阴天
阴天 (yīntiān) means "cloudy day" or "overcast day" and describes weather when the sky is covered with clouds and the sun is not visible. It is a compound of 阴 (overcast/cloudy) and 天 (day/sky). This word is commonly used in weather descriptions and daily conversation.
今天是阴天,可能下午会下雨。
Jīntiān shì yīntiān, kěnéng xiàwǔ huì xià yǔ.
It's overcast today — it might rain this afternoon.
连续好几天阴天,心情都不太好。
Liánxù hǎo jǐ tiān yīntiān, xīnqíng dōu bú tài hǎo.
It's been overcast for several days in a row, and my mood hasn't been great.
阴天出门不用戴墨镜。
Yīntiān chūmén bú yòng dài mòjìng.
You don't need to wear sunglasses when going out on a cloudy day.