At a Glance
Compared to this destination's peak season September is Bali at shoulder-season density: hotel rates ease from the August peak and surf and dive lineups thin once the school holidays end. In dry El Niño years, haze from fires elsewhere in Indonesia can drift over in September and October; check IQAir and head for the highlands on bad days.
Bali in September — Travel Guide
By Harry Nara · Last updated
Bali in September offers some of the best conditions of the year, ideal for divers, surfers & value hunters. Expect temperatures of 22–30°C, around 4 days of rain, and medium crowds across the city. Daily budgets typically land around $30–260+ for mid-range travellers. Book three to four weeks ahead for the best mid-range rates and the widest hotel choice.
Contents16 sections
- Weather in Bali in September
- Bali Tourist Levy (Required)
- What to Do in Bali in September
- Getting Around
- Budget & Costs
- Where to Stay in Bali in September
- Food & Dining
- Nightlife
- Shopping
- Culture & Etiquette
- Essential Local Phrases
- Packing List
- Backup Plans
- Safety & Health
- What's New for September 2027
- About This Guide
#Weather in Bali in September
Bali in September averages 22–30°C (72–86°F) with around 4 days of rain, and crowds are medium.
| Measure | September in Bali |
|---|---|
| Daytime high | About 30°C / 86°F |
| Overnight low | About 22°C / 72°F in the south, cooler in the highlands |
| Rain | Rare: about 4 wet days across the month |
| Sunset | 6:18pm on the 1st, 6:14pm by the 30th |
| Diving | Mola mola season at Nusa Penida, with cold upwellings |
| Surf | The west-coast breaks still clean and consistent |
Figures are 1991–2020 normals for Denpasar.
What that actually means for your trip:
- The crowds thin but the weather does not change. International school holidays are over, so beach clubs and temple circuits that needed early starts in August are simply easier.
- It is one of the best diving months. Mola mola season at Crystal Bay runs through the dry months, with September among the strongest for sightings, and visibility is still high.
- The trade winds keep blowing. You get August's conditions with fewer people, which is a rare combination anywhere.
- Rates fall while the weather holds. Hotels ease from their August peak for near-identical days.
Should you come in September? If you can choose any month for Bali, September is a strong candidate: peak-season weather, shoulder-season prices and an island that has just exhaled after two busy months. The caveats are small: occasional haze in dry El Niño years, when smoke from fires elsewhere in Indonesia can drift over, and the fact that the big Balinese festivals of 2027 fall in other months.
#Bali Tourist Levy (Required)
Every foreign visitor entering Bali pays a one-off IDR 150,000 levy, about US$10, regardless of how long you stay. Pay online before arrival at the official Love Bali portal, or at the counters at Ngurah Rai Airport, and keep the QR receipt; it can be checked at the airport and at some tourist sites.
#What to Do in Bali in September
Mola Mola at Crystal Bay
September is one of the best months to dive with the mola mola, the ocean sunfish, at Crystal Bay and other sites off Nusa Penida. The sunfish, Mola alexandrini, can reach two metres across and is among the heaviest bony fish in the world. Cold upwellings in the dry season bring it up from deep water to cleaning stations where small reef fish pick off its parasites, within reach of divers.
Diving specifics:
- Cleaning station depth: usually 20–30m
- Best timing: early boats from Sanur or Padang Bai, to reach the site before the crowds
- Certification: Advanced Open Water is usually required, because of the depth and the currents
- Wetsuit: bring a thick one; the surface may be 28°C but the thermocline can be far colder
- Sightings: the best odds of the year, but never guaranteed
Choose an operator that keeps its distance and bans flash photography, and avoid any that "guarantee" a sighting.
Surfing without the lineups
September at Uluwatu, Bingin and Padang Padang is classic late-dry-season surf: the Indian Ocean swells keep coming and the offshore trade winds keep the faces clean, with fewer people in the water than in July and August.
On the west coast, Balian and Medewi offer long rides with smaller crowds.
