Chart for every month of the year
Best time to climb Mount Batur, month by month
The answer in a line
The best time to hike Mount Batur is the dry season, which Indonesia.travel gives as April to October, though the geopark counts April and May as rainy.
Season notes
A year on the volcano
Season by season on Mount Batur
Choose a month to see how the two official calendars and the guides describe it.
Sunset
Apr
- The sun sets near 18:17
- Hours of daylight, about 11.9 h1
- Source verdict: Dry nationally, rainy by the geopark1,2
The national site calls April dry, the geopark counts it as rainy.1,2
May
- The sun sets near 18:07
- Hours of daylight, about 11.7 h1
- Source verdict: Dry nationally, rainy by the geopark1,2
The national site calls May dry, the geopark counts it as rainy.1,2
Jun
Sep
Oct
Dry on both calendars.1
Dec
Seasons: Indonesia.travel's national calendar and the Batur geopark's own website; crowds: a guides' association head quoted by ANTARA. Sunset and day length are worked out by us for the summit's coordinates.
The dry season is the better bet, but official sources disagree on where it starts and ends. Here is what each says, when the mountain is busiest and how rain changes the climb.
Editorial team, mountbatursunrisehike.top · Updated November 2, 2026 · 6 minutes to read
Key points in a row
- Dry seasonIndonesia.travel gives April to October for Java and Bali.1
- Rainy seasonThe Batur geopark's own site gives December to May as its rainy months.2
- Busiest monthsA guides' association head says climbers crowd the summit from July to September.3
- QuietestForeign climbers fall in number in the rainy season.4
- Cold all yearSummit temperatures can fall below 15 degrees Celsius.5
Dry season, wet season and the volcano
Bali has two seasons rather than four, and Mount Batur follows them. The geopark's own website says the Lake Batur area has a tropical climate with a rainy season that arrives with the West Monsoon and a dry season that comes with the East Monsoon.6 For a hiker the difference is simple: dry months give firmer footing and better odds of an open sky at dawn, and wet months give mud, cloud and cancellations.
Indonesia's tourism site gives the national picture. Across Java and Bali it puts the dry months from April to October and the wet months from November to March, with a caution that global warming has made the pattern harder to predict.1 That caution matters. A calendar tells you what usually happens, and a given year can start the rains early or let the dry season run on.
The weather agency BMKG shows how a single year can differ from the average. Its forecast of March 2026 predicted that the dry season would start earlier than the climatological average across Java, Bali and Nusa Tenggara, and that dry conditions would dominate all of Bali in August.7,8 Treat the seasons as odds, not guarantees, and keep a spare morning in your plan.
Every month at a glance
Season by month on both calendars
| Month | Indonesia.travel | Geopark | Crowds |
|---|---|---|---|
| January | Wet | Rainy | Fewer foreign climbers |
| February | Wet | Rainy | Fewer foreign climbers |
| March | Wet | Rainy | Fewer foreign climbers |
| April | Dry | Rainy | No word on it |
| May | Dry | Rainy | No word on it |
| June | Dry | Outside rainy months | No word on it |
| July | Dry | Outside rainy months | Busiest |
| August | Dry | Outside rainy months | Busiest |
| September | Dry | Outside rainy months | Busiest |
| October | Dry | Outside rainy months | No word on it |
| November | Wet | Outside rainy months | Fewer foreign climbers |
| December | Wet | Rainy | Fewer foreign climbers |
Seasons and crowds as the three sources state them; a blank means the source says nothing for that month.1,2,3,4
Two sources, two calendars
The sources do not agree on the edges. Indonesia's tourism site puts the wet season at November to March, while the Batur geopark's own site dates its rainy season from December to May.1,2 The two overlap from December to March, but they split on April and May, which the national calendar calls dry and the geopark page calls rainy, and on November, which runs the other way.
The national site itself notes significant regional variation, and the geopark describes its own patch: a caldera lake at an altitude of 1,050 meters.1,9 When two official calendars cover different scales, the more local one is the better guide to the lake and the cone, while the national one is the better guide to the island as a whole.
