It is always rainy. It always rains.

必须开学时候的天气是下雨。

youdao

It always rains, so it is wet everywhere.

春天经常下雨，所以到处都是湿的。

youdao

It always rains in summer in our hometown.

在我们的家乡总是下雨在夏天。

youdao

It rains sometimes, but it's usually pretty warm. Always above 60 ˚F for the most part.

虽然有时也下雨，但大部分时间很温暖，温度都在60华氏度以上。

纽约和洛杉矶不一样 - SpeakingMax英语口语达人

"It always rains when the Aranui arrives, " said our driver, one of many locals who ferried cruise passengers deep into the rainforest, passing the 350m-high Vaipo Waterfall, the largest in the South Pacific, on the way.

BBC: A cruise to hidden Polynesia