Climate and average weather in Altay

In Altay, the summers are warm, showery, and partly cloudy and the winters are frigid, snowy, and partly cloudy.

Best: mid May to mid September

Over the course of the year, the temperature in Altay typically varies from -21°C to 25°C, and is rarely below -30°C or above 30°C. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Altay for warm-weather activities is from mid May to mid September.

Hottest
Jul
25°
Coldest
Jan
-21°
Wettest
Jul
103 mm
Driest
Feb
41 mm
Rain / yr
846 mm
119 wet days
Daylight
7.9–16.1 h
shortest–longest
Elevation
460 m
49.7°N
Clearest
Aug
44% cloud

Altay is town in Kazakhstan.

Founded
1791

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

Altay weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around mid May to mid September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Altay, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 4.7 months, from May 2 to September 22, with daily high temperatures above 16°C. The hottest month of the year in Altay is July, with an average high of 25°C and low of 13°C.

The cool season lasts 3.2 months, from November 24 to February 27, with daily high temperatures below -5°C. The coldest month of the year in Altay is January, with an average low of -21°C and high of -12°C.

Days typically run about 11°C warmer than nights, with the widest day–night swing (around 13°C) in May.

-30°-20°-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan-12-21
Feb-7-19
Mar0-11
Apr11-1
May185
Jun2311
Jul2513
Aug2310
Sep184
Oct9-2
Nov-2-11
Dec-10-18

How hot and cold Altay really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the coldest nights, wind chill pulls the feels-like down to about -21°C (around January 23), with roughly 202 freezing days a year (feels-like at or below 0°C) 127 of them bitterly cold — worst in January.

-20°-10°10°20°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan-12-12-21-21
Feb-7-7-19-19
Mar00-11-11
Apr1111-3-1
May181845
Jun23231011
Jul25251313
Aug23231010
Sep171844
Oct99-2-2
Nov-2-2-11-11
Dec-10-10-18-18

Average hourly temperature in Altay

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on July afternoons, near 25°C, and coldest before dawn in January, near -21°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Altay weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-12° / -21°499.310.38.40.0
Feb-8° / -19°418.299.80.0
Mar / -11°478.48.111.50.0
Apr11° / -2°669.73.613.52.8
May18° / 779.90.715.16.0
Jun23° / 11°8210.50166.8
Jul25° / 13°10312.1015.76.7
Aug23° / 10°769.3014.27.3
Sep18° / 6880.412.45.9
Oct / -2°8511.25.610.51.8
Nov-2° / -11°8311.111.18.80.0
Dec-10° / -18°7011.813.380.0

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Altay gets about 846 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 2.6 months, from around May 19 to Aug 4, peaking in July at about 40% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 30.

July is the wettest month by volume, with 103 mm over about 12 wet days; February is the driest, with 41 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJul 3 · 40%Jan 30 · 25%
Rain on a day (%)Rain days
Jan319
Feb298
Mar288
Apr3110
May3310
Jun3511
Jul3812
Aug309
Sep288
Oct3611
Nov3711
Dec3712

Monthly rainfall

Over a full year, Altay collects about 846 mm of rain across 119 wet days — roughly 70 mm in an average month.

It doesn’t fall evenly. July is the wettest month with 103 mm, while February is the driest at just 41 mm. The three wettest months alone bring about 32% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec4941476677821037668858370
Rainfall (mm)Rain daysSnow days
Jan49910
Feb4189
Mar4788
Apr66104
May77101
Jun82110
Jul103120
Aug7690
Sep6880
Oct85116
Nov831111
Dec701213

Snow in Altay

Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.

Altay averages about 62 snowy days a year. Snow season runs roughly Sep 19 to May 23 — about 8.1 months.

December is snowiest, with roughly 13 days of snow and an estimated 67 cm of snowfall. Over the year that adds up to an estimated 341 cm of snow.

051015JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonDec 24
Snow daysSnowfall (cm)
Jan1058
Feb953
Mar844
Apr413
May13
Jun00
Jul00
Aug00
Sep01
Oct628
Nov1175
Dec1367

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Altay, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around April 5 and lasts for 6.0 months, ending around October 4. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 65% of the time on average.

The cloudier part of the year begins around October 5 and lasts for 6.0 months, ending around April 4. The cloudiest month is December, when it is overcast or mostly cloudy 63% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecSep 2 · 68%Dec 3 · 36%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan4357
Feb4654
Mar5050
Apr5248
May5842
Jun5842
Jul5644
Aug6535
Sep6139
Oct4555
Nov3862
Dec3763

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 14, brings about 16 h 06 min of light; the shortest, around December 14, only 7 h 54 min — a swing of roughly 8 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan8.48:224:43
Feb9.87:445:31
Mar11.56:466:19
Apr13.55:397:08
May15.14:457:54
Jun16.04:218:25
Jul15.74:378:20
Aug14.25:197:35
Sep12.46:066:28
Oct10.56:545:22
Nov8.87:454:32
Dec8.08:214:17

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Altay averages about 11 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 8 and 15 days.

