AI-generatedUlaanbaatar at a glance
- Best time
- May – Sep
- Warmest month
- Jul · 24°
- Sunshine a year
- 2,800 h
- Rain a year
- 306 mm
- Climate
- Continental
- Time zone
- UTC+8
- Elevation
- 1,284 m
Climate in Ulaanbaatar
Ulaanbaatar has warm to hot summers and cold winters with occasional snow. July is the warmest month with average highs of 24 °C, while January is the coolest at −13 °C. With around 2,800 hours of sunshine a year, Ulaanbaatar is sunny; May is the sunniest month with 9.6 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Fair
Best time to visit: May – September
Keep in mindSnow
A typical day in October
- Morning, 08:00: about -2°
- Midday, 13:00: about 6°
- Afternoon, 16:00: about 6°
- Evening, 20:00: about 1°
- Night, 23:00: about -1°
07:1018:06
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 06:51–07:52 · evening 17:24–18:26
- Blue hour
- Morning 06:39–06:51 · evening 18:26–18:38
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Ulaanbaatar in October?
In October, Ulaanbaatar is cold: daytime highs average 7 °C, and nights often drop below freezing (−4 °C). The sun shines for around 7 hours a day. Rain is rare: about 4 days bring 16 mm in total. Snow falls on about 2 days. All in all, October is a so-so month for a holiday in Ulaanbaatar.
More details for October
- Daylight
- 10 h 57 min07:10 – 18:06
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 40 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 2 days1 cm or more of fresh snowAll months
- Time zone
- UTC+8Asia/Ulaanbaatar
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %72 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Warm jacket
- Hat, scarf & gloves
Sunshine hours in Ulaanbaatar
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 7.3 of 10.9 hours of daylight in Ulaanbaatar, 67 % of the day.
Sunshine hours: measured at the weather station 3 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Ulaanbaatar
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 3 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 9).
Minutes until sunburn in October
- Very fair skin
- about 50 min
- Fair skin
- about 60 min
- Light brown skin
- about 85 min
- Olive skin
- about 110 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Ulaanbaatar: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Ulaanbaatar has about 4 rainy days with 16 mm of rain in total.
Wind and clouds in Ulaanbaatar
How breezy and how cloudy Ulaanbaatar is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Ulaanbaatar typically peaks at 16 km/h during the day: Beaufort 3, light breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 40 % of the sky over Ulaanbaatar: mostly sunny, with about 7.3 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Ulaanbaatar
How often the day gets hot in Ulaanbaatar (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Ulaanbaatar has about 0 hot days, with an average daytime high of 7 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Snow in Ulaanbaatar
Snow is possible in Ulaanbaatar, but no month makes it likely: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, Ulaanbaatar has about 2 days with at least 1 cm of fresh snow, 9 cm in total. The chance of seeing snow during a week's stay is 28 out of 100: possible.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Ulaanbaatar
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
FrostOctober: nights around −4°. Heating and warm bedding are a must.
The coolest nights are in January (−25°), the warmest in July (12°). Nights fall below 8 °C on average from September to May, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 38 | −13° | −25° | 5.3 h | 1 | 2 |
| FebruaryFeb | 44 | −8° | −22° | 7.2 h | 1 | 3 |
| MarchMar | 48 | 1° | −12° | 8.3 h | 2 | 8 |
| AprilApr | 56 | 9° | −4° | 8.8 h | 4 | 15 |
| MayMay | 85 | 16° | 2° | 9.6 h | 7 | 36 |
| JuneJun | 89 | 22° | 9° | 9.4 h | 9 | 52 |
| JulyJul | 85 | 24° | 12° | 9.0 h | 11 | 60 |
| AugustAug | 84 | 22° | 10° | 8.6 h | 11 | 67 |
| SeptemberSep | 83 | 16° | 3° | 8.3 h | 7 | 36 |
| OctoberOct | 44 | 7° | −4° | 7.3 h | 4 | 16 |
| NovemberNov | 39 | −4° | −14° | 5.8 h | 3 | 8 |
| DecemberDec | 35 | −12° | −22° | 4.4 h | 1 | 3 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
47.91° N, 106.88° E · 1,284 m · Asia/Ulaanbaatar
Best time to visit Ulaanbaatar
The best time to visit Ulaanbaatar is from May to September. For sightseeing, day trips and hiking, conditions are most comfortable from June to September. The wettest month is August with 67 mm of precipitation.
