54°F12°C11 mph18 km/h WestMostly Clear
8pm54°F12°C12 mph19 km/h WestMostly Clear
9pm53°F12°C12 mph19 km/h WestMostly Clear
10pm53°F12°C12 mph20 km/h WestMostly Clear
11pm53°F12°C13 mph21 km/h WestMostly Clear
November 8
12am53°F12°C12 mph19 km/h WestMostly Clear
DateLowHighWindDayNight
November 753°F12°C57°F14°C15 mph24 km/h from SouthwestRainMostly Clear
November 851°F11°C56°F13°C9 mph15 km/h from SouthwestPartly CloudyWindy
November 953°F12°C57°F14°C17 mph28 km/h from SouthRainDrizzle
November 1051°F11°C54°F12°C16 mph25 km/h from SouthwestRainRain
November 1153°F12°C57°F14°C30 mph48 km/h from SouthRainRain
November 1254°F12°C57°F14°C16 mph26 km/h from SouthDrizzleDrizzle
November 1354°F12°C58°F14°C18 mph29 km/h from SouthWindyRain

Yes

Low of 51°F11°C, High of 55°F13°C
Wind: 9 mph15 km/h
Precipitation: None

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