Yes

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

Why? Because it's pretty chilly and the wind is offering free, unsolicited face massages!

53°F12°C & Mostly Clear

Wind is 12 mph19 km/h from the Northeast, gusting to 21 mph34 km/h

Date	Low	High	Wind	Day	Night
May 3	45°F7°C	59°F15°C	13 mph20 km/h from Northeast	Partly Cloudy	Partly Cloudy
May 4	42°F5°C	58°F15°C	15 mph24 km/h from Northeast	Mostly Cloudy	Mostly Clear
May 5	42°F6°C	58°F15°C	10 mph15 km/h from Northeast	Partly Cloudy	Mostly Clear
May 6	43°F6°C	60°F16°C	9 mph14 km/h from Northeast	Mostly Cloudy	Mostly Cloudy
May 7	46°F8°C	61°F16°C	10 mph17 km/h from Northeast	Mostly Cloudy	Mostly Clear
May 8	47°F8°C	63°F17°C	13 mph21 km/h from East	Mostly Clear	Mostly Clear
May 9	48°F9°C	66°F19°C	12 mph20 km/h from East	Mostly Clear	Partly Cloudy

Low of 42°F6°C, High of 58°F15°C
Wind: 15 mph24 km/h
Precipitation: None