Waited for the rain to stop

He peered through the rain, but he could not see the road (well).

(i) He continued cycling until he reached the bus stop. He waited at the bus stop until the rain stopped.

(ii) He continued cycling until he reached the bus stop. He waited there for the rain to become less.

(ii) He had to stop at the bus stop and wait for the rain to stop.

(iii) He waited at the bus stop until the rain (It) became small / less.

Which combination is correct? How do I correct them?

(i) He continued cycling until he reached the bus stop. He waited at the bus stop until the rain stopped.-- OK

(ii) He continued cycling until he reached the bus stop. He waited there for the rain to slacken.

(ii) He had to stop at the bus stop and wait for the rain to stop.-- OK

(iii) He waited at the bus stop until the rain let up.