On Earth, rivers are possible because rain and snow deposit water in high places. That water then forms rivers when flowing to lower places.
Would it be possible to have the phenomena of rivers flowing into oceans on a planet where raining and snowing do not happen? If so, under what conditions could that happen?
This question is different from this previous one: The Reality of a River World because the accepted answer there proposes a mechanism through which water does not flow from higher to lower places, but only follows tides. I'd like a mechanism to take water to higher places, from where it can flow and form rivers, but not depending on precipitation.