Medan climate

Name: Medan
Address: ID

Medan is warmest in June, with average highs of 30 °C, and coldest in February, when nights average 22 °C. October is the wettest month (400 mm) and February the driest (161 mm). Figures are 1991–2020 climate normals.

Across a full year Medan averages 3,278 mm of rain and 364 days above 25 °C.

Indonesia · population 2,486,283 · 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 June 30 °C
Coldest month February 22 °C
Driest month February 161 mm
Wettest month October 400 mm
Least cloud February 78 % cloud
Hottest on record August 35 °C
Coldest on record February 18 °C

What to expectMedan through the year

Medan 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, 364 days a year reach 25 °C, 112 of them reach 30 °C. The warmest reading in the 1991–2020 record is 35 °C, in August.

Rain is strongly seasonal. October averages 400 mm against 161 mm in February — 2.5 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.6 °C	218 mm	83 %
February	29.2 °C	161 mm	78 %
March	29.9 °C	203 mm	81 %
April	30.0 °C	258 mm	87 %
May	30.2 °C	288 mm	89 %
June	30.2 °C	218 mm	83 %
July	30.0 °C	218 mm	84 %
August	29.8 °C	258 mm	87 %
September	29.5 °C	360 mm	90 %
October	29.0 °C	400 mm	93 %
November	28.5 °C	381 mm	94 %
December	28.2 °C	315 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	28.6 °C	21.8 °C	24.9 °C	31.4 °C	19.5 °C	31	1
February	29.2 °C	21.8 °C	25.3 °C	31.7 °C	18.3 °C	28	4
March	29.9 °C	22.3 °C	25.8 °C	33.1 °C	19.2 °C	31	14
April	30.0 °C	22.8 °C	25.9 °C	33.5 °C	20.0 °C	30	14
May	30.2 °C	23.1 °C	26.2 °C	33.4 °C	21.2 °C	31	18
June	30.2 °C	22.7 °C	26.1 °C	33.4 °C	20.7 °C	30	18
July	30.0 °C	22.4 °C	25.8 °C	33.5 °C	20.0 °C	31	15
August	29.8 °C	22.4 °C	25.7 °C	35.1 °C	20.3 °C	31	13
September	29.5 °C	22.4 °C	25.4 °C	32.5 °C	20.6 °C	30	9
October	29.0 °C	22.4 °C	25.2 °C	32.8 °C	20.2 °C	31	4
November	28.5 °C	22.4 °C	24.9 °C	31.4 °C	20.7 °C	30	1
December	28.2 °C	22.2 °C	24.8 °C	31.2 °C	20.0 °C	30	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	218 mm	25	12 h/day	83 %	88 %	8.7 km/h
February	161 mm	21	12 h/day	78 %	87 %	8.8 km/h
March	203 mm	24	12 h/day	81 %	87 %	8.6 km/h
April	258 mm	26	12 h/day	87 %	89 %	8.2 km/h
May	288 mm	27	12 h/day	89 %	88 %	7.9 km/h
June	218 mm	23	12 h/day	83 %	87 %	7.9 km/h
July	218 mm	24	12 h/day	84 %	87 %	8.1 km/h
August	258 mm	26	12 h/day	87 %	87 %	8.3 km/h
September	360 mm	28	12 h/day	90 %	89 %	8.0 km/h
October	400 mm	29	12 h/day	93 %	90 %	8.1 km/h
November	381 mm	29	12 h/day	94 %	91 %	8.3 km/h
December	315 mm	28	12 h/day	91 %	90 %	9.2 km/h

How Medan 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
Medan	30 °C	22 °C	3,278 mm	364
Sunggal · Indonesia	30 °C	22 °C	3,176 mm	364
Binjai · Indonesia	31 °C	21 °C	3,209 mm	363
Percut · Indonesia	30 °C	23 °C	3,221 mm	364
Perbaungan · Indonesia	30 °C	23 °C	2,632 mm	364
Pematangsiantar · Indonesia	28 °C	20 °C	3,293 mm	352
Langsa · Indonesia	30 °C	23 °C	2,115 mm	364

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

QuestionsCommon questions about Medan’s climate

When is the best time to visit Medan?

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

How hot does Medan get?

In June, the warmest month, daily highs average 30 °C. About 112 days a year pass 30 °C. The highest value in the 1991–2020 record is 35 °C.

How cold does it get in winter?

Nights average 22 °C in February, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Medan?

October, averaging 400 mm over 29 days with rain. The driest month is February with 161 mm. The year as a whole averages 3,278 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 Medan 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: 3.583°, 98.667° (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.