Yes

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

Why? Because it's so gusty, you’re basically doing accidental parkour!

61°F16°C & Cloudy

Wind is 11 mph18 km/h from the Southwest, gusting to 22 mph36 km/h

Date	Low	High	Wind	Day	Night
June 8	53°F12°C	61°F16°C	9 mph15 km/h from Southwest	Cloudy	Drizzle
June 9	56°F13°C	65°F18°C	8 mph13 km/h from West	Drizzle	Partly Cloudy
June 10	53°F12°C	74°F23°C	8 mph13 km/h from Southeast	Mostly Cloudy	Rain
June 11	59°F15°C	67°F20°C	9 mph15 km/h from Southeast	Rain	Drizzle
June 12	57°F14°C	72°F22°C	10 mph16 km/h from Southeast	Drizzle	Rain
June 13	54°F12°C	65°F18°C	12 mph19 km/h from Southwest	Drizzle	Drizzle
June 14	53°F12°C	65°F18°C	12 mph20 km/h from West	Mostly Cloudy	Mostly Cloudy

Low of 56°F14°C, High of 65°F19°C
Wind: 8 mph13 km/h
Precipitation: 45% rain