Banjarmasin Weather in August
What's the weather like in Banjarmasin (South Kalimantan) in August 2025?
The climate in Banjarmasin during August can be summarized as hot, humid and a little damp.
August is in the winter in Banjarmasin and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 22°C (72°F) is normal.
| Daytime temperature | 31.5°C 88.6°F |
|---|---|
| Nightly temperature | 22°C 71.5°F |
| Average temperature | 26.7°C 80.1°F |
| Daily sunshine | 9 hrs |
| Avg rainfall | 92 mm 3.6 ins |
| Rainy days | 8 days |
| Sea temperature | 27.8°C 82.1°F |
| Humidity | 78% |
| Windspeed | 11.5kph 7 mph |
On average August is the driest month of the year in Banjarmasin with around 92mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 9 hours of sunshine per day.
August temperatures in Banjarmasin
August rainfall
August hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Banjarmasin in August 2025.
Other monthly averages
Best places to visit in August
Banjarmasin weather stats
| Hottest month: | April | 31.1°C 88°F |
|---|---|---|
| Driest month: | August | 92mm 3.6ins |
| Sunniest month: | August | 9hrs |
| Coldest month: | July | 30.4°C 86.7°F |
| Wettest month: | January | 334mm 13.1ins |
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