Bali weather
in September
“Mild and bright — an underrated time to visit.”
Roughly 21 rainy days across the month, on average.
In september, Bali settles into its kind, mild rhythm. The city keeps a different pulse than in summer or midwinter, and travellers who arrive with the right expectations are rewarded.
Days average around 20°C (68°F), cooling to 13°C after sunset. Expect meaningful rain — some 21 wet days across the month. Pack accordingly and let the weather choose your afternoons. Long days of sunshine reward early starts.
These figures are climatological averages, drawn from a decade of daily records via the Open-Meteo Archive — not a forecast. But they are honest, and they are the sort of thing a good travel guide ought to tell you before you book the flight.
What to pack for Bali in September
- •A light layer for cool mornings and evenings
- •A compact travel umbrella — one you'll actually carry
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for Bali in September
- →Breathable travel pantsAmazon · shop this
- →Packable rain jacketAmazon · shop this
- →Compact travel umbrellaAmazon · shop this
- →Waterproof dry bagAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
- →Polarized sunglassesAmazon · shop this
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Where to stay in Bali
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Bali in September — FAQ
Q01Is September a good time to visit Bali?
Is September a good time to visit Bali?
It is a fair time to visit — expect variable conditions and plan flexibility. In September, Bali averages a high of 20°C (68°F) and a low of 13°C (55°F), with 122mm of rainfall across roughly 21 rainy days.
Q02What is the average temperature in Bali in September?
What is the average temperature in Bali in September?
The average high temperature in Bali during September is 20°C (68°F), with an average low of 13°C (55°F). These figures are averaged from ten years of daily records (2015–2024, Open-Meteo Archive).
Q03How many rainy days does Bali have in September?
How many rainy days does Bali have in September?
Bali averages approximately 21 rainy days in September, with a total monthly rainfall of about 122mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for Bali in September?
What should I pack for Bali in September?
For Bali in September, pack layered clothing for changing temperatures, a compact umbrella or waterproof jacket, comfortable walking shoes. These recommendations are based on the ten-year weather averages for this specific month.
Q05How crowded is Bali in September?
How crowded is Bali in September?
Tourist crowds in Bali during September are typically moderate — shoulder season, a sweet spot between crowds and weather. Consider this when planning accommodation — prices track crowd levels closely.