Yes

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

Why? Because there's a refreshing nip in the air.
42°F6°C & Drizzle

Wind is 7 mph12 km/h from the NE, gusting to 16 mph26 km/h
April 27
2am42°F6°C8 mph13 km/h NERain
3am43°F6°C9 mph15 km/h NECloudy
4am45°F7°C11 mph17 km/h ECloudy
5am46°F8°C12 mph19 km/h ECloudy
6am46°F8°C12 mph19 km/h ECloudy
7am47°F8°C12 mph20 km/h NECloudy
8am48°F9°C12 mph19 km/h NECloudy
9am48°F9°C11 mph18 km/h NECloudy
10am49°F9°C11 mph18 km/h NECloudy
11am49°F10°C11 mph17 km/h NECloudy
12pm50°F10°C10 mph17 km/h NECloudy
1pm50°F10°C10 mph16 km/h NECloudy
DateLowHighWindDayNight
April 2642°F6°C50°F10°C11 mph18 km/h from NERainDrizzle
April 2742°F5°C54°F12°C12 mph19 km/h from NWPartly CloudyMostly Cloudy
April 2846°F8°C55°F13°C19 mph31 km/h from SDrizzleRain
April 2948°F9°C54°F12°C17 mph27 km/h from SERainRain
April 3046°F8°C56°F14°C7 mph12 km/h from SEDrizzleMostly Cloudy
May 144°F7°C60°F15°C8 mph13 km/h from NWMostly CloudyDrizzle
May 248°F9°C66°F19°C11 mph18 km/h from EPartly CloudyMostly Clear

Yes

Low of 42°F6°C, High of 54°F12°C
Wind: 12 mph19 km/h
Precipitation: 46% rain

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