"The rainy season is the season of the cold."
Translation:Musim hujan musim pilek.
"Pilek" doesn't refer to the temperature... "Pilek" is the symptom of running nose. You can use "pilek" when you have a cold or allergic (i.e. medical contexts), but you can't when a sad story makes you cry or when you are chopping an onion. -- These explanations are based on answers from Indonesian speakers. https://hinative.com/questions/18264021