Barabai climate — normals and trends
Barabai (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 25.3 °C and it receives 2,273 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 (25.7 °C on average) and the coldest is January (24.9 °C). Rainfall peaks in November.
Barabai averages 0 frost days, 160 hot days (≥ 30 °C) and 286 rainy days per year.
Barabai has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.5 °C (on 25 September 2009) and the coldest 17.3 °C (on 19 July 1961).
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
BarabaiSouth Kalimantan
- coords
- -2.58°, 115.38°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.3°C
Average daily high
29.8°C
Average daily low
22.2°C
Annual rainfall
2,273mm
Sunshine / day
9.1h
Mean relative humidity
86%
Average peak wind
7.0km/h
Seasonal range
0.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
160 d/yr
Rainy days (≥ 1 mm)
286 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.7 °C
Average feels-like low
26.5 °C
Average peak gust
23.3 km/h
Tropical nights (≥ 20 °C)
358 d/yr
Solar radiation
17.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.76 · 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
36.5 °C
25 September 2009
Coldest day
17.3 °C
19 July 1961
Wettest day
186 mm
7 March 2025
Windiest day
19.6 km/h
18 December 1954
Strongest gust
75.2 km/h
10 January 2013
Hottest feels-like
42.6 °C
14 October 2020
Coldest feels-like
18.5 °C
13 September 1965
Sunniest day
12.1 h
15 February 1958
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.3 °C | +0.4 °C | 291 mm | +105 mm |
| Feb | 30.4 °C | +1.2 °C | 173 mm | -4 mm |
| Mar | 30.2 °C | +0.7 °C | 421 mm | +198 mm |
| Apr | 30.2 °C | +0.4 °C | 225 mm | -13 mm |
| May | 31.1 °C | +1.1 °C | 221 mm | +9 mm |
| Jun | 30.6 °C | +0.9 °C | 231 mm | +70 mm |
| Jul | 31.4 °C | +1.7 °C | 63 mm | -72 mm |
| Aug | 30.6 °C | +0.4 °C | 212 mm | +85 mm |
| Sep | 30.8 °C | +0.1 °C | 216 mm | +66 mm |
| Oct | 31.0 °C | +0.3 °C | 151 mm | -44 mm |
| Nov | 30.5 °C | +0.7 °C | 147 mm | -99 mm |
| Dec | 29.9 °C | +1.0 °C | 176 mm | -46 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 Barabai?
Barabai has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 25.3 °C and it receives 2,273 mm of precipitation per year.
What is the hottest day ever recorded in Barabai?
The hottest day measured in Barabai between 1940 and 2025 was 25 September 2009, reaching 36.5 °C.
What is the coldest day in Barabai?
The coldest day measured in Barabai between 1940 and 2025 was 19 July 1961, at 17.3 °C.
Does it snow in Barabai?
Almost never: Barabai sees virtually no snow, with about 0 frost days per year.
Has the climate of Barabai warmed?
Yes: Barabai warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Barabai?
The wettest day measured in Barabai between 1940 and 2025 was 7 March 2025, with 186 mm of rain in 24 hours.
What was the windiest day in Barabai?
The windiest day measured in Barabai between 1940 and 2025 was 18 December 1954, with winds reaching 19.6 km/h.
What is the warmest month in Barabai?
The warmest month in Barabai is October (25.7 °C on average); the coldest is January (24.9 °C).
How much does it rain in Barabai?
Barabai receives on average 2,273 mm of precipitation per year, spread over about 286 rainy days.
Is it sunny in Barabai?
Barabai gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
Are there tropical nights in Barabai?
Yes: Barabai has on average 358 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Barabai?
In Barabai, between 1940 and 2025, the highest apparent temperature reached 42.6 °C on 14 October 2020, and the lowest was 18.5 °C on 13 September 1965.
Compare Barabai with another city
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Nearby cities
The climate around Barabai