Banjarbaru climate — normals and trends
Banjarbaru (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.2 °C and it receives 2,564 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is October (26.9 °C on average) and the coldest is December (25.7 °C). Rainfall peaks in December.
Banjarbaru averages 0 frost days, 235 hot days (≥ 30 °C) and 267 rainy days per year.
Banjarbaru has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.9 °C (on 23 October 2019) and the coldest 17.4 °C (on 6 July 1956).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
BanjarbaruSouth Kalimantan
- coords
- -3.44°, 114.84°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.2°C
Average daily high
30.7°C
Average daily low
23.1°C
Annual rainfall
2,564mm
Sunshine / day
9.4h
Mean relative humidity
85%
Average peak wind
10.5km/h
Seasonal range
1.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
235 d/yr
Rainy days (≥ 1 mm)
267 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.6 °C
Average feels-like low
27.6 °C
Average peak gust
28.4 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
17.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.74 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
37.9 °C
23 October 2019
Coldest day
17.4 °C
6 July 1956
Wettest day
169 mm
17 December 2007
Windiest day
23.1 km/h
18 September 1944
Strongest gust
77.8 km/h
10 January 2013
Hottest feels-like
43.8 °C
21 March 2016
Coldest feels-like
19.5 °C
6 July 1956
Sunniest day
12.2 h
10 January 1948
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 30.0 °C | +0.4 °C | 420 mm | +114 mm |
| Feb | 30.9 °C | +1.0 °C | 228 mm | -33 mm |
| Mar | 30.8 °C | +0.6 °C | 311 mm | +23 mm |
| Apr | 30.9 °C | +0.2 °C | 229 mm | -30 mm |
| May | 31.8 °C | +0.9 °C | 233 mm | +36 mm |
| Jun | 31.1 °C | +0.6 °C | 173 mm | +29 mm |
| Jul | 31.7 °C | +1.3 °C | 79 mm | -27 mm |
| Aug | 31.2 °C | 0.0 °C | 153 mm | +67 mm |
| Sep | 31.7 °C | -0.3 °C | 255 mm | +153 mm |
| Oct | 31.8 °C | -0.4 °C | 284 mm | +114 mm |
| Nov | 30.7 °C | -0.1 °C | 299 mm | +20 mm |
| Dec | 30.0 °C | +0.5 °C | 405 mm | +39 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Banjarbaru?
Banjarbaru has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.2 °C and it receives 2,564 mm of precipitation per year.
What is the hottest day ever recorded in Banjarbaru?
The hottest day measured in Banjarbaru between 1940 and 2025 was 23 October 2019, reaching 37.9 °C.
What is the coldest day in Banjarbaru?
The coldest day measured in Banjarbaru between 1940 and 2025 was 6 July 1956, at 17.4 °C.
Does it snow in Banjarbaru?
Almost never: Banjarbaru sees virtually no snow, with about 0 frost days per year.
Has the climate of Banjarbaru warmed?
Yes: Banjarbaru warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Banjarbaru?
The wettest day measured in Banjarbaru between 1940 and 2025 was 17 December 2007, with 169 mm of rain in 24 hours.
What was the windiest day in Banjarbaru?
The windiest day measured in Banjarbaru between 1940 and 2025 was 18 September 1944, with winds reaching 23.1 km/h.
What is the warmest month in Banjarbaru?
The warmest month in Banjarbaru is October (26.9 °C on average); the coldest is December (25.7 °C).
How much does it rain in Banjarbaru?
Banjarbaru receives on average 2,564 mm of precipitation per year, spread over about 267 rainy days.
Is it sunny in Banjarbaru?
Banjarbaru gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Banjarbaru?
Yes: Banjarbaru has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Banjarbaru?
In Banjarbaru, between 1940 and 2025, the highest apparent temperature reached 43.8 °C on 21 March 2016, and the lowest was 19.5 °C on 6 July 1956.
Compare Banjarbaru with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Banjarbaru