Bojnūrd climate

Name: Bojnūrd
Address: IR

Bojnūrd is warmest in July, with average highs of 32 °C, and coldest in January, when nights average -4.7 °C. March is the wettest month (70 mm) and August the driest (4.4 mm). Figures are 1991–2020 climate normals.

Across a full year Bojnūrd averages 357 mm of rain, 133 days above 25 °C and 99 days below freezing.

Iran · population 192,041 · 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 32 °C
Coldest month January -4.7 °C
Driest month August 4 mm
Wettest month March 70 mm
Least cloud August 9 % cloud
Hottest on record July 40 °C
Coldest on record February -24 °C

What to expectBojnūrd through the year

Bojnūrd has a clear annual cycle: average daily highs run from 5.9 °C in January to 32 °C in July, a swing of 25 °C in mean temperature across the year.

Counted across a normal year, 133 days a year reach 25 °C, 69 of them reach 30 °C, 99 nights drop below freezing. The warmest reading in the 1991–2020 record is 40 °C, in July.

Rain is strongly seasonal. March averages 70 mm against 4 mm in August — 16 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	5.9 °C	36 mm	48 %
February	7.3 °C	51 mm	50 %
March	12.9 °C	70 mm	54 %
April	18.9 °C	60 mm	53 %
May	23.9 °C	38 mm	43 %
June	29.4 °C	14 mm	21 %
July	32.2 °C	5 mm	13 %
August	31.3 °C	4 mm	9 %
September	27.4 °C	7 mm	13 %
October	21.0 °C	15 mm	27 %
November	13.5 °C	29 mm	41 %
December	8.5 °C	28 mm	46 %

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	5.9 °C	-4.7 °C	0.2 °C	17.4 °C	-18.7 °C	0	0	28
February	7.3 °C	-4.0 °C	1.5 °C	22.7 °C	-24.3 °C	0	0	24
March	12.9 °C	0.4 °C	6.8 °C	30.7 °C	-17.2 °C	0	0	13
April	18.9 °C	5.8 °C	12.7 °C	31.5 °C	-5.3 °C	4	0	1
May	23.9 °C	10.5 °C	17.7 °C	34.8 °C	-0.5 °C	13	2	0
June	29.4 °C	14.9 °C	22.7 °C	38.4 °C	6.5 °C	26	14	0
July	32.2 °C	18.2 °C	25.5 °C	40.1 °C	11.9 °C	30	24	0
August	31.3 °C	17.0 °C	24.5 °C	38.8 °C	8.2 °C	30	21	0
September	27.4 °C	13.3 °C	20.4 °C	36.2 °C	5.0 °C	23	8	0
October	21.0 °C	7.9 °C	14.4 °C	32.4 °C	-1.5 °C	6	0	0
November	13.5 °C	1.9 °C	7.4 °C	26.6 °C	-9.2 °C	0	0	9
December	8.5 °C	-2.3 °C	2.6 °C	22.1 °C	-16.1 °C	0	0	24

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	36 mm	6	9.9 h/day	48 %	71 %	11 km/h
February	51 mm	8	11 h/day	50 %	71 %	12 km/h
March	70 mm	11	12 h/day	54 %	68 %	12 km/h
April	60 mm	10	13 h/day	53 %	65 %	12 km/h
May	38 mm	8	14 h/day	43 %	58 %	13 km/h
June	14 mm	3	15 h/day	21 %	46 %	14 km/h
July	5 mm	1	15 h/day	13 %	41 %	15 km/h
August	4 mm	1	14 h/day	9 %	37 %	15 km/h
September	7 mm	2	12 h/day	13 %	43 %	13 km/h
October	15 mm	3	11 h/day	27 %	51 %	12 km/h
November	29 mm	5	10 h/day	41 %	62 %	11 km/h
December	28 mm	6	9.6 h/day	46 %	69 %	11 km/h

How Bojnūrd 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
Bojnūrd	32 °C	-4.7 °C	357 mm	133
Ashgabat · Turkmenistan	36 °C	-1.0 °C	270 mm	164
Sabzevar · Iran	36 °C	-1.5 °C	184 mm	176
Neyshābūr · Iran	34 °C	-3.4 °C	294 mm	155
Gonbad-e Kāvūs · Iran	35 °C	1.2 °C	552 mm	172
Shahrud · Iran	32 °C	-2.2 °C	373 mm	133
Mashhad · Iran	33 °C	-4.1 °C	279 mm	150

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

QuestionsCommon questions about Bojnūrd’s climate

When is the best time to visit Bojnūrd?

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 Bojnūrd get?

In July, the warmest month, daily highs average 32 °C. About 69 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 -4.7 °C in January, the coldest month. A normal year has 99 nights below freezing.

Which month is wettest in Bojnūrd?

March, averaging 70 mm over 11 days with rain. The driest month is August with 4 mm. The year as a whole averages 357 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 Bojnūrd 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: 37.475°, 57.329° (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.