Semey, Kazakhstan climate

Dfb Warm-summer humid continental

Semey has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 28°C, while the coldest is January averaging around −21°C at night. Around 282 mm of precipitation falls each year, peaking in July (53 mm) and easing off in September (15 mm). At latitude 50°N, day length swings from 7.8 hours in midwinter to 16.2 hours at midsummer.

☀️ Summers

Warm

Highs near 28°C in July.

About 19 days a year above 32 °C

❄️ Winters

Bitterly cold

Lows near −21°C in January.

About 155 freezing nights a year

🌧️ Rain

Fairly dry

About 282 mm of rain a year.

Wettest in July

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+0.4 °C vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Semey climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	−10	−8	0	14	22	27	28	27	21	12	0	−7
Avg temp (°C)	−16	−13	−5	8	15	20	22	20	13	6	−4	−12
Avg low (°C)	−21	−19	−11	0	7	12	14	12	5	−1	−9	−16
Precipitation (mm)	16	17	17	19	25	33	53	25	15	16	25	23

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	−10	−8	0	14	22	27
Avg temp (°C)	−16	−13	−5	8	15	20
Avg low (°C)	−21	−19	−11	0	7	12
Precipitation (mm)	16	17	17	19	25	33

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	28	27	21	12	0	−7
Avg temp (°C)	22	20	13	6	−4	−12
Avg low (°C)	14	12	5	−1	−9	−16
Precipitation (mm)	53	25	15	16	25	23

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	5	5	4	3	4	4	6	4	3	3	5	6
Days with high ≥ 32°C (days)	—	—	—	0.2	1	5	6	5	0.7	—	—	—
Days with low ≤ 0°C (days)	26	24	25	13	2	0.0	—	—	4	15	22	25

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	5	5	4	3	4	4
Days with high ≥ 32°C (days)	—	—	—	0.2	1	5
Days with low ≤ 0°C (days)	26	24	25	13	2	0.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	6	4	3	3	5	6
Days with high ≥ 32°C (days)	6	5	0.7	—	—	—
Days with low ≤ 0°C (days)	—	—	4	15	22	25

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	63	63	64	62	56	57	61	52	55	63	69	68
Clear days (≤ 30% cloud)	2	3	3	5	8	7	6	9	8	7	4	2
Partly cloudy days (30–70%)	16	14	13	11	12	12	11	12	10	9	9	14
Cloudy days (≥ 70%)	13	11	14	14	12	12	14	11	12	16	17	15
Relative humidity (%)	95	95	86	60	50	47	48	48	52	63	79	91
Wind speed (m/s)	2.7	2.8	2.9	3.0	2.9	2.7	2.4	2.4	2.5	2.6	2.8	2.9

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	63	63	64	62	56	57
Clear days (≤ 30% cloud)	2	3	3	5	8	7
Partly cloudy days (30–70%)	16	14	13	11	12	12
Cloudy days (≥ 70%)	13	11	14	14	12	12
Relative humidity (%)	95	95	86	60	50	47
Wind speed (m/s)	2.7	2.8	2.9	3.0	2.9	2.7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	61	52	55	63	69	68
Clear days (≤ 30% cloud)	6	9	8	7	4	2
Partly cloudy days (30–70%)	11	12	10	9	9	14
Cloudy days (≥ 70%)	14	11	12	16	17	15
Relative humidity (%)	48	48	52	63	79	91
Wind speed (m/s)	2.4	2.4	2.5	2.6	2.8	2.9

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Semej, a weather station, about 4 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →