YOU SAID:

I plan to go to a wedding in May, but only if the weather is fair.

INTO JAPANESE

私は5月に結婚式に行くつもりですが、天気が良いときだけです。

BACK INTO ENGLISH

I plan to go to a wedding ceremony in May, but only when the weather is nice.

INTO JAPANESE

私は5月に結婚式に行く予定ですが、天気が良いときだけです。

BACK INTO ENGLISH

I plan to go to a wedding ceremony in May, but only when the weather is nice.