Samarinda climate

Name: Samarinda
Address: ID

Samarinda is warmest in October, with average highs of 31 °C, and coldest in July, when nights average 23 °C. December is the wettest month (319 mm) and August the driest (169 mm). Figures are 1991–2020 climate normals.

Across a full year Samarinda averages 2,992 mm of rain and 365 days above 25 °C.

Indonesia · population 865,306 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month October 31 °C
Coldest month July 23 °C
Driest month August 169 mm
Wettest month December 319 mm
Least cloud August 72 % cloud
Hottest on record March 36 °C
Coldest on record July 20 °C

What to expectSamarinda through the year

Samarinda changes little through the year. Average daily highs stay between 29 and 31 °C, so no month stands out as a season in the way it would further from the equator.

Counted across a normal year, 365 days a year reach 25 °C, 190 of them reach 30 °C. The warmest reading in the 1991–2020 record is 36 °C, in March.

Rain is spread fairly evenly through the year, from 169 mm in August to 319 mm in December. There is no dry season to aim for.

Month by month

Month	Avg high	Rainfall	Cloud
January	29.7 °C	278 mm	92 %
February	29.9 °C	243 mm	90 %
March	30.1 °C	298 mm	87 %
April	30.1 °C	307 mm	87 %
May	29.9 °C	261 mm	82 %
June	29.6 °C	233 mm	79 %
July	29.4 °C	189 mm	76 %
August	30.0 °C	169 mm	72 %
September	30.6 °C	178 mm	75 %
October	30.6 °C	227 mm	84 %
November	30.0 °C	290 mm	91 %
December	29.7 °C	319 mm	94 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	29.7 °C	23.2 °C	25.7 °C	32.7 °C	21.3 °C	31	13
February	29.9 °C	23.3 °C	25.9 °C	35.4 °C	21.5 °C	28	14
March	30.1 °C	23.4 °C	26.0 °C	35.6 °C	22.1 °C	31	17
April	30.1 °C	23.6 °C	26.1 °C	35.5 °C	21.7 °C	30	17
May	29.9 °C	23.8 °C	26.1 °C	32.9 °C	22.1 °C	31	16
June	29.6 °C	23.5 °C	25.8 °C	32.8 °C	21.8 °C	30	13
July	29.4 °C	23.2 °C	25.7 °C	32.6 °C	19.8 °C	31	11
August	30.0 °C	23.3 °C	25.9 °C	34.1 °C	21.3 °C	31	16
September	30.6 °C	23.4 °C	26.3 °C	35.5 °C	21.7 °C	30	21
October	30.6 °C	23.5 °C	26.2 °C	34.6 °C	21.9 °C	31	22
November	30.0 °C	23.4 °C	25.9 °C	33.4 °C	22.2 °C	30	17
December	29.7 °C	23.4 °C	25.8 °C	34.0 °C	21.8 °C	31	13

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	278 mm	26	12 h/day	92 %	89 %	8.8 km/h
February	243 mm	23	12 h/day	90 %	89 %	9.2 km/h
March	298 mm	27	12 h/day	87 %	89 %	8.8 km/h
April	307 mm	28	12 h/day	87 %	90 %	7.9 km/h
May	261 mm	29	12 h/day	82 %	91 %	7.8 km/h
June	233 mm	26	12 h/day	79 %	90 %	8.1 km/h
July	189 mm	24	12 h/day	76 %	88 %	9.4 km/h
August	169 mm	21	12 h/day	72 %	86 %	10 km/h
September	178 mm	21	12 h/day	75 %	85 %	9.9 km/h
October	227 mm	26	12 h/day	84 %	88 %	9.1 km/h
November	290 mm	28	12 h/day	91 %	90 %	8.0 km/h
December	319 mm	29	12 h/day	94 %	91 %	8.1 km/h

How Samarinda compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Samarinda	31 °C	23 °C	2,992 mm	365
Loa Janan · Indonesia	31 °C	23 °C	2,917 mm	365
Bontang · Indonesia	30 °C	24 °C	2,776 mm	365
Balikpapan · Indonesia	29 °C	24 °C	2,499 mm	365
Palu · Indonesia	31 °C	24 °C	3,588 mm	365
Palangkaraya · Indonesia	32 °C	23 °C	2,670 mm	365
Banjarbaru · Indonesia	32 °C	23 °C	2,622 mm	365

Planning a trip? See the best time to visit Samarinda.

QuestionsCommon questions about Samarinda’s climate

When is the best time to visit Samarinda?

That depends on what you want, so the honest answer is a comparison rather than a single month. January, July, December sit closest to 20 °C on average, October is the warmest month and August the driest. The month-by-month table above has the full picture.

How hot does Samarinda get?

In October, the warmest month, daily highs average 31 °C. About 190 days a year pass 30 °C. The highest value in the 1991–2020 record is 36 °C.

How cold does it get in winter?

Nights average 23 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Samarinda?

December, averaging 319 mm over 29 days with rain. The driest month is August with 169 mm. The year as a whole averages 2,992 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Samarinda rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: -0.492°, 117.146° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.