Ulaanbaatar through the seasons
How the weather changes over the seasons, with averages for each.
Ulaanbaatar in spring
Mar – May
Good
- 1–16 °C by day
- 9 h of sun a day
- 13 rainy days in all
Ulaanbaatar in summer
Jun – Aug
Excellent
- 22–24 °C by day
- 9 h of sun a day
- 31 rainy days in all
Ulaanbaatar in autumn
Sep – Nov
Fair
- -4–16 °C by day
- 7 h of sun a day
- 13 rainy days in all
Ulaanbaatar in winter
Dec – Feb
Poor
- -13–-8 °C by day
- 6 h of sun a day
- 3 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Ulaanbaatar for you.
Your best months: June – August
Based on the climate averages; tap a month to see its details.
Compare two months in Ulaanbaatar
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
June has the better holiday weather in Ulaanbaatar: score 89 against 44. In June, days are 15 °C warmer than in October. June has 5 more rainy days. The sun shines 2 hours longer a day in June.
| Month | October | June |
|---|---|---|
| Weather score | 44 | 89better |
| Day high | 7° | 22° |
| Night low | −4° | 9° |
| Sunshine | 7.3 h | 9.4 hbetter |
| Rainy days | 4better | 9 |
| Rainfall | 16 mmbetter | 52 mm |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Jun – Sep
15–28 °C and not too much rain
Snow
Apr – May, Oct – Nov
Snow on 2 or more days
Ulaanbaatar month by month
The typical weather for every month at a glance.
38January-13° · 5 h
In January, Ulaanbaatar is freezing cold: daytime highs average −13 °C, and nights often drop below freezing (−25 °C). Expect around 5 hours of sunshine a day. It hardly ever rains. All in all, January is not an ideal month for a holiday in Ulaanbaatar.
Ulaanbaatar in January44February-8° · 7 h
In February, Ulaanbaatar is freezing cold: daytime highs average −8 °C, and nights often drop below freezing (−22 °C). The sun shines for around 7 hours a day. It hardly ever rains. All in all, February is a so-so month for a holiday in Ulaanbaatar.
Ulaanbaatar in February48March1° · 8 h
In March, Ulaanbaatar is freezing cold: daytime highs average 1 °C, and nights often drop below freezing (−12 °C). The sun shines for around 8 hours a day. Precipitation, often as snow, falls on about 2 days, totalling 8 mm. Snow falls on about 2 days. All in all, March is a so-so month for a holiday in Ulaanbaatar.
Ulaanbaatar in March56April9° · 9 h
In April, Ulaanbaatar is cold: daytime highs average 9 °C, and nights often drop below freezing (−4 °C). The sun shines for around 9 hours a day. Rain is rare: about 4 days bring 15 mm in total. Snow falls on about 2 days. All in all, April is a so-so month for a holiday in Ulaanbaatar.
Ulaanbaatar in April85May16° · 10 h
In May, Ulaanbaatar is mild: daytime highs average 16 °C, and nights cool down to about 2 °C. With around 10 hours of sunshine a day, there is plenty of sun. Rain falls on about 7 days, adding up to 36 mm. Snow falls on about 2 days. All in all, May is an excellent month for a holiday in Ulaanbaatar.
Ulaanbaatar in May89June22° · 9 h
In June, Ulaanbaatar is warm: daytime highs average 22 °C, and nights cool down to about 9 °C. With around 9 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 9 rainy days and 52 mm in total. All in all, June is an excellent month for a holiday in Ulaanbaatar.
Ulaanbaatar in June85July24° · 9 h
In July, Ulaanbaatar is warm: daytime highs average 24 °C, and nights cool down to about 12 °C. With around 9 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 11 rainy days and 60 mm in total. All in all, July is an excellent month for a holiday in Ulaanbaatar.
Ulaanbaatar in July84August22° · 9 h
In August, Ulaanbaatar is warm: daytime highs average 22 °C, and nights cool down to about 10 °C. The sun shines for around 9 hours a day. Rain is frequent, with about 11 rainy days and 67 mm in total. All in all, August is an excellent month for a holiday in Ulaanbaatar.
