Bali in September: Dry Weather, Thinner Crowds and What to Do

Is September a good time to visit Bali?

September is one of the best months of the year to visit Bali, and it is the month many people who live here would choose for their own friends. The dry season is still in full swing, with very little rain, breezy evenings and clear water, but the European summer crowds have gone home and prices start to slip back from their July and August peak. The only real catch comes at the end of the month, when the Australian spring school holidays begin and family areas fill up again.

If you can, travel in the first three weeks. You get almost everything August offers, for less money and with more room at the viewpoints.

The weather: dry, breezy and clear

Long-term averages for the airport station near Kuta put September at around 29°C by day and 24°C at night, with only about 30 mm of rain on roughly three days. That makes it, alongside August, one of the two driest months of the year.

The southeasterly trade winds that blow through the dry season keep the air fresher than in the sticky months on either side. Evenings on the coast are comfortable for dinner outside, and nights in the highlands are properly cool. On the summit of Mount Batur before dawn, or in Munduk and Bedugul after dark, you will want a fleece.

The sea is at its coolest of the year, generally around 26 to 27°C, which is still warm for swimming but brings upwelling to the waters off Nusa Penida. That is good news for divers: cooler water is what draws the oceanic sunfish, or mola mola, up from the deep. Visibility on the east coast reefs and around Menjangan in the northwest is usually excellent.

After a long dry season, some waterfalls are lower than in the photos and rice terraces may be in a harvest or fallow phase rather than bright green. Ask your driver which terraces are freshly planted that week.

Crowds and prices

September splits neatly in two. Europe's school holidays end in late August or early September, and the following weeks are some of the most pleasant of the year to be on the island: open roads, good availability and shoulder-season rates.

Then the Australian spring holidays arrive. In 2026 they started on September 19 in Victoria, Queensland and the Northern Territory, September 26 in Western Australia, South Australia and the ACT, and September 28 in New South Wales. Expect a similar pattern in 2027, and check the state calendars before you book. Kuta, Seminyak, Nusa Dua and Sanur feel it most; Ubud, Sidemen and the north far less.

There are no Indonesian national holidays in September in either 2026 or 2027, so domestic travel stays light all month.

Ceremonies in September 2027

Galungan falls on August 11, 2027, with Kuningan on August 21, so if you arrive in early September 2027 you may still see the tall penjor bamboo poles curving over village roads; they usually stay up for a couple of weeks after Kuningan.

Later in the month comes Tumpek Krulut on Saturday, September 25, 2027, a day honoring music and the arts. Gamelan sets, masks and dance costumes receive offerings, and in some villages the orchestras play in the temple courtyards. In 2026 the September holy day was Tumpek Kandang on September 5, when animals and livestock are blessed; its next date is October 30, 2027.

Beyond these, odalan temple anniversaries happen somewhere every day. Dry-season evenings are also the best time to watch the Kecak fire dance at Uluwatu Temple, when sunsets are reliably clear.

What to do in Bali in September

September is the month to do the things that depend on good weather.

• Dive or snorkel off Nusa Penida. Manta rays are present year-round at Manta Point, and August and September give the best odds for mola mola at Crystal Bay. The fish usually sit deep, so you need at least an advanced certification and a good operator, and sightings are never guaranteed.
• Climb Mount Batur. Clear skies give you the best chance of a proper sunrise over Mount Agung and Lake Batur. Pack a warm layer for the summit.
• Go north and west. The dry season is the time for the waterfalls and clove hills around Munduk, the snorkeling at Menjangan Island and the quiet beaches of Pemuteran.
• Surf the Bukit. The southwest swells and offshore trade winds make September a strong month at Uluwatu, Padang Padang and Bingin, mostly for experienced surfers.
• Explore the east. Lempuyang, Tirta Gangga and the black-sand coves of Amed are easiest to reach while roads are dry; start early to beat the queues at Lempuyang's famous gate.

What to pack for September

• Light clothes for the day, plus a fleece or light jacket for highland evenings and Batur.
• A rash guard or thin wetsuit if you plan to dive or snorkel for long; the cooler water is noticeable.
• Reef-safe sunscreen, a hat and sunglasses; dry-season sun is strong.
• Proper hiking shoes or trail sandals for volcanoes and waterfall paths.
• A sarong and sash for temples, especially if you plan to see Kecak at Uluwatu.

You can leave the heavy rain gear at home this month. See our Bali packing list for the rest, and the best time to visit Bali for how September stacks up against the other months.