Altay weather in September

In September, Altay sees average daytime highs of 18°C and overnight lows near 4°C, with 68 mm of precipitation across 8 wet days and about 12.4 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 14°C by the end. The sky is clear or mostly clear about 43% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Altay's 2nd-clearest and 4th-windiest month. For the whole year in context, see Altay's year-round climate.

Daytime high: 18°; 5th warmest
Overnight low: 4°; 8th coldest
Precipitation: 68 mm; 8 wet days
Daylight: 12 h 24 min; 6:06 AM – 6:28 PM
Cloud cover: 46%; 2nd clearest
Wind: 5 km/h; 4th windiest
Solar energy: 4.02 kWh/m²
Travel score: 5.9; out of 10

Altay is town in Kazakhstan.

Founded: 1791

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← August Altay year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 14°C by the end.

A typical September day in Altay reaches about 18°C in the afternoon and slips back to 4°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 24°C. Set against its neighbours, September runs about 6°C cooler than August and about 9°C warmer than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	21	21	21	20	20	20	20	20	19	19	19	18	18	18	18	17	17	17	17	16	16	16	16	15	15	15	15	14	14	14
Avg low (°C)	7	7	7	7	7	6	6	6	6	5	5	5	5	5	4	4	4	4	4	3	3	3	3	3	2	2	2	2	2	2

	Avg high (°C)	Avg low (°C)
1	21	7
2	21	7
3	21	7
4	20	7
5	20	7
6	20	6
7	20	6
8	20	6
9	19	6
10	19	5
11	19	5
12	18	5
13	18	5
14	18	5
15	18	4
16	17	4
17	17	4
18	17	4
19	17	4
20	16	3
21	16	3
22	16	3
23	16	3
24	15	3
25	15	2
26	15	2
27	15	2
28	14	2
29	14	2
30	14	2

How September really feels in Altay

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Altay weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	-12° / -21°	49	9.3	10.3	8.4	0.0
Feb	-8° / -19°	41	8.2	9	9.8	0.0
Mar	0° / -11°	47	8.4	8.1	11.5	0.0
Apr	11° / -2°	66	9.7	3.6	13.5	2.8
May	18° / 5°	77	9.9	0.7	15.1	6.0
Jun	23° / 11°	82	10.5	0	16	6.8
Jul	25° / 13°	103	12.1	0	15.7	6.7
Aug	23° / 10°	76	9.3	0	14.2	7.3
Sep	18° / 4°	68	8	0.4	12.4	5.9
Oct	9° / -2°	85	11.2	5.6	10.5	1.8
Nov	-2° / -11°	83	11.1	11.1	8.8	0.0
Dec	-10° / -18°	70	11.8	13.3	8	0.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to cloud over as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	69	69	69	69	68	68	68	68	67	66	65	65	64	62	62	61	61	59	59	58	58	57	56	56	55	54	54	53	54	53
Cloudier (%)	31	31	31	31	32	32	32	32	33	34	35	35	36	38	38	39	39	41	41	42	42	43	44	44	45	46	46	47	46	47

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	69	31
4	69	31
5	68	32
6	68	32
7	68	32
8	68	32
9	67	33
10	66	34
11	65	35
12	65	35
13	64	36
14	62	38
15	62	38
16	61	39
17	61	39
18	59	41
19	59	41
20	58	42
21	58	42
22	57	43
23	56	44
24	56	44
25	55	45
26	54	46
27	54	46
28	53	47
29	54	46
30	53	47

Chance of precipitation in September

Any precipitationSnow

Altay gets around 68 mm of rain and snow over 8 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 27% and peaks near 31% on the wettest days, and about 0 day brings snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	27	27	27	27	26	26	26	26	25	25	25	25	25	26	26	26	27	27	27	28	28	28	29	29	30	30	30	31	31	31
Snow chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	2	2	2	2	3	3	3	4	4	4	5	5

	Rain chance (%)	Snow chance (%)
1	27	0
2	27	0
3	27	0
4	27	0
5	26	0
6	26	0
7	26	0
8	26	0
9	25	0
10	25	0
11	25	0
12	25	0
13	25	0
14	26	0
15	26	1
16	26	1
17	27	1
18	27	1
19	27	2
20	28	2
21	28	2
22	28	2
23	29	3
24	29	3
25	30	3
26	30	4
27	30	4
28	31	4
29	31	5
30	31	5

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	97	98	98	99	99	99	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Comfortable (%)	3	2	2	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)
1	97	3
2	98	2
3	98	2
4	99	1
5	99	1
6	99	1
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	4	4	4	4	4	4	4	4
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	calm
30	4	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 18 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over September. Sunrise moves from 5:44 AM to 6:28 AM, and sunset from 7:02 PM to 5:57 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	13.3	13.2	13.2	13.1	13.1	13.0	12.9	12.9	12.8	12.7	12.7	12.6	12.6	12.5	12.4	12.4	12.3	12.2	12.2	12.1	12.0	12.0	11.9	11.9	11.8	11.7	11.7	11.6	11.5	11.5
Sunrise (AM)	5:44	5:45	5:47	5:48	5:50	5:51	5:53	5:54	5:56	5:57	5:59	6:00	6:02	6:03	6:05	6:06	6:08	6:09	6:11	6:12	6:14	6:16	6:17	6:19	6:20	6:22	6:23	6:25	6:26	6:28
Sunset (PM)	7:02	7:00	6:57	6:55	6:53	6:51	6:49	6:46	6:44	6:42	6:40	6:37	6:35	6:33	6:31	6:28	6:26	6:24	6:21	6:19	6:17	6:15	6:12	6:10	6:08	6:06	6:03	6:01	5:59	5:57

