Sanandaj climate

Name: Sanandaj
Address: IR

Sanandaj is warmest in July, with average highs of 35 °C, and coldest in January, when nights average -7.1 °C. March is the wettest month (73 mm) and August the driest (0.4 mm). Figures are 1991–2020 climate normals.

Across a full year Sanandaj averages 428 mm of rain, 140 days above 25 °C and 100 days below freezing.

Iran · population 349,176 · 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 July 35 °C
Coldest month January -7.1 °C
Driest month August 0 mm
Wettest month March 73 mm
Least cloud September 6 % cloud
Hottest on record July 40 °C
Coldest on record January -27 °C

What to expectSanandaj through the year

Sanandaj has a clear annual cycle: average daily highs run from 2.2 °C in January to 35 °C in July, a swing of 30 °C in mean temperature across the year.

Counted across a normal year, 140 days a year reach 25 °C, 97 of them reach 30 °C, 100 nights drop below freezing. The warmest reading in the 1991–2020 record is 40 °C, in July.

Rain is strongly seasonal. March averages 73 mm against 0 mm in August — 190 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	2.2 °C	63 mm	60 %
February	3.8 °C	65 mm	56 %
March	10.7 °C	73 mm	51 %
April	17.5 °C	60 mm	48 %
May	23.7 °C	28 mm	33 %
June	30.9 °C	2 mm	9 %
July	35.2 °C	1 mm	9 %
August	35.1 °C	under 1 mm	8 %
September	30.0 °C	1 mm	6 %
October	22.5 °C	26 mm	28 %
November	13.0 °C	51 mm	44 %
December	6.3 °C	56 mm	56 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	2.2 °C	-7.1 °C	-2.4 °C	15.0 °C	-26.8 °C	0	0	29
February	3.8 °C	-5.9 °C	-0.9 °C	16.7 °C	-24.2 °C	0	0	25
March	10.7 °C	-0.3 °C	5.3 °C	24.9 °C	-19.3 °C	0	0	15
April	17.5 °C	5.6 °C	11.7 °C	28.8 °C	-10.5 °C	1	0	2
May	23.7 °C	10.7 °C	17.6 °C	33.8 °C	0.6 °C	12	1	0
June	30.9 °C	15.7 °C	23.9 °C	38.3 °C	8.5 °C	29	19	0
July	35.2 °C	18.7 °C	27.5 °C	39.8 °C	11.3 °C	31	31	0
August	35.1 °C	18.4 °C	27.4 °C	39.3 °C	10.1 °C	31	30	0
September	30.0 °C	14.3 °C	22.5 °C	36.8 °C	4.2 °C	28	16	0
October	22.5 °C	9.1 °C	15.8 °C	30.3 °C	-1.0 °C	8	0	0
November	13.0 °C	2.2 °C	7.3 °C	22.9 °C	-16.8 °C	0	0	7
December	6.3 °C	-3.3 °C	1.3 °C	19.5 °C	-24.7 °C	0	0	22

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	63 mm	9	10 h/day	60 %	79 %	9.3 km/h
February	65 mm	9	11 h/day	56 %	79 %	9.7 km/h
March	73 mm	10	12 h/day	51 %	69 %	13 km/h
April	60 mm	10	13 h/day	48 %	60 %	16 km/h
May	28 mm	6	14 h/day	33 %	47 %	16 km/h
June	2 mm	0	15 h/day	9 %	29 %	15 km/h
July	1 mm	0	14 h/day	9 %	26 %	14 km/h
August	under 1 mm	0	14 h/day	8 %	24 %	14 km/h
September	1 mm	0	12 h/day	6 %	27 %	14 km/h
October	26 mm	5	11 h/day	28 %	42 %	14 km/h
November	51 mm	8	10 h/day	44 %	62 %	12 km/h
December	56 mm	8	9.8 h/day	56 %	73 %	9.8 km/h

How Sanandaj 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
Sanandaj	35 °C	-7.1 °C	428 mm	140
Kermanshah · Iran	37 °C	-2.9 °C	500 mm	154
Saqqez · Iran	34 °C	-6.8 °C	413 mm	130
Sulaymaniyah · Iraq	39 °C	-1.4 °C	712 mm	172
Hamadān · Iran	35 °C	-4.9 °C	410 mm	137
Būkān · Iran	35 °C	-5.1 °C	324 mm	141
Kelar · Iraq	44 °C	4.5 °C	487 mm	214

Where Sanandaj ranks

Ranking	Position	Value
Places with the best weather in Asia in May	10thof 50	94/100

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

QuestionsCommon questions about Sanandaj’s climate

When is the best time to visit Sanandaj?

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

How hot does Sanandaj get?

In July, the warmest month, daily highs average 35 °C. About 97 days a year pass 30 °C. The highest value in the 1991–2020 record is 40 °C.

How cold does it get in winter?

Nights average -7.1 °C in January, the coldest month. A normal year has 100 nights below freezing.

Which month is wettest in Sanandaj?

March, averaging 73 mm over 10 days with rain. The driest month is August with 0 mm. The year as a whole averages 428 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 Sanandaj 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.