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Banjarmasin Weather in September
September in Banjarmasin typically sees daytime highs of 33°C (91°F) and nighttime lows of 24°C (75°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Banjarmasin in September
On average, there are about 7 days with rain during this month, averaging 74 mm (2.9 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Banjarmasin in September
Banjarmasin in September gets highs of 33°C (91°F) during the day and drops to 24°C (75°F) at night. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. Nights stay warm at around 24°C (75°F), so light bedding and good ventilation are worth thinking about.If your ideal day consists of dry skies and pleasant temperatures, July typically offers the best circumstances for Banjarmasin.
Banjarmasin Temperature in September
Min Temperature
24°C (75°F)
Max Temperature
33°C (91°F)
Chance of Rain
23%
Precipitation
74 mm (2.9 in)
Rainy days
7 days
Banjarmasin Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Banjarmasin - and find the best time to visit.
Daily Historical Temperatures
45-year average (1976-2025)
Based on our historical records, temperatures in Banjarmasin typically stay consistent throughout September, with daily highs averaging around 33°C (91°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Daily Historical Precipitation
45-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Banjarmasin in September
Browse day-by-day weather records for Banjarmasin spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Banjarmasin historical weather extremes in September
The extremes listed below come from historical weather data collected in Banjarmasin from 2002 through 2026.
- Banjarmasin recorded its highest September temperature of 38°C (100°F) on September 20, 2026.
- On September 23, 2003, Banjarmasin saw its coldest September day with temperatures maxing out at 24°C (75°F).
- The coldest night in September in Banjarmasin was on September 2, 2023, with a minimum of 20°C (68°F).
Best Places in Indonesia in September
Find out more about the weather in Indonesia and which places have the best travel conditions in this month. See all of Indonesia in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Banjarmasin in September
Hot weather in September means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. Rain gear is recommended, you can expect wet weather on multiple days.
What To Do in Banjarmasin in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping8/10 -
Outdoor sports7/10
Banjarmasin 3-Day Forecast
More climate data for Banjarmasin
See the full Banjarmasin climate overview or explore weather in Indonesia.
Popular in September
Where to go in September - average daytime high across popular destinations.
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