It's a 4 hours drive from the South Rim to the North Rim. The reason that's this part of the park is less visited.
The North Rim is open from mid-May until mid-October and closed in the winter. There are less iconic views but it’s also much less crowded than the South Rim.
The North Rim is only visited by 10% of the Grand Canyon visitors. You might even go in summer as the temperatures are more pleasant due to its higher elevation. Summer days are usually delightfully clear and cool except for the occasional thunderstorms in July and August. May and September are still great months to hike this trail. It's not heavily crowded if you visit in the summer. But still, try to avoid weekends and start your hike early.