Mount Batur sunrise
The dry season gives the best odds for a clear Mount Batur sunrise, and September is still well inside it: on a good morning you can see Lombok's Mount Rinjani and Mount Agung from the summit. The climb takes two to three hours in the dark from the rim villages. Go with a licensed local guide; breakfast at the top is traditionally cooked in the volcano's steam vents.
Sacred Mount Agung is a harder overnight climb and closes for major ceremonies, so check before planning around it.
The Balinese calendar in 2027
The island-wide festival of Galungan falls on Wednesday 11 August 2027 and Kuningan on Saturday 21 August, so in 2027 the decorated penjor poles will be coming down by September. That doesn't make September quiet: every village temple has its own anniversary, its odalan, on the 210-day Balinese calendar, and you may well meet a procession of offerings on the road.
Cycling the rice country
September's dry, warm weather makes cycling through Bali's farming heartland a pleasure.
Operators in Ubud run half-day downhill rides from the Kintamani highlands through villages, rice terraces and temple grounds, almost all downhill, so no particular fitness is needed.
#Getting Around
All travel in Bali begins at Ngurah Rai International Airport near Denpasar. Skip the touts in arrivals and use the official taxi counter, or book a Grab or Gojek ride. There is no train on Bali; everything moves by road.
The most flexible way to sightsee is a private driver for the day, who waits at each stop and knows the lanes; it is well worth it on a multi-stop day.
Scooter rental is popular in Canggu and Ubud, but the rules have tightened, see below.
Digital Arrival Card: Indonesia now requires arrivals to complete a digital arrival card through the official All Indonesia portal shortly before landing, which gives you a QR code for immigration.
#Budget & Costs
| Travel style | Per day | Also in USD |
|---|---|---|
| Budget | IDR 500,000–800,000 | About $30–50 |
| Mid-range | IDR 1,000,000–2,000,000 | About $60–125 |
| Luxury | IDR 4,000,000+ | About $250+ |
September is one of Bali's best-value dry-season months, with peak crowds gone and the weather unchanged. Guesthouses ease from their July and August rates, and at the top end villas have more availability.
Costs worth knowing:
| What | Price |
|---|---|
| Bali tourist levy, one-off | IDR 150,000 |
| Two-tank Nusa Penida dive day | Several times a budget room; compare operators |
| Mount Batur sunrise trek with guide | Check licensed operators' current rates |
| Warung meal | Very low, a few dollars |
- Diving is the one big line. A two-tank day trip to Nusa Penida with boat and gear costs far more than a night's budget accommodation; book with a reputable operator rather than the cheapest.
- Book the best-known villas a few weeks ahead. September is less pressured than August but popular with people who know the island.
- Budget for the levy once. IDR 150,000 per visitor, paid at arrival or online.
#Where to Stay in Bali in September
September is the month the maths finally works in your favour. The dry-season weather is still running, the surf is still clean, but the school holidays have gone and with them the traffic and the peak rates. That changes the calculation: in July you book whatever you can get, in September you can actually choose. The two September draws pull in different directions, though. The mola mola window peaks at Crystal Bay, which means early boats out of Sanur, while the rice country and the last reliable Batur sunrises point inland to Ubud.
- Splurge: Maya Ubud Resort & Spa (Ubud). Set in a green valley above the Petanu River with an infinity pool, a riverside spa and the Peliatan rice terraces on the doorstep, which is the September landscape at its best. A free two-way shuttle runs into central Ubud, so the seclusion does not cost you dinner options.
- Sweet spot: Hyatt Regency Bali (Sanur). A private beach and three pools in tropical gardens on the quiet east coast. Sanur is where the Nusa Penida fast boats leave, so if the sunfish are the reason for the trip, September mornings start with a short walk rather than an hour in a car.
- Budget: Natya Resort Ubud (Ubud). Pool, sun terrace and bike hire on site, a couple of miles out from Ubud Market. September is the best cycling month of the year here, with dry lanes and no crowds, and having the bikes at the door rather than hired in town is the whole point.
