Samarinda climate — normals and trends
Samarinda (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.1 °C and it receives 2,784 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 (26.4 °C on average) and the coldest is January (25.9 °C). Rainfall peaks in December.
Samarinda averages 0 frost days, 224 hot days (≥ 30 °C) and 313 rainy days per year.
Samarinda has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.3 °C (on 23 April 1998) and the coldest 19.9 °C (on 15 September 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
SamarindaEast Kalimantan
- coords
- -0.49°, 117.15°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.1°C
Average daily high
30.4°C
Average daily low
23.4°C
Annual rainfall
2,784mm
Sunshine / day
10.0h
Mean relative humidity
88%
Average peak wind
8.7km/h
Seasonal range
0.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
224 d/yr
Rainy days (≥ 1 mm)
313 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.8 °C
Average feels-like low
28.1 °C
Average peak gust
25.3 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
18.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.83 · 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
36.3 °C
23 April 1998
Coldest day
19.9 °C
15 September 1961
Wettest day
147 mm
22 May 2020
Windiest day
21.5 km/h
9 March 1973
Strongest gust
61.2 km/h
22 November 2007
Hottest feels-like
43.7 °C
15 April 2022
Coldest feels-like
21.8 °C
4 August 1949
Sunniest day
12.0 h
28 September 1940
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 | 31.1 °C | +1.1 °C | 410 mm | +154 mm |
| Feb | 31.6 °C | +1.5 °C | 287 mm | +52 mm |
| Mar | 31.4 °C | +1.0 °C | 357 mm | +82 mm |
| Apr | 31.0 °C | +0.4 °C | 432 mm | +154 mm |
| May | 32.2 °C | +1.7 °C | 392 mm | +143 mm |
| Jun | 31.2 °C | +1.1 °C | 200 mm | -6 mm |
| Jul | 31.8 °C | +1.8 °C | 118 mm | -56 mm |
| Aug | 31.0 °C | +0.7 °C | 260 mm | +85 mm |
| Sep | 32.0 °C | +1.3 °C | 291 mm | +109 mm |
| Oct | 32.2 °C | +1.3 °C | 234 mm | +24 mm |
| Nov | 31.8 °C | +1.2 °C | 260 mm | +1 mm |
| Dec | 32.0 °C | +1.8 °C | 312 mm | +27 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 Samarinda?
Samarinda has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.1 °C and it receives 2,784 mm of precipitation per year.
What is the hottest day ever recorded in Samarinda?
The hottest day measured in Samarinda between 1940 and 2025 was 23 April 1998, reaching 36.3 °C.
What is the coldest day in Samarinda?
The coldest day measured in Samarinda between 1940 and 2025 was 15 September 1961, at 19.9 °C.
Does it snow in Samarinda?
Almost never: Samarinda sees virtually no snow, with about 0 frost days per year.
Has the climate of Samarinda warmed?
Yes: Samarinda warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Samarinda?
The wettest day measured in Samarinda between 1940 and 2025 was 22 May 2020, with 147 mm of rain in 24 hours.
What was the windiest day in Samarinda?
The windiest day measured in Samarinda between 1940 and 2025 was 9 March 1973, with winds reaching 21.5 km/h.
What is the warmest month in Samarinda?
The warmest month in Samarinda is May (26.4 °C on average); the coldest is January (25.9 °C).
How much does it rain in Samarinda?
Samarinda receives on average 2,784 mm of precipitation per year, spread over about 313 rainy days.
Is it sunny in Samarinda?
Samarinda gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
Are there tropical nights in Samarinda?
Yes: Samarinda has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Samarinda?
In Samarinda, between 1940 and 2025, the highest apparent temperature reached 43.7 °C on 15 April 2022, and the lowest was 21.8 °C on 4 August 1949.
Compare Samarinda with another city
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Nearby cities
The climate around Samarinda