September · Indonesia
Best time to visit Jakarta in September Weather, crowds & prices
Weather in Jakarta in September
Average temperature 28°C, 114 mm of rain, about 30 days with 6+ hours of sunshine and 75% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
5.4/10
Ranked #3 of 12 months
- Avg temp
- 28°C
- Rainfall
- 114 mm
- Humidity
- 75%
- Days with 6h+ sun
- 30
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Jakarta scores 5.4/10 for sightseeing and cultural travel - one of the top 12-month picks (#3). Expect around 28°C, 114 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
Jakarta packs museums, markets and a Dutch colonial quarter into Indonesia's sprawling capital.
September in Jakarta — middling scores, decent value
September averages 28°C (82°F) and humidity near 75%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Monthly rainfall reaches 114 mm — wet for this destination — but about 30 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 5.4/10 here, 3rd of 12 months, against 6.2/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Plan for mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Jakarta in September?
- In September, Jakarta averages 28°C, 114 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 5.4/10.
- Is September a good time to visit Jakarta?
- September earns a 5.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Jakarta in September?
- Expect about 114 mm of rain in September. Average humidity is 75% and there are about 30 days with 6+ hours of sunshine.
Curated in Jakarta
Tickets & experiences
Things to do in Jakarta
Jakarta, Indonesia. Live activities and tours from GetYourGuide, matched to this destination.