September · Indonesia
Best time to visit Bali in September Weather, crowds & prices
Weather in Bali in September
Average temperature 25°C, 29 mm of rain, about 29 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
9.7/10
Ranked #1 of 12 months
- Avg temp
- 25°C
- Rainfall
- 29 mm
- Humidity
- 81%
- Days with 6h+ sun
- 29
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
September in Bali scores 9.7/10 for beach and coastal travel - the single best month of the year. Expect around 25°C, 29 mm of rain, and roughly 29 days with 6+ hours of sunshine this month.
Bali reveals its true magic once you step beyond the resort belt: temple ceremonies, misty rice-field mornings, and hushed beaches are best savored from May to October.
September in Bali — the year's strongest window
September averages 25°C (77°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Expect 29 mm of rain — occasional showers rather than washed-out days — alongside about 29 days with 6+ hours of sunshine and 12 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Bali at 9.7/10 — the reference point every other month on this page is measured against.
Pack light clothing, swimwear and real sun protection.
Figure on peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Bali in September?
- In September, Bali averages 25°C, 29 mm of rain, and about 29 days with 6+ hours of sunshine. Its climate-comfort score is 9.7/10.
- Is September a good time to visit Bali?
- September earns a 9.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Bali in September?
- Expect about 29 mm of rain in September. Average humidity is 81% and there are about 29 days with 6+ hours of sunshine.
Curated in Bali
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Bali, Indonesia. Live activities and tours from GetYourGuide, matched to this destination.