When to go
Best time to visit Bali, month by month
The honest version fits in four sentences. Bali has a wet season, roughly November to March, and a dry season, roughly May to September, with April and October as the hinges. The dry season is more reliable and more crowded; the wet season is greener, quieter and punctuated by real rain rather than ruined by it. No month is a mistake, and several of the cheapest are among the best.
The pages below say what each month is actually like, which coast works, and what moves from year to year. Every figure on them is sourced: the only official rainfall normals published for Denpasar, supplied by BMKG to the WMO; a temperature normal we recomputed ourselves from thirty years of the airport's daily records; and the real crowd calendar from the province's own statistics, which contradicts the travel press in three places at once.
The dry season: May to September
Reliable sun and the year's coolest air: August is both the driest month, 25 mm in the official normals, and the coldest, 26.3 °C mean in our recomputation. The waves peak with the season, around 2.2 m offshore on the Bukit reefs. And the island fills on a schedule you can source: July's 697,000 arrivals, the year's peak, land exactly where the school holidays of four Australian states overlap. May and September deliver the same sky with tens of thousands fewer people, which is why they anchor our verdict below.
The wet season: November to March
Greener, quieter and cheaper, with rain in real episodes rather than ruined days: January's 345 mm is the year's ceiling, and February, not December, is the island's true trough, 22 percent below the average month. The waves are at their smallest, which cleans up the east coast for surfers, and the west monsoon delivers Kuta's documented debris season, measured by the county itself at 1,704 tonnes in a single January. The exact onset moves zone by zone each year, which the BMKG bulletin page tracks from the source.
The hinges: April and October
April is the sharpest turn of the calendar, 234 mm in March to 88 in April, dry season light over wet season green; October frays gently the other way and shares with November the year's longest average stays. Both combine most of the dry season's usability with shoulder attendance, and both are the undervalued answers for flexible dates.
Our pick, stated plainly
Free to choose any dates: September, the August sky with 62,000 fewer people, and May just behind it. Tied to school holidays: early July over August. Chasing the lowest prices: February, the measured trough, or March, when hotel occupancy bottoms at 47 percent. No month is a mistake; the two to book with open eyes are the Christmas fortnight and, around its moveable date, Nyepi, whose 2027 date is still contested between 8 and 9 March until the ministerial decree lands.
Bali in January
The heart of the wet season: green, quiet and cheap, with real afternoon rain and the west facing beaches at their worst.
Bali in February
Deep wet season, twin of January: the quietest, greenest stretch of the year, best taken with flexible plans.
Bali in March
The wet season eases, and one moveable day stops the entire island: Nyepi, when even the airport closes for 24 hours.
Bali in April
The hinge between seasons and the quiet bargain of the year: drying weather, green landscape, dry season light without dry season crowds.
Bali in May
The dry season opens: reliable sun, the west coast surf waking up, and the last calm before the school holiday crowds.
Bali in June
Full dry season, the coolest stretch of the year begins, and the first wave of holiday crowds arrives late in the month.
Bali in July
Peak season at its peak: the driest, coolest, windiest weather of the year, kites over the east coast, and maximum crowds everywhere.
Bali in August
Twin of July with one fixed date the whole country celebrates: Independence Day on the 17th, flags and ceremonies everywhere.
Bali in September
For many the best month of the year: dry season weather with the crowds visibly draining away week by week.
Bali in October
The second hinge: humidity builds, the first storms return late, and the island offers dry season assets at shoulder prices.
Bali in November
The wet season returns to an empty island: hot, humid, dramatic skies, and the year's quietest month alongside February.
Bali in December
Three quiet wet weeks, then one of the busiest and most expensive weeks of the year: December is two months wearing one name.
Dates that move each year, Nyepi above all, are never printed here as fixed. The rules of arrival do not change with the season: they are in everything you must pay to enter.