very good weather
It's a Chinese idiom, sh í f ē NGW ǔ y ǔ, which means it's windy every ten days and rainy every five days. It describes a good weather and a suitable climate. From Lun Heng Shi Ying.
The origin of Idioms
In Wang Chong's Lun Heng Shi Ying of the Han Dynasty, "the wind does not sing, the rain does not break, there is a wind in five days, and there is a rain in ten days."
Idiom usage
It's a good time to have a good weather. Lu You's poem "village in early summer" in Song Dynasty
very good weather
confusion and disorder of state affairs - tiáo táng fèi gēng
the continuation is only held by a silken thread - bù jué rú dài