The sunnier stretch runs 2.7 months, from around Jul 20 to Oct 9. The sunniest month is August, with roughly 15 sunny days (mixed).

The greyest month is November, down near 9 sunny days — about 42% fewer than the August peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightAug 1615 daysNov 88 days
Sunny daysSky
Jan11Mixed
Feb10Mixed
Mar12Mixed
Apr11Mixed
May12Mixed
Jun11Mixed
Jul11Mixed
Aug15Mixed
Sep13Mixed
Oct11Mixed
Nov8Mixed
Dec9Mixed

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Altay, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 2.1 months, from around June 13 to August 14. The muggiest month is July, when the air feels humid, muggy or worse about 17% of the time.

The most comfortable stretch runs from around August 15 to June 12, and May is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecMay 13 · 100%Jul 15 · 79%humidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)
Jan10000
Feb10000
Mar10000
Apr10000
May9820
Jun68274
Jul414216
Aug77213
Sep9910
Oct10000
Nov10000
Dec10000

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Altay is steady company: average speeds sit near 4 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmMay 7 · 5 km/hJan 8 · 3 km/h
Wind speed (km/h)Feels
Jan3calm
Feb3calm
Mar4calm
Apr5calm
May5calm
Jun5calm
Jul4calm
Aug5calm
Sep5calm
Oct4calm
Nov4calm
Dec3calm

Best time to visit Altay

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Altay throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late May, Altay is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Altay for general outdoor tourist activities is from mid May to mid September, with a peak score in the second week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 14 · 7.4

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan0.0poor
Feb0.0poor
Mar0.1poor
Apr2.8poor
May5.9good
Jun6.8good
Jul6.8good
Aug7.2good
Sep5.9good
Oct1.9poor
Nov0.0poor
Dec0.0poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Altay for hot-weather activities is from mid June to late August, with a peak score in the second week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 8 · 6.3

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Altay, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around July (highs near 25°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near -12°C), pack a warm layer, a heavy coat and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Altay sees daytime highs around 25°C and nights near 13°C. Pack sun protection. Worth having: light clothes and rain gear. About 12 days see rain.

UV index (midday) in Altay by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighVery highHighModerateLowJul 19UV 7Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5High
May7Very high
Jun6High
Jul7Very high
Aug7High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Average hourly UV index in Altay

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in July the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 4 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan00
Feb00
Mar00
Apr60
May7.53.5
Jun7.52.5
Jul84
Aug73
Sep40
Oct00
Nov00
Dec00

Air quality in Altay by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly 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).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1517 µg/m³Dec 175 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb10Good
Mar13Moderate
Apr18Moderate
May11Good
Jun8Good
Jul10Good
Aug9Good
Sep9Good
Oct10Good
Nov8Good
Dec4Good
Almanac & agriculture

Growing season

Chance of a frost-free dayTypical season (≥50%)

The growing season in Altay typically lasts about 171 days, from around April 21 to October 8 — the span where a frost-free day is more likely than not. It is reliably frost-free from May 16 to September 15.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonMar 2910%Apr 2150%May 1690%Sep 1590%Oct 850%Nov 710%
Frost-free chance (%)Frost nights
Jan031
Feb028
Mar531
Apr3930
May8916
Jun1000
Jul1000
Aug1000
Sep8715
Oct3631
Nov730
Dec031

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Altay banks about 775 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

02004006008001,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr0
May53
Jun201
Jul269
Aug210
Sep41
Oct0
Nov0
Dec0

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Altay receives about 3.8 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 1.0 and 6.5 kWh/m².

The brighter stretch of the year lasts 6.2 months, from around Mar 14 to Sep 18. The brightest month is June, averaging about 6.5 kWh/m² (intense).

The dimmest month is December, down near 1.0 kWh/m² — roughly 84% less than the June peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 126.5 kWhDec 201.0 kWh
Solar energy (kWh/m²)Level
Jan1.4Dim
Feb2.4Moderate
Mar3.9Moderate
Apr5.2Bright
May6.3Intense
Jun6.5Intense
Jul6.0Intense
Aug5.4Bright
Sep4.0Bright
Oct2.3Moderate
Nov1.4Dim
Dec1.0Dim

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.

ShemonaikhaKalbatauGornyakZaysanGorno-AltayskMayma

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
16 km
908 m
80 km
2,387 m
treesgrasslandcroplandartificial surfacesbare terrainwatermoss and lichen
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
Muslim 69%Christian 17%non-believers 2%Buddhism 0%

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).