Rengasdengklok climate

Name: Rengasdengklok
Address: ID

Rengasdengklok is warmest in September, with average highs of 32 °C, and coldest in July, when nights average 23 °C. January is the wettest month (344 mm) and August the driest (38 mm). Figures are 1991–2020 climate normals.

Across a full year Rengasdengklok averages 2,338 mm of rain and 365 days above 25 °C.

Indonesia · population 201,463 · 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 32 °C
Coldest month July 23 °C
Driest month August 38 mm
Wettest month January 344 mm
Least cloud August 54 % cloud
Hottest on record October 37 °C
Coldest on record July 20 °C

What to expectRengasdengklok through the year

Rengasdengklok changes little through the year. Average daily highs stay between 30 and 32 °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, 183 of them reach 30 °C. The warmest reading in the 1991–2020 record is 37 °C, in October.

Rain is strongly seasonal. January averages 344 mm against 38 mm in August — 9.0 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.8 °C	344 mm	90 %
February	28.7 °C	329 mm	92 %
March	29.5 °C	298 mm	86 %
April	29.8 °C	238 mm	80 %
May	30.1 °C	136 mm	67 %
June	30.1 °C	93 mm	59 %
July	30.3 °C	66 mm	56 %
August	31.0 °C	38 mm	54 %
September	31.7 °C	65 mm	61 %
October	31.6 °C	158 mm	72 %
November	30.5 °C	266 mm	84 %
December	29.5 °C	307 mm	90 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	28.8 °C	23.8 °C	25.9 °C	32.5 °C	22.1 °C	31	5
February	28.7 °C	23.8 °C	25.9 °C	31.1 °C	21.8 °C	28	3
March	29.5 °C	23.9 °C	26.3 °C	32.6 °C	22.1 °C	31	8
April	29.8 °C	24.1 °C	26.5 °C	31.7 °C	22.1 °C	30	13
May	30.1 °C	24.1 °C	26.8 °C	32.5 °C	21.5 °C	31	17
June	30.1 °C	23.7 °C	26.6 °C	33.1 °C	20.4 °C	30	15
July	30.3 °C	23.2 °C	26.5 °C	34.0 °C	19.7 °C	31	17
August	31.0 °C	23.3 °C	26.8 °C	34.4 °C	20.7 °C	31	25
September	31.7 °C	23.7 °C	27.4 °C	35.6 °C	20.6 °C	30	27
October	31.6 °C	24.3 °C	27.4 °C	36.7 °C	22.4 °C	31	25
November	30.5 °C	24.3 °C	26.8 °C	35.9 °C	21.6 °C	30	18
December	29.5 °C	24.0 °C	26.3 °C	34.5 °C	21.9 °C	31	11

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	344 mm	29	12 h/day	90 %	86 %	16 km/h
February	329 mm	27	12 h/day	92 %	87 %	16 km/h
March	298 mm	29	12 h/day	86 %	86 %	13 km/h
April	238 mm	27	12 h/day	80 %	86 %	11 km/h
May	136 mm	21	12 h/day	67 %	84 %	11 km/h
June	93 mm	15	12 h/day	59 %	82 %	11 km/h
July	66 mm	11	12 h/day	56 %	78 %	13 km/h
August	38 mm	8	12 h/day	54 %	75 %	14 km/h
September	65 mm	10	12 h/day	61 %	74 %	14 km/h
October	158 mm	20	12 h/day	72 %	77 %	13 km/h
November	266 mm	26	12 h/day	84 %	82 %	12 km/h
December	307 mm	28	12 h/day	90 %	84 %	14 km/h

How Rengasdengklok 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
Rengasdengklok	32 °C	23 °C	2,338 mm	365
Karawang · Indonesia	33 °C	22 °C	2,328 mm	365
Bekasi · Indonesia	32 °C	23 °C	2,205 mm	365
Cileungsir · Indonesia	32 °C	22 °C	2,829 mm	365
Purwakarta · Indonesia	33 °C	22 °C	2,178 mm	365
Jakarta · Indonesia	31 °C	23 °C	2,035 mm	365
Citeureup · Indonesia	32 °C	21 °C	2,800 mm	365

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

QuestionsCommon questions about Rengasdengklok’s climate

When is the best time to visit Rengasdengklok?

That depends on what you want, so the honest answer is a comparison rather than a single month. January, February, March 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 Rengasdengklok get?

In September, the warmest month, daily highs average 32 °C. About 183 days a year pass 30 °C. The highest value in the 1991–2020 record is 37 °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 Rengasdengklok?

January, averaging 344 mm over 29 days with rain. The driest month is August with 38 mm. The year as a whole averages 2,338 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 Rengasdengklok 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
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.