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	13.3	5:44	7:02
2	13.2	5:45	7:00
3	13.2	5:47	6:57
4	13.1	5:48	6:55
5	13.1	5:50	6:53
6	13.0	5:51	6:51
7	12.9	5:53	6:49
8	12.9	5:54	6:46
9	12.8	5:56	6:44
10	12.7	5:57	6:42
11	12.7	5:59	6:40
12	12.6	6:00	6:37
13	12.6	6:02	6:35
14	12.5	6:03	6:33
15	12.4	6:05	6:31
16	12.4	6:06	6:28
17	12.3	6:08	6:26
18	12.2	6:09	6:24
19	12.2	6:11	6:21
20	12.1	6:12	6:19
21	12.0	6:14	6:17
22	12.0	6:16	6:15
23	11.9	6:17	6:12
24	11.9	6:19	6:10
25	11.8	6:20	6:08
26	11.7	6:22	6:06
27	11.7	6:23	6:03
28	11.6	6:25	6:01
29	11.5	6:26	5:59
30	11.5	6:28	5:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.02 kWh/m².

For context, solar energy here swings from a low near 1 kWh/m² to a high of 6.5 kWh/m² in June across the year — September's 4.02 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	4.8	4.7	4.7	4.6	4.6	4.5	4.5	4.4	4.4	4.3	4.3	4.2	4.2	4.1	4.0	4.0	3.9	3.9	3.8	3.8	3.7	3.6	3.6	3.5	3.5	3.4	3.3	3.3	3.2	3.1
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	4.8	Bright
2	4.7	Bright
3	4.7	Bright
4	4.6	Bright
5	4.6	Bright
6	4.5	Bright
7	4.5	Bright
8	4.4	Bright
9	4.4	Bright
10	4.3	Bright
11	4.3	Bright
12	4.2	Bright
13	4.2	Bright
14	4.1	Bright
15	4.0	Bright
16	4.0	Moderate
17	3.9	Moderate
18	3.9	Moderate
19	3.8	Moderate
20	3.8	Moderate
21	3.7	Moderate
22	3.6	Moderate
23	3.6	Moderate
24	3.5	Moderate
25	3.5	Moderate
26	3.4	Moderate
27	3.3	Moderate
28	3.3	Moderate
29	3.2	Moderate
30	3.1	Moderate

Planning a trip in September

Is September a good time to visit Altay?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.9

Sightseeing

5th-best month of the year

1.9

Beach & pool

5th-best month of the year

September is a reasonable time to visit Altay for sightseeing.

What to pack for Altay in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Altay sees daytime highs around 18°C and nights near 4°C. Worth packing: a warm layer and rain gear. About 8 days see rain.

a warm layerrain gear

UV index in Altay in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Altay peaks around July 19 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	3	5	7	6	7	7	4	2	1	1
Level	Low	Low	Moderate	High	Very high	High	Very high	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Low
Mar	3	Moderate
Apr	5	High
May	7	Very high
Jun	6	High
Jul	7	Very high
Aug	7	High
Sep	4	Moderate
Oct	2	Moderate
Nov	1	Low
Dec	1	Low

Air quality in Altay in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Altay is worst in April — around 18 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (December, 4 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	7	10	13	18	11	8	10	9	9	10	8	4
Level	Good	Good	Moderate	Moderate	Good	Good	Good	Good	Good	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	7	Good
Feb	10	Good
Mar	13	Moderate
Apr	18	Moderate
May	11	Good
Jun	8	Good
Jul	10	Good
Aug	9	Good
Sep	9	Good
Oct	10	Good
Nov	8	Good
Dec	4	Good

Location & terrain

Where is Altay?

Altay sits at 49.7°N, 84.3°E, 460 m above sea level, in Kazakhstan. The nearest listed city is Ridder, 86 km away.

Topography around Altay

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Altay.

Within 3 km, the terrain around Altay has significant variations in elevation — a maximum elevation change of 264 m around an average of 505 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 908 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,387 m.

The land around Altay is covered by trees (43%) and grassland (25%) within 3 km, grassland (46%), cropland (27%) and trees (23%) within 16 km, and grassland (52%) and trees (34%) within 80 km.

