Banjarmasin weather and climate in 2025
Day
32 °C
Night
24 °C
Sea
30 °C
Precipitation
252 mm
in month
Rainy days
17 days
in month
Daylight
12 hours
average
Sunshine
6 hours
average
Humidity
83 %
Day
32 °C
Night
24 °C
Sea
30 °C
Precipitation
252 mm
in month
Rainy days
17 days
in month
Daylight
12 hours
average
Sunshine
6 hours
average
Humidity
83 %
Overview: Banjarmasin
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Weather overview for Banjarmasin
Weather overview
Banjarmasin, located on the island of Borneo in Indonesia, experiences a tropical rainforest climate, with high humidity and significant rainfall throughout the year. Daytime temperatures are consistently warm, ranging from 31 °C (87 °F) in January to a peak of 33 °C (91 °F) in October. Rain is a common feature, with the least rainy days in August and the highest precipitation occurring in November and December. A look at the weather in Banjarmasin reveals a cycle of wet and dry seasons, though even the drier months see considerable rain, indicating no real reprieve from the tropical moisture.
January weather
January in Banjarmasin welcomes you with warm temperatures averaging 31 °C (87 °F) during the day. It's a time of the year when the city sees a lot of rain, experiencing an average of 21 days of rainy days. The humidity level remains high at 85 %.
February weather
As we move into February, Banjarmasin's weather still features heavy rainfall, with 19 days days of rain, but the daytime temperatures rise slightly to an average of 31 °C (88 °F).
March weather
March sees a subtle decrease in rainfall with 18 days of rainy days, and temperatures continue to climb, hitting an average high of 31 °C (89 °F) during the day in Banjarmasin.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.April weather
April in Banjarmasin sees the onset of drier weather, with decrease to 16 days of rainy days, while temperatures are on the rise, reaching 32 °C (90 °F) during the day.
May weather
As May arrives, Banjarmasin experiences a continuation of warm weather with average daytime temperatures at 32 °C (90 °F), and the rain starts to taper off further with around 14 days of rainy days.
June weather
Banjarmasin in June boasts warmer but comfortable weather, with daytime highs averaging 32 °C (89 °F), and the trend of decreasing rainfall continues, showing an average of 12 days of rainy days.
July weather
July welcomes a further reduction in rain with only 11 days of rainy days, and temperatures maintain a warm 32 °C (89 °F) during Banjarmasin's daytime.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.August weather
August is the driest month in Banjarmasin with the lowest average rainy days at 8 days, but don't be fooled, as the temperatures can soar up to an average of 32 °C (90 °F) during the day.
September weather
September in Banjarmasin sees a slight uptick in rainfall with about 8 days of rainy days, but the warmth persists, with day temperatures at an average of 33 °C (91 °F).
October weather
The warmth peaks in October for Banjarmasin with daytime temperatures reaching up to 33 °C (91 °F), and the rainy days begin to increase signaling the return of wetter conditions, as displayed by 12 days of rainy days.
November weather
November's weather in Banjarmasin is characterized by a significant rise in rainfall, averaging 17 days of rainy days, yet the temperature remains high at 32 °C (89 °F) during the day.
December weather
As December arrives, Banjarmasin is in the grip of the wet season, with heavy rainfall averaging 21 days of rainy days, and humidity climbing back up. Daytime temperatures cool slightly to an average of 31 °C (87 °F).
FAQs
How often does it rain in Banjarmasin during January?
In Banjarmasin, you can expect rain quite frequently in January, with an average of 21 days rainy days. Keep your umbrella handy!
Does February in Banjarmasin feel hotter than the previous month?
Yes, with an average day temperature rising marginally to 31 °C (88 °F), February in Banjarmasin may feel somewhat hotter, especially coupled with a slight increase in wind speed to 2.
Is March a significantly drier month in Banjarmasin?
March doesn't mark a significant departure from Banjarmasin's wet season, but with slightly fewer rainy days at 18 days, you may catch a few more dry spells.
Can I expect less rain in Banjarmasin during April?
April brings a gradual decline in rainfall to Banjarmasin, with an average of 16 days of rainy days, indicating a slightly drier trend.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.Is May much drier than the earlier months in Banjarmasin?
May is indeed drier than the start of the year in Banjarmasin, with rainfall decreasing to an average of 14 days of rainy days.
Is June considered part of the dry season in Banjarmasin?
June is still not quite the dry season in Banjarmasin, but with an average of 12 days of rainy days, it is one of the drier months.
What marks the weather in Banjarmasin during July?
July's weather in Banjarmasin is noted for a slight retreat in rainfall, averaging 11 days of rainy days, and consistently warm temperatures.
With August being the driest month, is it significantly less humid in Banjarmasin?
Despite being the driest month, August in Banjarmasin still features high humidity, around 78 %, so the air can feel quite heavy.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.Does the rainfall in September affect outdoor activities in Banjarmasin?
Rainfall in September, while slightly increased, still allows for outdoor activities in Banjarmasin, with an average of 8 days of rainy days.
Is October the start of the wet season in Banjarmasin?
October does indeed mark the gradual return to wetter weather in Banjarmasin, with an increase in rainy days to 12 days, although it's not yet the peak of the rainy season.
How wet is Banjarmasin in November?
November is pretty wet in Banjarmasin, with a substantial increase in rainy days to 17 days. Expect frequent showers throughout the month.
What is the chance of getting caught in the rain in Banjarmasin in December?
The likelihood of rain in Banjarmasin during December is high, with 21 days of rainy days recorded on average, making it one of the wettest months.
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.