Ulaanbaatar in August83September16° · 8 h
In September, Ulaanbaatar is mild: daytime highs average 16 °C, and nights cool down to about 3 °C. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 36 mm. All in all, September is an excellent month for a holiday in Ulaanbaatar.
Ulaanbaatar in September44October7° · 7 h
In October, Ulaanbaatar is cold: daytime highs average 7 °C, and nights often drop below freezing (−4 °C). The sun shines for around 7 hours a day. Rain is rare: about 4 days bring 16 mm in total. Snow falls on about 2 days. All in all, October is a so-so month for a holiday in Ulaanbaatar.
Ulaanbaatar in October39November-4° · 6 h
In November, Ulaanbaatar is freezing cold: daytime highs average −4 °C, and nights often drop below freezing (−14 °C). Expect around 6 hours of sunshine a day. Precipitation, often as snow, falls on about 3 days, totalling 8 mm. Snow falls on about 2 days. All in all, November is not an ideal month for a holiday in Ulaanbaatar.
Ulaanbaatar in November35December-11° · 4 h
In December, Ulaanbaatar is freezing cold: daytime highs average −12 °C, and nights often drop below freezing (−22 °C). Expect around 4 hours of sunshine a day. It hardly ever rains. All in all, December is not an ideal month for a holiday in Ulaanbaatar.
Ulaanbaatar in DecemberUlaanbaatar compared
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Ulaanbaatar vs. Ulan-Ude
In October Ulaanbaatar has the better holiday weather (score 44 vs. 37). During the day Ulan-Ude is 1 °C cooler than Ulaanbaatar. Ulan-Ude gets 2 fewer hours of sunshine a day.
| in October | Ulaanbaatar | Ulan-Ude |
|---|---|---|
| Holiday score | 44 | 37 |
| Daytime high | 7° | 6° |
| Sunshine | 7 h | 5 h |
| Rainy days | 4 | 4 |
| Best time | May – Sep | May – Aug |
Through the year
Planning a trip to Ulaanbaatar
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Ulaanbaatar in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Ulaanbaatar has its best school-holiday weather during May half-term (score 86) and its weakest during the Christmas holidays (score 37).
- 54
Easter holidays
Mar – Apr
Fair
- 7 °C by day
- 8.7 h of sun a day
- 4 rainy days a month
Keep in mind: Snow
- 86
May half-term
May – Jun
ExcellentBest holidays
- 17 °C by day
- 9.6 h of sun a day
- 7 rainy days a month
Keep in mind: Snow
- 84
Summer holidays
Jul – Aug
Excellent
- 23 °C by day
- 8.7 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 44
October half-term
Oct
Fair
- 7 °C by day
- 7.3 h of sun a day
- 4 rainy days a month
Keep in mind: Snow
- 37
Christmas holidays
Dec – Jan
Poor
- −12 °C by day
- 4.9 h of sun a day
- 1 rainy day a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 8 h 55 min
- Distance
- 6,990 km
- Time zone
- UTC+8
- Jet lag
- About 7 days (7 h east)
Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning light at your destination.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Ulaanbaatar
When is the best time to visit Ulaanbaatar?
The best time to visit Ulaanbaatar is from May to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Ulaanbaatar?
July is the warmest month, with average highs of 24 °C and nights around 12 °C. January is the coolest month at −13 °C.
When does it rain most in Ulaanbaatar?
The wettest month is August with 67 mm of precipitation. The driest month is January with 2 mm.
How many hours of sunshine does Ulaanbaatar get?
Ulaanbaatar gets around 2,800 hours of sunshine a year. The sunniest month is May with 9.6 hours a day; in December there are 4.4 hours a day.
What time zone is Ulaanbaatar in?
Ulaanbaatar uses the time zone Asia/Ulaanbaatar, at UTC+8 all year.
How long is the flight from London to Ulaanbaatar?
A nonstop flight from London to Ulaanbaatar takes about 8 h 55 min, for a straight-line distance of about 6,990 km.
Which school holidays are best for Ulaanbaatar?
Ulaanbaatar has its best school-holiday weather during May half-term (score 86) and its weakest during the Christmas holidays (score 37). Holiday ratings (0–100): Easter holidays 54, May half-term 86, Summer holidays 84, October half-term 44, Christmas holidays 37.
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Destinations whose weather through the year is closest to Ulaanbaatar's – good alternatives.