Makassar (Sulawesi) weather in September
September in Makassar: sweltering, rainy, with muggy air — fine if you can take 39°C afternoons.
Updated September 2026 · climate normals from ERA5 reanalysis
#2 of 12 months in Makassar · #953 of 1413 destinations to visit in September · comfort 70/100 (tier B)
- Days
- 33°C
- Nights
- 22°C
- Wet days
- 14
- Sun
- 10.9 h
- Humidity
- 76%
- Daylight
- 12 h

Traveller notes on Makassar in September
Other months in Makassar
Forum posters discussing Indonesia's wider wet season note February typically runs a bit drier than January, though rain remains a real presence and some posters describe daily rain potentially continuing well into May depending on the year. It's worth noting Makassar's own 12-month climate record backs the drier-than-January comparison (about 26 rainy days in February versus January's 30) but doesn't support treating February as close to the season's end - the city's genuinely drier stretch doesn't arrive until around July-September. Posters describing Makassar itself note it runs hot in a similar way to Brisbane in December, with southern Sulawesi generally considered a reasonable place to be this time of year despite the rain. Posters generally rate February as still solidly wet season for Makassar, marginally better than January but far from the year's driest stretch.
Forum posters describe August as sitting in the region's drier season, with generally good conditions for travel compared to the wetter months, even though some rain remains part of the picture rather than a fully dry stretch. Temperatures are described by one poster as 'a bit hot, just like Brisbane in December' - warm and humid but not extreme. Posters recommend Makassar as a worthwhile stop for diving, fishing and jetboat activities on the water, generally framing it as an underrated base compared to more heavily-touristed parts of Indonesia, with August's drier conditions supporting a full slate of outdoor activities.
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Makassar climate normals — September
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Makassar in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Busyschool holidays in 3 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Makassar's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherMakassar's weather peaks July–September, best around August.
Best weatherFair weatherToughest weather
What's on in Makassar in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Dry season
1 Jun – 31 Oct · usuallyThe window for anything on the water — the crossings to Samalona and the Spermonde islands, and the road north to the Toraja highlands without the landslide delays.
Where is Makassar?
Makassar in September — FAQ
- Is September a good time to visit Makassar?
- September in Makassar: sweltering, rainy, with muggy air — fine if you can take 39°C afternoons. It ranks #2 of 12 months for Makassar on SeasonMap's comfort score (70/100).
- What is the weather like in Makassar in September?
- In September, Makassar averages a daily high of 32.7°C and a low of 22.2°C, with about 111.6 mm of rain over roughly 13.5 rainy days.
- What is the air quality in Makassar in September?
- Makassar has a mean US Air Quality Index of about 52 in September.