September is Bali's value peak: the same weather as August at noticeably lower rates, and enough availability that you can book a few weeks out rather than a few months. It is the month regular visitors quietly keep for themselves. Each link opens Booking.com with September dates already filled in and that property at the top of the results. Nothing is locked in from there: change the dates, switch neighbourhood, or search an entirely different destination in the same visit.
For the other neighbourhoods, and every hotel we have verified across Bali, see our full guide to where to stay in Bali.
Hotel links are affiliate links. We may earn a small commission if you book, at no extra cost to you.
#Food & Dining
Jimbaran seafood at sunset. September's clear skies and calm seas make the Jimbaran beach seafood dinner at its most relaxed. Walk the beach in the late afternoon, look at the ice displays at two or three restaurants, and choose by the quality of the catch rather than the persistence of the host.
The Kedonganan fish market next door shows what's in that day.
Warungs. The small family warungs, with a handful of plastic tables and a menu board, are easy to walk into in September. Look for motorbikes outside and Balinese customers inside, point at what others are eating, and expect a very low bill.
Babi guling, spit-roast pork, and nasi campur, rice with a little of everything, are the dishes to look for.
Kintamani coffee. The volcanic slopes around Kintamani grow arabica that is lighter and fruitier than most Indonesian coffee, and family farms on the way down from the crater rim offer tastings. September's clear mornings give you the full view of the caldera, with Batur's peak above the lake.
#Nightlife
September nightlife eases after the peak season.
The big beach clubs, Potato Head in Seminyak among them, keep their Sunday sessions with more room to move.
In Canggu, the bars of Batu Bolong and Berawa have a more local, long-stay feel once the holiday crowds leave. Ubud is quieter, with live music in a few bars and the traditional dance performances at the palace and temples in the evening.
#Shopping
September vendors see less demand than in July and August and open with more flexible prices.
The Sukawati Art Market, Ubud Market and the silver workshops of Celuk are all worth a visit; go early in the morning, before the heat and the tour buses. Between Ubud and Denpasar, antique and textile dealers sell old masks, ikat and carved wood; ask to see what isn't on display.
#Culture & Etiquette
- Dress for temples: a sarong and sash are required; many temples lend them at the entrance.
- Respect sacred sites: Bali has tightened its rules on behaviour at temples and sacred trees and mountains, with fines for visitors who break them. Don't climb shrines, pose for revealing photos at temples, or step over offerings on the ground.
- Ceremonies are for the community: if you meet a procession, stand aside, and ask before taking close photos.
- At the mola mola sites, keep your distance and never use a flash; disturbed fish dive and the sighting ends for everyone.
#Essential Local Phrases
| Phrase | Bahasa Indonesia | Pronunciation |
|---|---|---|
| Good morning | Selamat pagi | Seh-lah-maht pah-gee |
| Thank you | Terima kasih | Teh-ree-mah kah-see |
| How much? | Berapa harganya? | Beh-rah-pah har-gah-nyah? |
| Too expensive | Terlalu mahal | Ter-lah-loo mah-hal |
| Delicious | Enak | Eh-nak |
| No, thank you | Tidak, terima kasih | Tee-dak, teh-ree-mah kah-see |
| Where is the dive centre? | Di mana pusat selam? | Dee mah-nah poo-sat seh-lam? |
| Is this fresh? | Apakah ini segar? | Ah-pah-kah ee-nee seh-gar? |
#Packing List
- Light summer clothes; September is warm and dry
- A warm layer for Kintamani and the pre-dawn Batur climb
- Reef-safe sunscreen and a rash vest
- A thick wetsuit or a hooded vest for mola mola dives
- A sarong for temples
- Sandals that grip, for village lanes and markets
- A reusable water bottle; Bali has restricted small plastic bottles, and many cafés and hotels offer refills
- A mask such as an N95, in case of haze
- Cash for warungs, markets and boat crews
#Backup Plans
If the mola mola don't appear: Crystal Bay is still a superb dive, with soft corals, turtles and schooling fish, and Manta Point is close by.
