Semey climate

Name: Semey
Address: KZ

Semey is warmest in July, with average highs of 28 °C, and coldest in January, when nights average -20 °C. July is the wettest month (45 mm) and January the driest (17 mm). Figures are 1991–2020 climate normals.

Across a full year Semey averages 301 mm of rain, 80 days above 25 °C and 179 days below freezing.

Kazakhstan · population 292,780 · 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 28 °C
Coldest month January -20 °C
Driest month January 17 mm
Wettest month July 45 mm
Least cloud August 42 % cloud
Hottest on record July 42 °C
Coldest on record January -44 °C

What to expectSemey through the year

Semey has a clear annual cycle: average daily highs run from -11 °C in January to 28 °C in July, a swing of 38 °C in mean temperature across the year.

Counted across a normal year, 80 days a year reach 25 °C, 29 of them reach 30 °C, 179 nights drop below freezing. The warmest reading in the 1991–2020 record is 42 °C, in July.

Rain is spread fairly evenly through the year, from 17 mm in January to 45 mm in July. There is no dry season to aim for.

Month by month

Month	Avg high	Rainfall	Cloud
January	-11.2 °C	17 mm	68 %
February	-8.1 °C	17 mm	68 %
March	0.4 °C	22 mm	61 %
April	13.5 °C	22 mm	53 %
May	21.4 °C	26 mm	47 %
June	26.9 °C	31 mm	47 %
July	28.1 °C	45 mm	49 %
August	26.3 °C	23 mm	42 %
September	19.6 °C	20 mm	47 %
October	10.9 °C	25 mm	58 %
November	-0.4 °C	29 mm	68 %
December	-7.9 °C	23 mm	71 %

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	-11.2 °C	-20.2 °C	-15.3 °C	6.1 °C	-44.0 °C	0	0	31
February	-8.1 °C	-18.3 °C	-12.7 °C	7.4 °C	-41.2 °C	0	0	28
March	0.4 °C	-10.7 °C	-4.8 °C	22.4 °C	-31.6 °C	0	0	30
April	13.5 °C	-0.1 °C	7.2 °C	31.4 °C	-17.4 °C	1	0	15
May	21.4 °C	7.6 °C	15.3 °C	35.9 °C	-3.0 °C	9	2	1
June	26.9 °C	14.4 °C	21.3 °C	38.0 °C	3.9 °C	21	9	0
July	28.1 °C	16.6 °C	22.8 °C	41.8 °C	7.5 °C	24	11	0
August	26.3 °C	14.1 °C	20.8 °C	41.6 °C	3.8 °C	19	7	0
September	19.6 °C	7.5 °C	13.9 °C	38.3 °C	-3.3 °C	6	1	1
October	10.9 °C	0.6 °C	5.8 °C	28.1 °C	-16.9 °C	0	0	14
November	-0.4 °C	-8.5 °C	-4.4 °C	19.3 °C	-36.2 °C	0	0	28
December	-7.9 °C	-16.3 °C	-11.6 °C	6.6 °C	-41.3 °C	0	0	31

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	17 mm	5	8.5 h/day	68 %	77 %	16 km/h
February	17 mm	5	10 h/day	68 %	78 %	17 km/h
March	22 mm	6	12 h/day	61 %	76 %	17 km/h
April	22 mm	5	14 h/day	53 %	58 %	18 km/h
May	26 mm	7	15 h/day	47 %	48 %	19 km/h
June	31 mm	7	16 h/day	47 %	48 %	18 km/h
July	45 mm	10	16 h/day	49 %	54 %	17 km/h
August	23 mm	6	15 h/day	42 %	51 %	17 km/h
September	20 mm	5	13 h/day	47 %	53 %	17 km/h
October	25 mm	6	11 h/day	58 %	62 %	17 km/h
November	29 mm	7	9.0 h/day	68 %	71 %	17 km/h
December	23 mm	7	8.0 h/day	71 %	78 %	17 km/h

How Semey 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
Semey	28 °C	-20 °C	301 mm	80
Rubtsovsk · Russia	26 °C	-19 °C	420 mm	62
Ust-Kamenogorsk · Kazakhstan	27 °C	-19 °C	549 mm	65
Pavlodar · Kazakhstan	26 °C	-20 °C	303 mm	62
Barnaul · Russia	25 °C	-20 °C	526 mm	42
Biysk · Russia	26 °C	-20 °C	553 mm	50
Tacheng · China	29 °C	-14 °C	324 mm	91

Where Semey ranks

Ranking	Position	Value
Places with the best weather in Asia in August	10th of 50	91/100
The coolest places in Asia in February	12th of 50	-8.1 °C
The coolest places in Asia in March	12th of 50	0.4 °C
The coolest places in Asia in January	20th of 50	-11 °C
The coolest places in Asia in October	21st of 50	11 °C
The coolest places in Asia in November	23rd of 50	-0.4 °C

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

QuestionsCommon questions about Semey’s climate

When is the best time to visit Semey?

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

How hot does Semey get?

In July, the warmest month, daily highs average 28 °C. About 29 days a year pass 30 °C. The highest value in the 1991–2020 record is 42 °C.

How cold does it get in winter?

Nights average -20 °C in January, the coldest month. A normal year has 179 nights below freezing.

Which month is wettest in Semey?

July, averaging 45 mm over 10 days with rain. The driest month is January with 17 mm. The year as a whole averages 301 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 Semey 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: 50.421°, 80.250° (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.