For planning, treat the months both calendars agree on as the firm ground and the split months as a gamble. If you can only travel in a split month, choose a flexible booking and a stay of several days, so that one cloudy dawn can be repeated on the next morning, and keep your expectations of the view modest.
When the mountain is busiest
Weather is not the only calendar. The head of the Batur guides' association says climbers become numerous on the summit between July and September, and that many foreign guests climb in those months.3 The same speaker says that the number of foreign climbers falls in the rainy season.4 The dry months and the crowded months overlap, so the best weather and the biggest groups arrive together.
Crowds change the morning in practical ways. A summit with many groups means a longer line on the narrow sections, less room at the top and more noise at the moment you wanted quiet. A hike on a smaller group or a private group, which our listing offers, gives you back some control over pace and photographs.
If you dislike crowds, look at the months outside July to September and weigh them against the weather trade-off above. The speaker's remark is about foreign climbers in general, so holidays and local events can change a particular morning, and a private group is the surest way to keep your own space at any time of year.
Pick by your priority
Which month for which hiker?
Match your priority to a season
If I want the best odds of a clear sky
The dry season
Indonesia.travel gives April to October as dry.1
If I dislike crowds
A shoulder month
Climbers crowd the summit from July to September.3
If I can only travel in the rains
Choose a flexible rate
Our listing lets you reschedule or cancel if weather stops the activity.
If The chill bothers me
Layers in any month
Summit temperatures can fall below 15 degrees Celsius.5
If I want the long view
A clear dry morning
Guides call seeing Rinjani on Lombok the draw of the climb.10
What rain does to the climb
The geopark's website gives the scale of Batur's rain: an average annual rainfall of 1,838.60 mm, and over 500 mm in the Kintamani area in December 2010 alone.2 It also gives the average annual relative humidity as 87.67 percent.11 Those are air conditions that make the ground slick, the mist thick and the view at dawn a coin toss.
Rain changes the safety of the descent more than the climb. Loose volcanic ground turns slippery, steps become uneven and a headlamp lights only a patch of water. A good guide slows the group, and our listing says the team informs you if weather stops the activity, with the option to reschedule or cancel. Take that offer seriously instead of pushing on for a photograph.
If you climb in the Mount Batur rainy season anyway, bring a rain layer, dry clothes for the ride back, and shoes that tolerate mud. The shared jeep listing says you can request a reschedule in heavy rain on the same date, which is a sign that the operators expect wet mornings. A cloudy dawn is not a failed trip when you still get the breakfast, the walk and the company.
Price a season
Price your Batur morning for the month you picked
Enter your group size and compare three options
3 choices compared
Price your Batur morning for the month you picked
Enter your group size and compare three options
- Guide-led climbsummit breakfast · a head, seats from $16
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View - Hike and springsoak after · a head, seats from $36
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View - Shared jeepon wheels only · a head, seats from $20
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View
Lowest GetYourGuide seat prices at the ECB reference rate; the final amount shows when you book.
A year on the volcano
From the wet months to the crowds
November to March
Wet on the national calendar
Indonesia.travel gives November to March as the wet season.1
December to May
Rainy at the caldera
The geopark gives December to May as its rainy months.2
April to October
Dry on the national calendar
Indonesia.travel gives April to October as the dry season.1
July to September
Busiest climbing months
A guides' association head says climbers crowd the summit then.3
August
Dry peak in the forecast
BMKG forecast dry conditions across all of Bali in August 2026.8
The full year
A cold summit
Summit temperatures can fall below 15 degrees Celsius.5
Cold does not follow the season
Rain comes and goes, but the cold stays. The guides' association head says that on the summit climbers meet cool mist and temperatures that can fall below 15 degrees Celsius.5 The volcano agency's daily report for 30 July 2023 gave an air temperature of about 16 to 20 degrees at its observation post.12 In both cases the air is far cooler than the coast.
