Cianjur climate

Name: Cianjur
Address: ID

Cianjur is warmest in September, with average highs of 30 °C, and coldest in July, when nights average 20 °C. January is the wettest month (325 mm) and August the driest (56 mm). Figures are 1991–2020 climate normals.

Across a full year Cianjur averages 2,458 mm of rain and 358 days above 25 °C.

Indonesia · population 174,587 · 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 September 30 °C
Coldest month July 20 °C
Driest month August 56 mm
Wettest month January 325 mm
Least cloud August 59 % cloud
Hottest on record October 36 °C
Coldest on record July 15 °C

What to expectCianjur through the year

Cianjur changes little through the year. Average daily highs stay between 29 and 30 °C, so no month stands out as a season in the way it would further from the equator.

Counted across a normal year, 358 days a year reach 25 °C, 46 of them reach 30 °C. The warmest reading in the 1991–2020 record is 36 °C, in October.

Rain is strongly seasonal. January averages 325 mm against 56 mm in August — 5.8 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	27.1 °C	325 mm	91 %
February	27.2 °C	305 mm	93 %
March	27.8 °C	303 mm	89 %
April	28.0 °C	247 mm	84 %
May	28.1 °C	139 mm	71 %
June	28.2 °C	83 mm	63 %
July	28.7 °C	68 mm	61 %
August	29.5 °C	56 mm	59 %
September	30.0 °C	83 mm	64 %
October	29.4 °C	224 mm	74 %
November	28.3 °C	313 mm	86 %
December	27.5 °C	313 mm	91 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	27.1 °C	21.1 °C	23.5 °C	30.1 °C	17.6 °C	29	0
February	27.2 °C	21.0 °C	23.5 °C	30.2 °C	18.7 °C	27	0
March	27.8 °C	21.1 °C	23.8 °C	30.2 °C	18.6 °C	31	0
April	28.0 °C	21.1 °C	24.0 °C	30.3 °C	18.3 °C	30	0
May	28.1 °C	21.0 °C	24.2 °C	31.2 °C	16.4 °C	31	0
June	28.2 °C	20.5 °C	24.0 °C	31.1 °C	15.3 °C	30	1
July	28.7 °C	20.0 °C	24.1 °C	32.5 °C	14.9 °C	31	6
August	29.5 °C	20.2 °C	24.5 °C	33.3 °C	16.0 °C	31	12
September	30.0 °C	20.7 °C	24.9 °C	34.4 °C	16.9 °C	30	14
October	29.4 °C	21.2 °C	24.7 °C	35.7 °C	18.1 °C	31	9
November	28.3 °C	21.4 °C	24.1 °C	34.9 °C	18.3 °C	30	3
December	27.5 °C	21.3 °C	23.7 °C	32.3 °C	17.7 °C	30	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	325 mm	29	12 h/day	91 %	90 %	8.7 km/h
February	305 mm	27	12 h/day	93 %	90 %	8.6 km/h
March	303 mm	29	12 h/day	89 %	89 %	8.2 km/h
April	247 mm	27	12 h/day	84 %	89 %	7.4 km/h
May	139 mm	21	12 h/day	71 %	87 %	7.1 km/h
June	83 mm	15	12 h/day	63 %	84 %	7.3 km/h
July	68 mm	11	12 h/day	61 %	78 %	7.9 km/h
August	56 mm	8	12 h/day	59 %	74 %	8.4 km/h
September	83 mm	11	12 h/day	64 %	74 %	8.4 km/h
October	224 mm	20	12 h/day	74 %	80 %	8.1 km/h
November	313 mm	26	12 h/day	86 %	86 %	7.6 km/h
December	313 mm	27	13 h/day	91 %	88 %	8.4 km/h

How Cianjur 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
Cianjur	30 °C	20 °C	2,458 mm	358
Sukabumi · Indonesia	29 °C	19 °C	3,035 mm	340
Padalarang · Indonesia	28 °C	19 °C	2,892 mm	320
Purwakarta · Indonesia	33 °C	22 °C	2,178 mm	365
Cimahi · Indonesia	27 °C	18 °C	2,953 mm	282
Bogor · Indonesia	31 °C	21 °C	2,722 mm	363
Citeureup · Indonesia	32 °C	21 °C	2,800 mm	365

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

QuestionsCommon questions about Cianjur’s climate

When is the best time to visit Cianjur?

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

How hot does Cianjur get?

In September, the warmest month, daily highs average 30 °C. About 46 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 20 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Cianjur?

January, averaging 325 mm over 29 days with rain. The driest month is August with 56 mm. The year as a whole averages 2,458 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 Cianjur 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: -6.822°, 107.139° (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.