Yes

you do need a jacket based on the weather in Perranporth TR6, UK 1 second ago

Why? Because it's cool. Pleasantly cool, but cool and the wind is offering free, unsolicited face massages!
58°F14°C & Mostly Clear

Wind is 11 mph17 km/h from the Southwest, gusting to 19 mph31 km/h
September 7
6pm57°F14°C10 mph16 km/h SouthwestPartly Cloudy
7pm57°F14°C10 mph16 km/h SouthwestMostly Clear
8pm56°F13°C9 mph15 km/h SouthwestDrizzle
9pm56°F13°C9 mph15 km/h SouthwestDrizzle
10pm56°F13°C9 mph15 km/h SouthwestDrizzle
11pm55°F13°C8 mph13 km/h SouthwestDrizzle
September 8
12am55°F13°C8 mph13 km/h SouthwestDrizzle
1am54°F12°C7 mph12 km/h SouthwestDrizzle
2am54°F12°C7 mph11 km/h SouthwestMostly Clear
3am56°F13°C8 mph13 km/h SouthwestMostly Clear
4am58°F14°C9 mph14 km/h SouthwestDrizzle
5am60°F15°C11 mph17 km/h SouthwestDrizzle
DateLowHighWindDayNight
September 657°F14°C65°F18°C15 mph24 km/h from SouthwestRainDrizzle
September 754°F12°C63°F17°C12 mph19 km/h from SouthwestMostly ClearPartly Cloudy
September 855°F13°C62°F16°C18 mph29 km/h from SouthRainDrizzle
September 957°F14°C63°F17°C16 mph25 km/h from SouthwestDrizzleWindy
September 1055°F13°C60°F15°C22 mph36 km/h from WestDrizzleDrizzle
September 1154°F12°C60°F16°C18 mph29 km/h from WestDrizzleDrizzle
September 1254°F12°C62°F16°C15 mph25 km/h from SouthwestRainDrizzle

Yes

Low of 55°F13°C, High of 63°F17°C
Wind: 12 mph19 km/h
Precipitation: 22% rain

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