Vacaay

Mount Mulu

About Mount Mulu

Mount Mulu is a beautiful sandstone and shale mountain in northeastern Sarawak that serves as the heart of Gunung Mulu National Park. Standing at 2376-meters tall, it is the second highest mountain the Malaysian state. The national park at its base offers forest treks that let you explore the majestic karst features near the mountain’s summit.

When to visit

The best time to visit Mount Mulu in Sarawak is during the dry season, from June to September, for pleasant weather and optimal trekking conditions.

Most popular: June - September

Spring · Mar, Apr, May

Spring at Mount Mulu is a time of rejuvenation and vibrant life. As the rainy season begins to wane, the lush rainforests of this UNESCO World Heritage site burst into life. Visitors can expect a pleasant mix of sunshine and occasional showers, making it an ideal time for exploring the famous caves like Deer Cave and Lang's Cave. The cooler temperatures and higher humidity are perfect for trekking through the verdant rainforests, offering a chance to witness the blooming of exotic flowers and the vibrant greenery. Birdwatchers will be delighted as this season brings an abundance of avian activity, making it an excellent time for birding.

Summer · Jun, Jul, Aug

Summer at Mount Mulu is characterized by its hot and relatively drier weather. This season is perfect for those looking to explore the mountain's unique geological formations, including the Pinnacles, a series of razor-sharp limestone spikes that tower above the surrounding vegetation. The clear skies and longer days provide ample opportunity for extended hikes and outdoor activities. It's also an ideal time for visiting the Sarawak Chamber, one of the world’s largest enclosed spaces, accessible by a challenging but rewarding trek. However, visitors should be prepared for the heat and occasional heavy downpours, typical of tropical climates.

Autumn · Sep, Oct, Nov

Autumn brings a more tranquil and serene experience at Mount Mulu. The end of the peak tourist season means fewer crowds, allowing for a more intimate connection with nature. The weather remains warm, but the onset of the wet season brings more frequent rain showers, especially in the late afternoons. The rainforest comes alive with the sounds of rushing streams and waterfalls, adding to the mystical ambiance of the area. This season is ideal for those interested in experiencing the rich biodiversity of the area, as the rain encourages a surge in wildlife activity, including the nightly exodus of bats from the caves.

Winter · Dec, Jan, Feb

Winter is the wettest season at Mount Mulu, offering a unique perspective of the rainforest. The heavy rains transform the landscape into a lush, verdant paradise, with rivers and waterfalls at their most majestic. While this season may challenge trekkers with slippery trails and limited visibility, it also provides a rare opportunity to see the rainforest in its most natural and untamed state. The cooler temperatures during this time are a welcome relief from the usual heat. It's a perfect season for those who don't mind getting a bit wet and are eager to embrace the full experience of a tropical rainforest.

Weather Highlights

  • Summer high

    31°C / 88°F

  • Winter low

    23°C / 73°F

  • Rain

    245 days

  • Snow

    0 days

Location

Getting There

Mount Mulu is quite difficult to reach, given its remote location. Visitors will need to take a flight from Kuching to Mulu, and then travel 45-minutes by road to reach the base of the mountain.

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