Get In Touch With Bas Trekker
Frequently Asked Question! (Mount Rinjani National Park)

Mount Rinjani (Indonesian : Gunung Rinjani ) is an active volcano in Indonesia on the island of Lombok. Administratively the mountain is in the Regency of North Lombok, West Nusa Tenggara (Indonesian: Nusa Tenggara Barat, NTB). It rises to 3,726 metres (12,224 ft), making it the second highest volcano in Indonesia. It is also the highest point in the Indonesian province of West Nusa Tenggara.
Mount Rinjani trekking is open for trekking only 9 months each year, from April until December
Mt Rinjani National Park closes from the 1st of January to March due to heavy rains during the monsoon season. In fact, almost all year round it is possible to trek due to the tropical climate that Lombok has, unless the volcano on Mt Rinjani has been unusually active. The National Park authority will send us notifications about the current activity level of the volcano, so we will keep you apprised of any changes in volcanic activity as needed
May to October is the best period to climb Mount Rinjani because of the dry season. However, as global climate changes, there is no best time to climb based on the past four years. Before you come please check the weather forecast first. The best of our experience last 4 years if is rainy during this period normally still safe to hike because rain is not rainy all day.
Before checking in at the Mount Rinjani National Park office on the first day, all participants are required to do a health check-up, so that all climbers have themselves medically checked before attempting any mountain climbing.
If you are pregnant or have a history of the following diseases, it is strongly recommended that you avoid climbing: Hypertension, Diabetes, Heart palpitations, Arthritis, Heart Disease, Severe Anemia, Stomach Ulcers, Epilepsy Attacks, Obesity (Excess Weight), Chronic Asthma, Cramps Muscles, Hepatitis (Jaundice); or other diseases that can hinder climbers. You know your body best!
- The temperature in the morning before sunrise at the summit of Mount Rinjani (3726m) drops to freezing 0 °C – 3 °C
- Mount Rinjani crater rim, during the night ( 2,639m) 8-10˚C,
- Senaru crater rim ( 2641m ) 8-10˚C,
- Lake and Torean and camp area 8-12 ˚
- Day time: almost in every place: 28 – 35˚
Yes. Apart from ‘Act of God’ incidents, as long as you listen to your mountain guide’s instructions and stay on the track, there is less risk of suffering any injury and/or accident. There are reported incidents where climbers lost their way, injured themselves, or lost their lives on the mountain, but note that these usually happen when they leave the marked trail on their own and/or deviate from their group. In this case, we recommend you use a professional trekking team.
2 days Sembalun trek is a perfect option if you want to visit Peak Rinjani. The Sembalun Route is one of the closest trekking routes to the peak of Mount Rinjani. The route 100% savanna from the starting point to crater Rim Sembalun.
The 2 days 1-night Senaru trekking program is recommended if you prefer to enjoy the views of Segara Anak. The route from Senaru is 80% through rainforest which means walking among the shadows of the trees.
Both 3-day 2-night trekking program is recommended to you if you would like to explore all parts of Mount Rinjani.
Start from Sembalun village you will see:
- Enjoy the Savanna on the first day
- Climb the summit and Enjoy the lake on the second day.
- Passed rain forest on the third day.
Start from Senaru village you will see:
- Passed 80% rainforest on the first day
- Enjoy Segara Anak Lake and hot spring water on the second day
- Climb the summit and pass the savanna on the third day.