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Banjarmasin Weather by Month
Average temperatures, rainfall and humidity for Banjarmasin, Indonesia, month by month, built from OpenWeather’s historical records. Use it to see what a typical Banjarmasin month looks like before you travel — then check the live Banjarmasin forecast for the days ahead.
Warmest month
September
32°C average high
Coolest month
August
23°C average low
Wettest month
March
156 mm of rain
Driest month
August
26 mm of rain
Average temperature and rainfall in Banjarmasin by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 30°C | 24°C | 9°C / 35°C | 121 mm | 87% | 7 km/h |
| February | 31°C | 24°C | 21°C / 42°C | 130 mm | 86% | 7 km/h |
| March | 31°C | 25°C | 22°C / 37°C | 156 mm | 85% | 7 km/h |
| April | 32°C | 25°C | 22°C / 35°C | 126 mm | 85% | 6 km/h |
| May | 32°C | 25°C | 4°C / 38°C | 66 mm | 86% | 7 km/h |
| June | 31°C | 24°C | 21°C / 36°C | 49 mm | 86% | 7 km/h |
| July | 31°C | 24°C | 20°C / 36°C | 39 mm | 83% | 8 km/h |
| August | 32°C | 23°C | 19°C / 38°C | 26 mm | 80% | 9 km/h |
| September | 32°C | 24°C | 7°C / 38°C | 35 mm | 79% | 9 km/h |
| October | 32°C | 24°C | 22°C / 39°C | 54 mm | 81% | 8 km/h |
| November | 31°C | 25°C | 22°C / 37°C | 112 mm | 86% | 7 km/h |
| December | 30°C | 24°C | 22°C / 34°C | 134 mm | 87% | 7 km/h |
Best time to visit Banjarmasin
The most comfortable time to visit Banjarmasin is generally July to September, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around March, totalling about 1,046 mm a year.
Travellers who prefer heat should aim for September, when highs average 32°C. March is the month to avoid if rain would spoil your plans — it averages 156 mm, roughly 6× the rainfall of the driest month (August).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Banjarmasin forecast for what is happening now.