Rain and rainbow

この雨はわるいがです(or you can say: よく ありません instead of わるいです)が、しかしにじは美しいがです。これは尾浮名大きい(I guess you mean it's large. Is that right?)です。

Good work!

In Japan we have a rainy season at the middle of June, then the weather is usually humid. But we sometimes observe a rainbow, it's always beautiful.