Indonesia's tourism site gives the reason: temperatures drop approximately 1 degree for every 90 meters of elevation.13 The mountain's height of 1,717 meters means the difference from the sea is large, and a sweaty climb followed by a stop at the top is the cold moment.14 Pack a layer for every month, because nothing in the sources suggests a season without the chill.
Daylight does not change much either. Indonesia sees relatively little change in the length of daylight from one season to the next, so the hours you walk in the dark are much the same all year.15 Our page on sunrise times lists first light and sunrise for each month, which helps you set the alarm for the month you booked.
Video
When to visit Bali, season by season
Triptly on YouTube · YouTube is contacted only when you press play.
The water temperature of Lake Batur ranges between 22.8°C and 26.6°C, while the average annual relative humidity is 87.67%.
Choose the month
Season checklist for the climb
Choosing the date3
- A free-cancellation option chosen
- A spare morning kept after your date
- A dry-season month if you can
Wet-month kit3
- A rain layer and a dry shirt for the ride
- Shoes you do not mind muddying
- A warm layer, whatever the month
A month-by-month plan
Read the table below as a planning aid. June to October fall inside the national dry season and outside the geopark's rainy months, so both calendars call them dry, and July to September are also when climbers crowd the summit.1,2,3 April and May are dry on the national calendar, while the geopark's calendar counts them as rainy.
From November to March the national calendar says wet, and the geopark says rainy from December. You can still climb in those months, since the mountain is not closed, and quieter groups are the reward, but you should book flexible dates and set a lower bar for the view.4 A hiker who wants the summit at any price should avoid the heart of the wet months and aim for the Mount Batur dry season.
Whatever month you choose, the practical advice is the same. Book a date early in your stay, choose a free-cancellation option, and be ready to move by a day if the team calls to say weather has stopped the activity. The sunrise is on the mountain every morning; it is the sky between you and it that changes.
FAQ
Questions people send us.
What is the best month to hike Mount Batur?
Indonesia.travel gives April to October as the dry season for Java and Bali, though the seasons are less predictable now.1
Is the Mount Batur hike possible in the rainy season?
The geopark says the rainy season runs from December to May, and our listing lets you reschedule or cancel if weather stops the activity.2
When is Mount Batur most crowded?
A guides' association head says climbers crowd the summit in those months.3
How much rain does Mount Batur get?
The geopark gives that annual average, and over 500 mm fell in Kintamani in December 2010.2
Is it cold on Mount Batur in the dry season?
Guides say summit temperatures can fall below 15 degrees Celsius.5
Does the sunrise time change by season?
Indonesia sees little seasonal change in daylight length, and our sunrise page has every month.15
Sources
- Indonesia.travel (Ministry of Tourism) · Bali Seasons and Climate Overview ↩
- Batur Global Geopark (official website) · Official site of Batur Geopark ↩
- ANTARA Bali · Pendakian Gunung Batur Turun Drastis ↩
- ANTARA Bali · Pendakian Gunung Batur Turun Drastis ↩
- ANTARA Bali · Pendakian Gunung Batur Turun Drastis ↩
- Batur Global Geopark (official website) · Official site of Batur Geopark ↩
- BMKG (Indonesia meteorological agency) · BMKG: Musim Kemarau 2026 Datang Lebih Awal, Puncak Terjadi Agustus Mendatang ↩
- BMKG (Indonesia meteorological agency) · BMKG: Musim Kemarau 2026 Datang Lebih Awal, Puncak Terjadi Agustus Mendatang ↩
- Batur Global Geopark (official website) · Official site of Batur Geopark ↩
- ANTARA Bali · Pendakian Gunung Batur Turun Drastis ↩
- Batur Global Geopark (official website) · Official site of Batur Geopark ↩
- MAGMA Indonesia (PVMBG, Ministry of Energy and Mineral Resources) · Laporan Aktivitas Gunung Api - Batur, 30 Juli 2023 ↩
- Indonesia.travel (Ministry of Tourism) · Bali Seasons and Climate Overview ↩
- UNESCO · UNESCO Geopark of Batur ↩
- Indonesia.travel (Ministry of Tourism) · Bali Seasons and Climate Overview ↩
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