Climate and average weather in Nalayh

In Nalayh, the summers are mild, showery, and partly cloudy and the winters are frigid, snowy, and mostly clear.

Best: late May to mid September

Over the course of the year, the temperature in Nalayh typically varies from -27°C to 22°C, and is rarely below -34°C or above 28°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 Nalayh for warm-weather activities is from late May to mid September.

Hottest
Jul
22°
Coldest
Jan
-27°
Wettest
Jul
71 mm
Driest
Jan
1 mm
Rain / yr
307 mm
58 wet days
Daylight
8.2–15.8 h
shortest–longest
Elevation
1,434 m
47.8°N
Clearest
Jan
39% cloud

Nalayh 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 late May to mid September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.6 months, from May 7 to September 23, with daily high temperatures above 12°C. The hottest month of the year in Nalayh is July, with an average high of 22°C and low of 11°C.

The cool season lasts 3.0 months, from November 21 to February 20, with daily high temperatures below -9°C. The coldest month of the year in Nalayh is January, with an average low of -27°C and high of -17°C.

Days typically run about 12°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-17-27
Feb-11-24
Mar-2-15
Apr7-5
May151
Jun208
Jul2211
Aug209
Sep142
Oct5-6
Nov-7-17
Dec-15-25

How hot and cold Nalayh 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 -36°C (around January 21), with roughly 257 freezing days a year (feels-like at or below 0°C) 187 of them bitterly cold — worst in January.

-40°-30°-20°-10°10°20°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan-17-17-35-27
Feb-11-11-31-24
Mar-2-2-21-15
Apr77-10-5
May1415-31
Jun202068
Jul22221111
Aug202089
Sep1414-12
Oct55-11-6
Nov-7-7-24-17
Dec-15-15-32-25

Average hourly temperature in Nalayh

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 22°C, and coldest before dawn in January, near -27°C.

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

Nalayh 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-17° / -27°10.50.88.70.0
Feb-11° / -24°311.39.90.0
Mar-2° / -15°61.92.411.60.0
Apr / -5°143.62.813.41.3
May15° / 3162.614.94.8
Jun20° / 549.80.115.76.3
Jul22° / 11°7111.8015.46.3
Aug20° / 6910.8014.16.2
Sep14° / 376.61.312.44.6
Oct / -7°133.32.610.60.7
Nov-7° / -17°51.82.19.10.0
Dec-15° / -25°20.71.28.30.0

Chance of rain

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

Nalayh gets about 307 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 5.1 months, from around Apr 30 to Oct 1, peaking in July at about 39% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 19.

July is the wettest month by volume, with 71 mm over about 12 wet days; January is the driest, with 1 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJul 31 · 39%Jan 19 · 1%
Rain on a day (%)Rain days
Jan21
Feb41
Mar62
Apr124
May206
Jun3210
Jul3912
Aug3411
Sep217
Oct123
Nov62
Dec21

Monthly rainfall

Over a full year, Nalayh collects about 307 mm of rain across 58 wet days — roughly 26 mm in an average month.

It doesn’t fall evenly. July is the wettest month with 71 mm, while January is the driest at just 1 mm. The three wettest months alone bring about 63% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec1361431547169371352
Rainfall (mm)Rain daysSnow days
Jan111
Feb311
Mar622
Apr1443
May3163
Jun54100
Jul71120
Aug69110
Sep3771
Oct1333
Nov522
Dec211

Snow in Nalayh

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.

Nalayh averages about 17 snowy days a year. Snow season runs roughly Sep 8 to Jun 3 — about 8.8 months.

May is snowiest, with roughly 2 days of snow and an estimated 12 cm of snowfall. Over the year that adds up to an estimated 68 cm of snow.

0246JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonMay 7
Snow daysSnowfall (cm)
Jan12
Feb14
Mar28
Apr312
May312
Jun00
Jul00
Aug00
Sep17
Oct312
Nov29
Dec13

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

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

The clearer part of the year begins around September 6 and lasts for 6.6 months, ending around March 25. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 71% of the time on average.

The cloudier part of the year begins around March 26 and lasts for 5.4 months, ending around September 5. The cloudiest month is June, when it is overcast or mostly cloudy 52% 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%JanFebMarAprMayJunJulAugSepOctNovDecJan 29 · 73%Jun 26 · 43%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan7129
Feb6832
Mar6337
Apr5644
May5545
Jun4852
Jul4852
Aug5149
Sep6337
Oct7129
Nov7030
Dec6832

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 15 h 48 min of light; the shortest, around December 14, only 8 h 12 min — a swing of roughly 7 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan8.78:425:18
Feb9.98:086:03
Mar11.67:136:48
Apr13.46:097:33
May14.95:198:15
Jun15.74:588:44
Jul15.45:138:40
Aug14.15:527:58
Sep12.46:356:55
Oct10.67:185:53
Nov9.18:065:07
Dec8.38:404:54

Sunny days

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

Nalayh averages about 13 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 7 and 17 days.

The sunnier stretch runs 6.3 months, from around Sep 10 to Mar 19. The sunniest month is January, with roughly 17 sunny days (bright).

