Rinjani Rainy Season Trekking
Mount Rinjani Trekking in November & December – Best Routes, Weather & Safety Tips
Thank you for your interest in hiking Mount Rinjani with Green Rinjani.
As Indonesia moves toward the rainy season, which usually begins in November and continues through December, we’d like to share some honest, experience-based insights to help you plan your trek wisely, safely, and with realistic expectations.
Unlike many mountains that close early in the wet months, Mount Rinjani National Park often remains open until the end of December, allowing adventurers to still enjoy its beauty — as long as they choose the right route and prepare accordingly.
Over the past few years, Indonesia’s climate has become less predictable. While the traditional dry season runs from April to September, short rains can now appear even in August. Because of this, we believe it’s more helpful to share what we truly observe and experience on the mountain, rather than simply stating “the best months to trek.
Our goal is to give you honest recommendations — not just to promote a package, but to ensure that your experience on Rinjani is safe, enjoyable, and meaningful, no matter the season.
Many travelers wonder whether it’s still possible to hike Rinjani during the rainy months — the answer is yes, but with careful preparation and the right route choice. Below, we share everything you need to know before planning your adventure during November and December (Rinjani Rainy Season Trekking)
Understanding the Mount Rinjani Trekking Season
Mount Rinjani’s official trekking season usually runs from April to December.
Between April and October, the weather is generally dry, offering clear skies and good trail conditions. Starting in November through December, Indonesia enters the rainy season, when rain showers and clouds become more frequent.
However, due to climate change in recent years, the weather has become increasingly unpredictable. Even during what used to be the “dry months” like August or September, light rain may still occur — though it rarely disrupts trekking schedules.
Because of these changes, we prefer to share real and honest insights based on what we truly experience on the mountain — not just theory or averages.
Our goal is to help you plan a safe, meaningful, and responsible Mount Rinjani adventure in any season.
Our Honest Recommendations for November & December / Rinjani Rainy Season Trekking
If you plan to trek during November or early December, our top recommendation is the 2-Day 1-Night Senaru Crater Rim trek.
This route is the safest and most comfortable during the rainy season. It’s shorter in duration, involves less elevation gain, and remains accessible even with light rain.
From the rim, you’ll still enjoy stunning views of Segara Anak Lake and Mount Rinjani’s summit — especially if the sky clears after the rain.
It’s a fantastic choice for both beginners and experienced hikers, allowing you to experience Rinjani’s magic with less risk.
Even if the weather changes, our team can easily adjust the schedule to ensure you stay safe and comfortable.
About Summit and Lake Treks During the Rainy Season
The 2 Days 1 Night Summit trek (via Sembalun) and the 3 Days 2 Nights Lake & Hot Spring trek are still possible during the rainy months — but they depend entirely on real-time weather conditions.
During this season, the summit trail from Sembalun can quickly change from dry volcanic sand to a slippery, unstable slope when rain or strong wind hits. The descent to the lake and hot spring can also become muddy, foggy, and more physically demanding, especially when visibility drops.
For this reason, safety always comes first in every trek we organize.
Our experienced local guides are constantly in touch with updated weather and park reports. They carefully observe the trail and cloud patterns before and during the hike to ensure every guest’s comfort and security.
If weather conditions turn unsafe or unpleasant, our team will openly communicate and discuss adjustments with you. In some cases, we may recommend switching to the Senaru Crater Rim program, which remains a safe, scenic, and equally rewarding alternative — offering incredible views of the summit and lake from above, without the risk of slippery or steep terrain.
At Green Rinjani, we believe the mountain is always there for another day — your safety and positive experience matter far more than simply reaching the top.
Longer Trekking Programs ( Rinjani Rainy Season Trekking )
For trekkers seeking a longer adventure — such as the 4-Day 3-Night Summit and Lake trek or the 5-Day 4-Night Sembalun–Torean route — these are best done when the weather is more predictable, typically between June and October.
During November or December, these programs can still be arranged if the forecast looks favorable. However, we only proceed after conducting a thorough weather and safety assessment.
Our flexible approach ensures that every guest’s journey remains safe, comfortable, and enjoyable, even if plans need adjusting.
Summary of Our Honest Recommendations
For the November–December rainy season, here’s what we suggest:
- 2D1N Senaru Crater Rim – Safest and most suitable for light rain. Short, scenic, and perfect for beginners.
- 2D1N Summit (Sembalun) – Possible if the weather is clear; strong wind and slippery gravel may occur.
- 3D2N Lake & Hot Spring – Beautiful experience, but trails can get muddy and visibility reduced by fog.
- 4D3N & 5D4N Treks – Recommended only in stable weather conditions after proper safety checks. More details about Rinjani Trekking Package
At Green Rinjani, we focus on safety, comfort, and eco-friendly trekking.
Our experienced team ensures your experience is not just about reaching the destination but about truly connecting with nature, culture, and the beauty of Lombok.
Beyond Rinjani: Explore More of Lombok with Green Rinjani
Green Rinjani isn’t only about Mount Rinjani trekking — we’re also your trusted local tour and transport organizer for exploring the rest of Lombok Island.
We provide:
Private Lombok transfers from airports, harbors, and hotels — with comfortable vehicles and flexible schedules.
Lombok day tours, including scenic destinations like:
- Pergasingan Hill sunrise in Sembalun
- Sendang Gile and Tiu Kelep waterfalls in Senaru
- Traditional Sasak villages, Lombok beaches, and local viewpoints
Whether you’re relaxing after your trek or exploring the island before your climb, our team ensures a smooth, enjoyable, and memorable experience — from mountain to sea.
Final Words for Rinjani Rainy Season trekking
The rainy season on Mount Rinjani may bring clouds, mist, and the occasional downpour — but it also reveals a completely different side of the mountain.
During this time, the hills turn greener, waterfalls flow stronger, and the air feels cool, fresh, and peaceful — far from the busy crowds of the dry months.
With proper preparation, flexible planning, and the guidance of experienced local guides, trekking Rinjani in November or December can still be a safe, enjoyable, and truly unforgettable experience.
You might not always see clear blue skies, but you’ll witness a more authentic and quiet version of Rinjani — one that few travelers ever experience.
At Green Rinjani, your safety and comfort are always our top priorities.
We constantly monitor trail and weather conditions, and when necessary, our guides may adjust or shorten the itinerary to keep every trekker safe.
These changes are made purely for safety reasons, and we sincerely appreciate your understanding when adjustments are required.
Please note that, as stated in our Trekking Terms & Conditions,
there is no refund if you choose to return early or discontinue the trek for any reason — including personal health, fitness level, or weather conditions — once the trek has started.
This policy exists because all logistics, equipment, guide services, and National Park permits are arranged and confirmed before your hike begins.
We also wish to emphasize that weather on Mount Rinjani cannot be predicted or guaranteed.
Our entire article — including all recommendations above — is written based on real experience and field observations from our local guides and guests over many years.
Rain, cloud cover, or wind conditions can change rapidly, and while we always strive to provide accurate advice, the final decision to trek during the rainy season is entirely up to you.
If you choose to hike during this period, we promise to do everything possible to make your journey safe, comfortable, and memorable.
Contact Green Rinjani today for real-time weather updates, honest advice, and personalized trekking recommendations.
Your safety, comfort, and satisfaction always come first.