If cloud covers Batur's summit: ask your guide the evening before; a cloudy sunrise is atmospheric, but the panorama is the point, and they know the signs.
If haze drifts in: move inland to Ubud, Sidemen or Munduk, and fill the day with a cooking class, the Neka Art Museum or a spa.
If you want to skip the south entirely: base yourself in Amed on the east coast, with snorkelling from the beach, black-sand beaches and the USAT Liberty wreck at nearby Tulamben, one of Bali's best-known dives.
#Safety & Health
September is one of Bali's easiest months: dry roads, lighter traffic after the peak and calm seas on the east and north coasts. The surf beaches of the south and west still have strong currents; swim between the flags where there are lifeguards.
Haze is the September wildcard in dry El Niño years. Monitor IQAir, carry a mask if you have a respiratory condition, and head for the highlands on bad days.
Scooters remain the top cause of injury to visitors: wear a helmet, carry a valid International Driving Permit and check your insurance.
Tap water is not safe to drink; use refills or bottled water.
Dengue risk is lower in the dry season, but use repellent at dusk.
Volcanoes: check the status of Mount Agung and Mount Batur on the government's MAGMA site before climbing.
Emergency: 112. International-standard private hospitals such as BIMC and Siloam have emergency departments in the south.
#What's New for September 2027
- Galungan falls on Wednesday 11 August 2027 and Kuningan on Saturday 21 August, both before September
- The tourist levy is IDR 150,000 per visitor, paid online or on arrival
- The digital arrival card is completed online through the All Indonesia portal before landing
- Scooter rules have tightened: licence, helmet and a licensed rental shop
- Small plastic water bottles are restricted; bring a refillable bottle
#About This Guide
By Harry Nara (founder of WhenToWander), first written in May 2026 and refreshed in October 2026 for September 2027. Climate figures are FAO and Starlings Roost 1991–2020 normals for Denpasar. Facts verified against:
- Love Bali for the tourist levy
- All Indonesia for the digital arrival card
- MAGMA Indonesia for volcano status
- IQAir for air quality
- Galungan and Kuningan dates follow the 210-day Pawukon cycle from 13 January 2027
For the season as a whole, see Bali in the dry season, and for the month that follows, Bali in October.
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Frequently Asked Questions
Is September a good time to visit Bali?
Yes. The dry season continues, with highs around 30°C and only about four rainy days, while the crowds drop after the Australian and European school holidays and hotel rates ease from the August peak. Diving and surfing are at their best. In dry El Niño years, watch for haze from fires elsewhere in Indonesia in September and October.
Is September a good month to see mola mola at Crystal Bay?
Yes, it is one of the best. During the dry season, cold upwellings bring the ocean sunfish up from deep water to cleaning stations off Nusa Penida, usually at 20–30m, so Advanced Open Water certification is normally required. Sightings are never guaranteed; choose an operator that keeps its distance and bans flash.
Does Galungan fall in September 2027?
No. Galungan follows the 210-day Balinese calendar: in 2027 it falls on Wednesday 13 January and again on Wednesday 11 August, with Kuningan ten days later on 21 August. So by September the island-wide festival is over, though village temple anniversaries, odalan, happen all year.
Is haze a risk in Bali in September?
Sometimes. In dry El Niño years, smoke from land fires on Sumatra and Kalimantan can reach Bali in September and October. Check air quality on IQAir before and during your trip; if it is poor, the highlands around Ubud, Sidemen and Munduk usually feel clearer than the south coast, and people with respiratory conditions should carry a mask.
What’s the weather like in Bali in September?
Bali in September typically sees temperatures of 22–30°C with around 4 days of rain across the period. Pack light, breathable layers and strong sun protection — days get genuinely hot.
How much does it cost to visit Bali in September?
Budget-conscious travellers can expect daily costs of $30–260+, covering accommodation, food, and local transport. Flexible dates can save up to 20% compared with peak-week rates.