The greyest month is June, down near 8 sunny days — about 50% fewer than the January peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightJan 317 daysJun 257 days
Sunny daysSky
Jan17Bright
Feb14Bright
Mar13Mixed
Apr10Mixed
May10Mixed
Jun8Mixed
Jul9Mixed
Aug10Mixed
Sep13Mixed
Oct17Bright
Nov16Bright
Dec17Bright

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 Nalayh, the air stays dry or comfortable essentially all year. Even in June, the muggiest month, it feels humid or worse only about 0% of the time — humidity is not something you need to plan around here.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDeccomfortabledry
Dry (%)Comfortable (%)
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun991
Jul919
Aug964
Sep1000
Oct1000
Nov1000
Dec1000

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.

Across the year, average wind speed in Nalayh is typically calm, near 11 km/h, and varies moderately with the seasons.

The windier part of the year lasts 3.9 months, from around Mar 2 to Jun 27. The windiest month is April, averaging about 13 km/h (light breeze).

The calmer part of the year runs from around Sep 29 to Mar 1, with January the calmest month at about 9 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeApr 29 · 14 km/hJan 7 · 8 km/h
Wind speed (km/h)Feels
Jan9calm
Feb10calm
Mar11calm
Apr13light breeze
May13light breeze
Jun11calm
Jul10calm
Aug10calm
Sep11calm
Oct10calm
Nov9calm
Dec9calm

Best time to visit Nalayh

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early September, Nalayh is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

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 Nalayh for general outdoor tourist activities is from late May to mid September, with a peak score in the third week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 20 · 6.4

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
Mar0.0poor
Apr1.3poor
May4.7fair
Jun6.3good
Jul6.3good
Aug6.2good
Sep4.6fair
Oct0.7poor
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 Nalayh for hot-weather activities is from late June to mid August, with a peak score in the third week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 19 · 4.5

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 Nalayh, 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 22°C), the essentials are rain gear and sun protection. In the cold season around January (highs near -17°C), pack a warm layer and a heavy coat.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Nalayh sees daytime highs around 22°C and nights near 11°C. Worth packing: rain gear and sun protection. About 12 days see rain.

UV index (midday) in Nalayh 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 Nalayh peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 17UV 9Dec 18UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr6High
May7High
Jun7Very high
Jul9Very high
Aug8Very high
Sep5High
Oct3Moderate
Nov1Low
Dec1Low

Average hourly UV index in Nalayh

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 8.5 hours a day reach index 3 (protection recommended), and 5.5 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
Jun84
Jul8.55.5
Aug7.54
Sep5.50
Oct00
Nov00
Dec00

Air quality in Nalayh 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 Nalayh is worst in July — around 24 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (October, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1622 µg/m³Oct 117 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar9Good
Apr9Good
May10Good
Jun14Moderate
Jul24Moderate
Aug13Moderate
Sep7Good
Oct7Good
Nov9Good
Dec7Good
Almanac & agriculture

Growing season

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

The growing season in Nalayh typically lasts about 136 days, from around May 10 to September 22 — the span where a frost-free day is more likely than not. It is reliably frost-free from June 4 to September 5.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonApr 1010%May 1050%Jun 490%Sep 590%Sep 2250%Oct 1010%
Frost-free chance (%)Frost nights
Jan031
Feb028
Mar131
Apr1530
May6131
Jun974
Jul1000
Aug990
Sep6725
Oct831
Nov030
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. Nalayh banks about 464 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

0200400600JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr0
May3
Jun114
Jul202
Aug138
Sep8
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.

Nalayh receives about 4.2 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.5 and 6.8 kWh/m².

The brighter stretch of the year lasts 6.4 months, from around Mar 10 to Sep 21. The brightest month is May, averaging about 6.6 kWh/m² (intense).

The dimmest month is December, down near 1.6 kWh/m² — roughly 76% less than the May peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseMay 286.8 kWhDec 191.5 kWh
Solar energy (kWh/m²)Level
Jan1.9Dim
Feb3.1Moderate
Mar4.6Bright
Apr5.7Bright
May6.6Intense
Jun6.5Intense
Jul5.9Bright
Aug5.3Bright
Sep4.5Bright
Oct3.2Moderate
Nov2.1Moderate
Dec1.5Dim

Where is Nalayh?

Nalayh sits at 47.8°N, 107.3°E, 1,434 m above sea level, in Mongolia. The nearest listed city is Zuunmod, 26 km away.

DarhanÖndörkhaanErdenetSühbaatar

Topography around Nalayh

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

Within 3 km, the terrain around Nalayh has only modest variations in elevation — a maximum elevation change of 148 m around an average of 1,450 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 743 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,674 m.

The land around Nalayh is covered by grassland (72%) and artificial surfaces (21%) within 3 km, grassland (89%) within 16 km, and grassland (82%) within 80 km.

3 km
148 m
16 km
743 m
80 km
1,674 m
treesgrasslandcroplandartificial surfacesbare terrainmoss and lichen
Nearby: Zuunmod 26 km · Dzuunmod 26 km · Ulaanbaatar 34 km · Dzüünharaa 135 km · Darhan 216 km · Öndörkhaan 258 km · Erdenet 275 km · Sühbaatar 285 km

Mongolia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
220 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$7,108
2025
Happiness
5.9 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
5.9
per 100k, 2023
Road deaths
21
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 447
Religion
Buddhist 52%no religion 41%Muslim 3%Shaman 3%

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 Nalayh (47.7667°, 107.2833°, elevation 1,434 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).