No
you don't need a jacket based on the weather in Cardiff, UK 1 second ago
66°F19°C & Mostly Cloudy
Wind is 1 mph2 km/h from the N, gusting to 9 mph14 km/h
| May 18 | ||||
| 11am | 66°F19°C | 2 mph4 km/h N | Rain | |
| 12pm | 65°F18°C | 4 mph7 km/h NW | Rain | |
| 1pm | 64°F18°C | 4 mph6 km/h NW | Mostly Cloudy | |
| 2pm | 64°F18°C | 3 mph5 km/h N | Partly Cloudy | |
| 3pm | 62°F17°C | 5 mph7 km/h N | Mostly Cloudy | |
| 4pm | 61°F16°C | 5 mph9 km/h NE | Mostly Cloudy | |
| 5pm | 60°F15°C | 6 mph9 km/h NE | Cloudy | |
| 6pm | 59°F15°C | 6 mph9 km/h NE | Mostly Cloudy | |
| 7pm | 58°F14°C | 5 mph9 km/h NE | Partly Cloudy | |
| 8pm | 58°F14°C | 5 mph8 km/h NE | Mostly Clear | |
| 9pm | 57°F14°C | 6 mph9 km/h NE | Mostly Clear | |
| 10pm | 56°F13°C | 6 mph10 km/h NE | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 17 | 52°F11°C | 69°F20°C | 3 mph5 km/h from NE | Rain | Rain |
| May 18 | 52°F11°C | 70°F21°C | 9 mph15 km/h from NE | Clear | Clear |
| May 19 | 52°F11°C | 68°F20°C | 9 mph15 km/h from NE | Clear | Mostly Clear |
| May 20 | 49°F10°C | 66°F19°C | 5 mph8 km/h from NE | Partly Cloudy | Rain |
| May 21 | 52°F11°C | 66°F19°C | 8 mph14 km/h from NW | Rain | Mostly Cloudy |
| May 22 | 51°F11°C | 63°F17°C | 9 mph14 km/h from NW | Drizzle | Mostly Cloudy |
| May 23 | 48°F9°C | 62°F17°C | 9 mph14 km/h from NW | Mostly Cloudy | Partly Cloudy |
Yes
Low of 52°F11°C, High of 70°F21°CWind: 9 mph15 km/h
Precipitation: 3% rain