Indonesia weather & when to go: May

May overview

May is one of the best months to visit Indonesia: dry, sunny days are the norm, but peak season is still a couple of months away, so you can expect fewer tourists on the beaches, at the temples, watching sunrise from the mountain summits...

Very Good
Not Advised

Annual overview

  Best   Good
  Mixed   Poor
Jan Feb Mar Apr May Jun
Jul Aug Sep Oct Nov Dec

May's weather in detail


May brings smiles across the island of Java as dry season is now in full swing. As with all tropical climates, the odd afternoon shower should not come as a surprise, but days are predominantly sunny, dry and hot with average temperatures in the region of 30°C.

Minimal rainfall means May is an ideal month for climbing Mt Bromo and visiting the Ijen Plateau, although temperatures will be cooler as you climb so we suggest taking warm layers.  

Essentially May is one of the best times of year to visit Java, and with no major holidays on the horizon visitor numbers are fairly low in the popular tourist spots of Yogyakarta and Borobudur.


May is the hottest month of the year in Bali, with dry, sunny weather and average temperatures in the region of 29°C. Dive conditions are excellent; as are conditions for mountain climbing. With no major holidays on the horizon, the island is not overly busy with tourists and hotel prices are fairly low. It's no surprise that May is amongst the most popular months to travel to Bali

Nusa Tenggara (Lombok, Flores, Komodo National Park, Sumba)

May is characterised by dry, sunny days and blue skies throughout the Nusa Tenggara islands, with minimal rainfall and average temperatures of 28°C. It’s another great month for diving off the coast of Lombok, the Gili Islands and in the Komodo National Park and trekking continues on Lombok's Mt Rinjani. 


May in Sulawesi is characterised by hot, sunny days with average temperatures rising slightly to 29°C and the mercury hitting 32°C on occasion. Rainfall can still be expected in Manado and north Sulawesi, but the southern regions are drier as the month goes on. May marks the beginning of excellent conditions for diving in Manado Bay, which continue until October. It is also a beautiful time to be trekking in Maros & Bantimurung, as the rice fields and forests are lush & green following months of rain.


Dry season is well underway across South Sumatra in May, although as with all tropical climates, the odd afternoon shower should not come as a surprise. The northern regions of the island are wetter than the south but rainfall is by no means constant and hot, sunny days are the norm. Average temperatures of 28°C can be expected, with frequent highs of 33°C in Palembang and the south. 


Light rains continue throughout Kalimantan during May, but sunny days are more frequent. The temperature continues to rise and highs of 32-33°C are not uncommon during the day, with warm evening temperatures around 24°C. Humidity levels are also fairly high at this time, especially in the rainforest regions.

West Papua & Raja Ampat

Average day time temperatures remain consistently warm (in the low 30’s) during May throughout Raja Ampat and about 10°C cooler in the Baliem Valley region. However, May sees the arrival of the southeast monsoon across the islands of Raja Ampat and heavier rainfall can be expected in the highlands of the Baliem Valley.   

The Moluccas

Favourable weather conditions continue across the southern islands of Kei and Aru, and the northern islands of Ternate and Tidore in May. The Banda Islands are also enjoying warm (28-30°C), sunny and dry days. The story is different across the central Molucca islands of Ambon and Seram as rainy season kicks in. 

Our recommended journeys

Our Bali & Komodo In Style holiday is full of handpicked moments which make the journeys as engaging as the destinations. Spend time exploring the rural landscape and elaborate temples of central Bali, before journeying eastwards through the Komodo National Park - a biodiverse region of natural wonders - aboard a traditional Indonesian phinisi.

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Key Festivals & Religious Ceremonies

 Wesak Day

Date of birth, enlightenment & nirvana of Buddha. 7th May 2020


Lasting for a month long period, usually falling within June, July or August. Muslims should not eat or drink before sundown each day. 23rd April - 23rd May 2020

 Idul Fitri

Celebrated by Muslims and signifies the end of Ramadan. 24th - 25th May 2020

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