天公不作美

tiāngōngbùzuòměi
  1. Heaven is not cooperating (idiom)
  2. the weather is not favorable for the planned activity

CEDICT

天气不符合人们心中所预期的情况。

重編國語辭典

Entry Composition

1 天公 tiāngōng
  1. heaven
  2. lord of heaven
2 不 bù
  1. no; not so
  2. (bound form) not; un-
3 作美 zuòměi to cooperate; to make things easy; to be favourable