춥다(chup-da, chupda)
Refers to coldness felt strongly enough to make the body shiver due to low temperature.
When to use
Very low temperature, Indoor space without heating, Outdoor winter activity
The nuance
Use ‘춥다’ when the perceived temperature is very low or the cold is strongly felt.
쌀쌀하다(ssal-ssal-ha-da, ssalssalhada)
Used when the temperature is slightly low, giving a cool or chilly feeling.
When to use
Early autumn weather, Slightly windy day, Situation with a cold mood
The nuance
‘쌀쌀하다’ is suitable for slightly chilly or cool weather or to express a cool mood.