Mongolia weather in August 2025

Expect 21°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Mongolia in August. Check more long-term weather averages for Mongolia in August before you book your next holiday to Mongolia in 2025/2026.

  • 21°C maximum daytime temperature in August in Mongolia (Ulaanbaatar)21
    21°C max day temperature
  • 8 hours of sunshine per day
  • 16 days with some rainfall in August in Mongolia (Ulaanbaatar)16
    16 days with some rainfall
  • 8°C minimum night-time temperature in August in Mongolia (Ulaanbaatar)8
    8°C min night temperature
  • 14 hours of daylight per day in August in Mongolia (Ulaanbaatar)14
    14 hours of daylight per day
  • No heat & humidity in August in Mongolia (Ulaanbaatar)0
    No heat & humidity
  • 86 mm monthly rainfall in August in Mongolia (Ulaanbaatar)86
    86 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in Mongolia (Ulaanbaatar)7
    7 (High) UV index

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The August weather guide for Mongolia (Ulaanbaatar) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Mongolia destinations

Below are average maximum temperatures at popular countries, regions and places in Mongolia in August. Select a holiday destination to see more weather parameters.

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Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Mongolia in August?

Daytime temperatures usually reach 21°C in Ulaanbaatar, Mongolia in August, falling to 8°C at night.

How sunny is it in Mongolia in August?

There are normally 8 hours of bright sunshine each day in Ulaanbaatar, Mongolia in August - that's 58% of daylight hours.

Does it rain in Mongolia in August?

There are usually 16 days with some rain in Ulaanbaatar, Mongolia in August and the average monthly rainfall is 86mm.

Mongolia August sunrise & sunset times

Browse the sunrise and sunset times for Mongolia in August 2025. Select a month to view Mongolia sunrise and sunset times for the next 12 months. The Mongolia sunrise and sunset times shown below are for Ulaanbaatar.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:29 20:28
Saturday, 16th August 2025 05:49 20:04
Sunday, 31st August 2025 06:09 19:36

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