Most people start to feel cold when the temperature drops below 15°C.
Some people might start feeling cold at 25°C, while might not feel cold until the temperature is much lower.
15°C : Cold
Below 10°C : Considerable cold, and some people may start experiencing discomfort.
Below 5°C : Very cold, exposure can lead to hypothermia if precautions aren’t taken.
All the cold weather can be made worse by wind, which remove heat by air molecules moving across object.