Khūy climate

Name: Khūy
Address: IR

Khūy is warmest in August, with average highs of 33 °C, and coldest in January, when nights average -6.3 °C. April is the wettest month (60 mm) and August the driest (5.4 mm). Figures are 1991–2020 climate normals.

Across a full year Khūy averages 371 mm of rain, 129 days above 25 °C and 116 days below freezing.

Iran · population 198,845 · 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 August 33 °C
Coldest month January -6.3 °C
Driest month August 5 mm
Wettest month April 60 mm
Least cloud August 12 % cloud
Hottest on record July 41 °C
Coldest on record December -25 °C

What to expectKhūy through the year

Khūy has a clear annual cycle: average daily highs run from 3.9 °C in January to 33 °C in August, a swing of 27 °C in mean temperature across the year.

Counted across a normal year, 129 days a year reach 25 °C, 78 of them reach 30 °C, 116 nights drop below freezing. The warmest reading in the 1991–2020 record is 41 °C, in July.

Rain is strongly seasonal. April averages 60 mm against 5 mm in August — 11 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	3.9 °C	32 mm	51 %
February	6.6 °C	35 mm	50 %
March	12.2 °C	57 mm	52 %
April	18.3 °C	60 mm	51 %
May	23.5 °C	53 mm	44 %
June	29.3 °C	18 mm	22 %
July	32.9 °C	7 mm	15 %
August	33.0 °C	5 mm	12 %
September	28.1 °C	10 mm	15 %
October	20.9 °C	28 mm	34 %
November	11.9 °C	34 mm	45 %
December	5.7 °C	32 mm	53 %

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	3.9 °C	-6.3 °C	-1.4 °C	12.6 °C	-22.3 °C	0	0	30
February	6.6 °C	-4.6 °C	0.8 °C	17.1 °C	-23.9 °C	0	0	26
March	12.2 °C	-1.0 °C	5.7 °C	25.1 °C	-21.4 °C	0	0	19
April	18.3 °C	4.3 °C	11.7 °C	31.9 °C	-14.2 °C	2	0	2
May	23.5 °C	9.3 °C	16.7 °C	33.5 °C	-1.1 °C	11	1	0
June	29.3 °C	14.4 °C	22.3 °C	38.7 °C	6.4 °C	26	13	0
July	32.9 °C	18.6 °C	26.0 °C	40.9 °C	10.4 °C	31	26	0
August	33.0 °C	18.7 °C	26.0 °C	40.4 °C	12.0 °C	31	26	0
September	28.1 °C	13.8 °C	21.0 °C	37.0 °C	4.5 °C	24	11	0
October	20.9 °C	7.6 °C	14.1 °C	30.6 °C	-0.7 °C	5	0	0
November	11.9 °C	0.7 °C	6.1 °C	22.2 °C	-18.5 °C	0	0	12
December	5.7 °C	-4.3 °C	0.5 °C	17.8 °C	-24.6 °C	0	0	27

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	32 mm	6	9.8 h/day	51 %	71 %	9.4 km/h
February	35 mm	8	11 h/day	50 %	67 %	10 km/h
March	57 mm	10	12 h/day	52 %	65 %	12 km/h
April	60 mm	11	13 h/day	51 %	62 %	14 km/h
May	53 mm	11	14 h/day	44 %	59 %	13 km/h
June	18 mm	5	15 h/day	22 %	47 %	13 km/h
July	7 mm	2	15 h/day	15 %	41 %	12 km/h
August	5 mm	1	14 h/day	12 %	39 %	12 km/h
September	10 mm	2	12 h/day	15 %	44 %	12 km/h
October	28 mm	6	11 h/day	34 %	58 %	11 km/h
November	34 mm	6	10 h/day	45 %	70 %	9.6 km/h
December	32 mm	7	9.5 h/day	53 %	73 %	8.9 km/h

How Khūy 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
Khūy	33 °C	-6.3 °C	371 mm	129
Orūmīyeh · Iran	31 °C	-5.9 °C	361 mm	109
Tabriz · Iran	32 °C	-5.8 °C	386 mm	117
Van · Turkey	29 °C	-8.5 °C	400 mm	79
Marāgheh · Iran	32 °C	-6.3 °C	429 mm	122
Yerevan · Armenia	31 °C	-6.6 °C	335 mm	105
Piranshahr · Iran	33 °C	-6.5 °C	663 mm	123

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

QuestionsCommon questions about Khūy’s climate

When is the best time to visit Khūy?

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, August is the warmest month and August the driest. The month-by-month table above has the full picture.

How hot does Khūy get?

In August, the warmest month, daily highs average 33 °C. About 78 days a year pass 30 °C. The highest value in the 1991–2020 record is 41 °C.

How cold does it get in winter?

Nights average -6.3 °C in January, the coldest month. A normal year has 116 nights below freezing.

Which month is wettest in Khūy?

April, averaging 60 mm over 11 days with rain. The driest month is August with 5 mm. The year as a whole averages 371 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 Khūy 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.