The climate in Banjarmasin during December can be summarized as hot, humid and very wet.
December is in the summer in Banjarmasin and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 23°C (74°F) is normal.
Daytime temperature | 30.2°C 86.3°F |
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Nightly temperature | 23.3°C 73.9°F |
Average temperature | 26.7°C 80.1°F |
Daily sunshine | 4.9 hrs |
Avg rainfall | 316 mm 12.4 ins |
Rainy days | 18 days |
Sea temperature | 29.4°C 85°F |
Humidity | 85% |
Windspeed | 9.7kph 6 mph |
On average December is the 2nd wettest month of the year in Banjarmasin with around 316mm 12.4 inches of rain making it a very wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.9 hours of sunshine per day.
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 December 2024.
Best places to visit in December
Hottest month: | April | 31.1°C 88°F |
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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 |