3 km

264 m

trees 43%

16 km

908 m

grassland 46%

80 km

2,387 m

grassland 52%

treesgrasslandcroplandartificial surfacesbare terrainwatermoss and lichen

← August Altay year-round climate October →Best places to visit in September

September weather nearby: Ridder 86 km · Ust-Kamenogorsk 121 km · Shemonaikha 194 km · Kalbatau 199 km · Gornyak 242 km · Zaysan 256 km · Gorno-Altaysk 274 km · Mayma 277 km

Kazakhstan travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 33% of US; price level, 2025
GDP per capita: $14,692; 2025
Happiness: 6.6 / 10; World Happiness, 2025
Safe drinking water: 92%; of population, 2024
Homicide rate: 2.6; per 100k, 2022
Road deaths: 12.7; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Very low; EF EPI 417
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Altay (49.7363°, 84.2542°, elevation 460 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	21	7
2	21	7
3	21	7
4	20	7
5	20	7
6	20	6
7	20	6
8	20	6
9	19	6
10	19	5
11	19	5
12	18	5
13	18	5
14	18	5
15	18	4
16	17	4
17	17	4
18	17	4
19	17	4
20	16	3
21	16	3
22	16	3
23	16	3
24	15	3
25	15	2
26	15	2
27	15	2
28	14	2
29	14	2
30	14	2

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	69	31
4	69	31
5	68	32
6	68	32
7	68	32
8	68	32
9	67	33
10	66	34
11	65	35
12	65	35
13	64	36
14	62	38
15	62	38
16	61	39
17	61	39
18	59	41
19	59	41
20	58	42
21	58	42
22	57	43
23	56	44
24	56	44
25	55	45
26	54	46
27	54	46
28	53	47
29	54	46
30	53	47

	Rain chance (%)	Snow chance (%)
1	27	0
2	27	0
3	27	0
4	27	0
5	26	0
6	26	0
7	26	0
8	26	0
9	25	0
10	25	0
11	25	0
12	25	0
13	25	0
14	26	0
15	26	1
16	26	1
17	27	1
18	27	1
19	27	2
20	28	2
21	28	2
22	28	2
23	29	3
24	29	3
25	30	3
26	30	4
27	30	4
28	31	4
29	31	5
30	31	5

	Dry (%)	Comfortable (%)
1	97	3
2	98	2
3	98	2
4	99	1
5	99	1
6	99	1
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0

	Avg high (°C)	Avg low (°C)
1	21	7
2	21	7
3	21	7
4	20	7
5	20	7
6	20	6
7	20	6
8	20	6
9	19	6
10	19	5
11	19	5
12	18	5
13	18	5
14	18	5
15	18	4
16	17	4
17	17	4
18	17	4
19	17	4
20	16	3
21	16	3
22	16	3
23	16	3
24	15	3
25	15	2
26	15	2
27	15	2
28	14	2
29	14	2
30	14	2

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	69	31
4	69	31
5	68	32
6	68	32
7	68	32
8	68	32
9	67	33
10	66	34
11	65	35
12	65	35
13	64	36
14	62	38
15	62	38
16	61	39
17	61	39
18	59	41
19	59	41
20	58	42
21	58	42
22	57	43
23	56	44
24	56	44
25	55	45
26	54	46
27	54	46
28	53	47
29	54	46
30	53	47

	Rain chance (%)	Snow chance (%)
1	27	0
2	27	0
3	27	0
4	27	0
5	26	0
6	26	0
7	26	0
8	26	0
9	25	0
10	25	0
11	25	0
12	25	0
13	25	0
14	26	0
15	26	1
16	26	1
17	27	1
18	27	1
19	27	2
20	28	2
21	28	2
22	28	2
23	29	3
24	29	3
25	30	3
26	30	4
27	30	4
28	31	4
29	31	5
30	31	5

	Dry (%)	Comfortable (%)
1	97	3
2	98	2
3	98	2
4	99	1
5	99	1
6	99	1
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0

	Avg high (°C)	Avg low (°C)
1	21	7
2	21	7
3	21	7
4	20	7
5	20	7
6	20	6
7	20	6
8	20	6
9	19	6
10	19	5
11	19	5
12	18	5
13	18	5
14	18	5
15	18	4
16	17	4
17	17	4
18	17	4
19	17	4
20	16	3
21	16	3
22	16	3
23	16	3
24	15	3
25	15	2
26	15	2
27	15	2
28	14	2
29	14	2
30	14	2

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	69	31
4	69	31
5	68	32
6	68	32
7	68	32
8	68	32
9	67	33
10	66	34
11	65	35
12	65	35
13	64	36
14	62	38
15	62	38
16	61	39
17	61	39
18	59	41
19	59	41
20	58	42
21	58	42
22	57	43
23	56	44
24	56	44
25	55	45
26	54	46
27	54	46
28	53	47
29	54	46
30	53	47

	Rain chance (%)	Snow chance (%)
1	27	0
2	27	0
3	27	0
4	27	0
5	26	0
6	26	0
7	26	0
8	26	0
9	25	0
10	25	0
11	25	0
12	25	0
13	25	0
14	26	0
15	26	1
16	26	1
17	27	1
18	27	1
19	27	2
20	28	2
21	28	2
22	28	2
23	29	3
24	29	3
25	30	3
26	30	4
27	30	4
28	31	4
29	31	5
30	31	5

	Dry (%)	Comfortable (%)
1	97	3
2	98	2
3	98	2
4	99	1
5	99	1
6	99	1
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0