Is Mount Rinjani closed?

Mount Rinjani is closed every year from January 1 until around April 1. This is the official rainy-season closure, put in place because the trails become too dangerous during heavy rain. Landslides, slippery slopes, falling rocks, and extremely poor visibility make trekking unsafe, and the national park uses this period to protect both hikers and the environment. Plants regenerate, wildlife recovers, and the mountain gets a much-needed break from foot traffic.

The mountain reopens around April 1, but the exact date can change depending on weather conditions and national holidays. In some years, opening is delayed by a few days if rain is still heavy or if the trails have not fully dried. Park authorities evaluate safety before announcing the official opening date, and trekking companies confirm schedules as soon as the park gives approval.

Outside of the January to March closure, Mount Rinjani is generally open, although weather can still affect certain routes. Even during the trekking season, sudden rain or strong winds may cause temporary restrictions for safety reasons. Hikers are always advised to check the latest updates from licensed organizers before planning their trek.

If the date falls between April and December, Rinjani is usually open. If it falls between January and March, the mountain is officially closed to all visitors.