Based on the weather in St George, Conwy, United Kingdom as of September 3, 2015 5:27am local time

Why? Because it's not very warm out.
Current Conditions
Mostly Cloudy
Temp: 53.6°F • 12°C
Wind: 12.4 MPH • 20.02 KPH
Precip: 0%

Next 2 hours: Yes

Next 4 hours: Yes

Next 8 hours: Yes