Batu climate

Name: Batu
Address: ID

Batu is warmest in October, with average highs of 28 °C, and coldest in August, when nights average 18 °C. January is the wettest month (501 mm) and August the driest (40 mm). Figures are 1991–2020 climate normals.

Across a full year Batu averages 3,088 mm of rain and 313 days above 25 °C.

Indonesia · population 225,408 · 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 28 °C
Coldest month August 18 °C
Driest month August 40 mm
Wettest month January 501 mm
Least cloud August 61 % cloud
Hottest on record October 33 °C
Coldest on record July 14 °C

What to expectBatu through the year

Batu changes little through the year. Average daily highs stay between 27 and 28 °C, so no month stands out as a season in the way it would further from the equator.

Counted across a normal year, 313 days a year reach 25 °C, 10 of them reach 30 °C. The warmest reading in the 1991–2020 record is 33 °C, in October.

Rain is strongly seasonal. January averages 501 mm against 40 mm in August — 13 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	25.6 °C	501 mm	93 %
February	25.7 °C	495 mm	94 %
March	25.9 °C	468 mm	88 %
April	26.1 °C	302 mm	83 %
May	26.4 °C	145 mm	71 %
June	26.3 °C	73 mm	65 %
July	26.3 °C	54 mm	62 %
August	27.1 °C	40 mm	61 %
September	28.2 °C	60 mm	62 %
October	28.2 °C	159 mm	71 %
November	26.9 °C	342 mm	84 %
December	25.7 °C	448 mm	92 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	25.6 °C	20.0 °C	22.1 °C	28.9 °C	17.8 °C	22	0
February	25.7 °C	20.0 °C	22.1 °C	28.1 °C	17.9 °C	21	0
March	25.9 °C	20.0 °C	22.3 °C	28.5 °C	17.9 °C	26	0
April	26.1 °C	19.9 °C	22.4 °C	28.5 °C	16.9 °C	26	0
May	26.4 °C	19.4 °C	22.5 °C	28.9 °C	14.1 °C	29	0
June	26.3 °C	18.7 °C	22.0 °C	29.2 °C	14.0 °C	26	0
July	26.3 °C	17.8 °C	21.6 °C	29.1 °C	13.6 °C	26	0
August	27.1 °C	17.6 °C	21.8 °C	29.9 °C	13.8 °C	29	0
September	28.2 °C	18.5 °C	22.7 °C	31.2 °C	14.1 °C	29	2
October	28.2 °C	19.5 °C	23.2 °C	32.5 °C	15.4 °C	30	6
November	26.9 °C	20.2 °C	22.9 °C	32.2 °C	17.2 °C	26	2
December	25.7 °C	20.1 °C	22.2 °C	29.3 °C	17.0 °C	23	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	501 mm	29	13 h/day	93 %	90 %	7.3 km/h
February	495 mm	28	12 h/day	94 %	90 %	7.6 km/h
March	468 mm	28	12 h/day	88 %	90 %	6.7 km/h
April	302 mm	25	12 h/day	83 %	89 %	6.2 km/h
May	145 mm	18	12 h/day	71 %	85 %	6.0 km/h
June	73 mm	13	12 h/day	65 %	83 %	6.2 km/h
July	54 mm	10	12 h/day	62 %	80 %	6.3 km/h
August	40 mm	8	12 h/day	61 %	77 %	6.6 km/h
September	60 mm	8	12 h/day	62 %	75 %	7.1 km/h
October	159 mm	16	12 h/day	71 %	77 %	7.0 km/h
November	342 mm	23	12 h/day	84 %	85 %	6.3 km/h
December	448 mm	28	13 h/day	92 %	90 %	6.9 km/h

How Batu 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
Batu	28 °C	18 °C	3,088 mm	313
Singosari · Indonesia	30 °C	19 °C	2,303 mm	359
Malang · Indonesia	30 °C	19 °C	2,341 mm	360
Blitar · Indonesia	30 °C	20 °C	2,733 mm	364
Pasuruan · Indonesia	32 °C	22 °C	1,710 mm	365
Kediri · Indonesia	31 °C	21 °C	2,075 mm	365
Surabaya · Indonesia	33 °C	24 °C	1,695 mm	365

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

QuestionsCommon questions about Batu’s climate

When is the best time to visit Batu?

That depends on what you want, so the honest answer is a comparison rather than a single month. June, July, August 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 Batu get?

In October, the warmest month, daily highs average 28 °C. About 10 days a year pass 30 °C. The highest value in the 1991–2020 record is 33 °C.

How cold does it get in winter?

Nights average 18 °C in August, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Batu?

January, averaging 501 mm over 29 days with rain. The driest month is August with 40 mm. The year as a whole averages 3,088 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 Batu 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: -7.870°, 112.528° (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.