Tarakan climate — normals and trends
Tarakan (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.7 °C and it receives 2,837 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 May (27.1 °C on average) and the coldest is January (26.2 °C). Rainfall peaks in December.
Tarakan averages 0 frost days, 11 hot days (≥ 30 °C) and 337 rainy days per year.
Tarakan has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.7 °C (on 23 October 2024) and the coldest 22.7 °C (on 28 January 1971).
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
TarakanNorth Kalimantan
- coords
- 3.31°, 117.59°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.7°C
Average daily high
28.2°C
Average daily low
25.2°C
Annual rainfall
2,837mm
Sunshine / day
10.1h
Mean relative humidity
84%
Average peak wind
13.4km/h
Seasonal range
0.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
337 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.1 °C
Average feels-like low
29.7 °C
Average peak gust
22.3 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
18.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.79 · 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
32.7 °C
23 October 2024
Coldest day
22.7 °C
28 January 1971
Wettest day
173 mm
4 April 1988
Windiest day
26.9 km/h
21 January 1961
Strongest gust
45.0 km/h
28 January 1998
Hottest feels-like
39.9 °C
26 October 2024
Coldest feels-like
24.8 °C
29 January 1940
Sunniest day
12.0 h
2 May 1940
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 | 28.2 °C | +0.7 °C | 562 mm | +308 mm |
| Feb | 28.3 °C | +0.8 °C | 297 mm | +85 mm |
| Mar | 28.3 °C | +0.5 °C | 334 mm | +108 mm |
| Apr | 28.8 °C | +0.5 °C | 309 mm | +85 mm |
| May | 29.4 °C | +0.8 °C | 296 mm | +47 mm |
| Jun | 29.0 °C | +0.5 °C | 216 mm | -1 mm |
| Jul | 29.8 °C | +1.3 °C | 120 mm | -86 mm |
| Aug | 28.7 °C | +0.1 °C | 309 mm | +95 mm |
| Sep | 29.1 °C | +0.6 °C | 278 mm | +44 mm |
| Oct | 29.0 °C | +0.6 °C | 333 mm | +76 mm |
| Nov | 29.4 °C | +1.2 °C | 229 mm | -35 mm |
| Dec | 28.8 °C | +1.0 °C | 392 mm | +111 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 Tarakan?
Tarakan has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.7 °C and it receives 2,837 mm of precipitation per year.
What is the hottest day ever recorded in Tarakan?
The hottest day measured in Tarakan between 1940 and 2025 was 23 October 2024, reaching 32.7 °C.
What is the coldest day in Tarakan?
The coldest day measured in Tarakan between 1940 and 2025 was 28 January 1971, at 22.7 °C.
Does it snow in Tarakan?
Almost never: Tarakan sees virtually no snow, with about 0 frost days per year.
Has the climate of Tarakan warmed?
Yes: Tarakan warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tarakan?
The wettest day measured in Tarakan between 1940 and 2025 was 4 April 1988, with 173 mm of rain in 24 hours.
What was the windiest day in Tarakan?
The windiest day measured in Tarakan between 1940 and 2025 was 21 January 1961, with winds reaching 26.9 km/h.
What is the warmest month in Tarakan?
The warmest month in Tarakan is May (27.1 °C on average); the coldest is January (26.2 °C).
How much does it rain in Tarakan?
Tarakan receives on average 2,837 mm of precipitation per year, spread over about 337 rainy days.
Is it sunny in Tarakan?
Tarakan gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
Are there tropical nights in Tarakan?
Yes: Tarakan has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tarakan?
In Tarakan, between 1940 and 2025, the highest apparent temperature reached 39.9 °C on 26 October 2024, and the lowest was 24.8 °C on 29 January 1940.
Compare Tarakan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tarakan