Last updated: August 28, 2025
August in Ulan Bator, Mongolia, offers a dynamic weather experience marked by a maximum temperature of 28°C (82°F), ensuring warm days perfect for exploration. The average temperature rests comfortably at 14°C (58°F), while the nights can get quite chilly, dipping to a minimum of 0°C (33°F). This month also sees precipitation totaling 83 mm (3.3 in) over approximately 13 days, adding a refreshing, albeit damp, touch to the air, with humidity levels around 58%. Whether you’re trekking the steppes or enjoying the vibrant city, August provides an interesting blend of warm and cool weather, ideal for various outdoor activities.
In August, Ulan Bator experiences a welcome reprieve from the harsh winter chill, with temperatures ranging from a refreshing 0°C (33°F) at night to a comfortable 28°C (82°F) during the day. This month represents a peak in warmth, as the city transitions from the lively summer months of July and June, where highs also reach the low thirties. The average temperature sits around 14°C (58°F), offering a pleasant atmosphere for both locals and visitors to enjoy outdoor activities. As August wraps up, the onset of autumn temperatures begins, hinting at the return of colder weather in September. This blend of milder heat and gentle breezes makes August a perfect time to soak in Mongolia's natural beauty before winter sets in.
August marks the zenith of precipitation in Ulan Bator, with 83 mm (3.3 in) of rain typically gracing the city over 13 days. This surge in rainfall peaks after a gradual increase from the winter months, where precipitation is notably sparse, accumulating just 2 mm in January. As spring blossoms into summer, the city's rainfall escalates, with August experiencing the highest monthly total, reflecting a significant shift from the drier trends of the earlier months. The torrential rains not only cool down the hot summer air but also prepare the landscape for the upcoming autumn, showcasing the dynamic climate of Mongolia's capital.
In Ulan Bator, Mongolia, August brings a hint of relief from the high humidity of the earlier months, with levels stabilizing at 58%. This is a subtle increase compared to July's 57%, indicating a gradual shift as summer wanes. The trend throughout the year reveals a steady decline from the biting cold of January, which starts at a staggering 92%, to the more moderate figures seen in late spring and early summer. As the city transitions into autumn, humidity begins to rise again in September, echoing the cyclical nature of the region's climate. The overall pattern showcases a significant drop in humidity from early winter through mid-summer, culminating in a moderately humid August that sets the stage for the changing seasons ahead.
In August, Ulan Bator experiences a persistent UV Index of 9, signaling a very high level of solar radiation that requires caution for outdoor activities. This sustained elevation in UV exposure, which began in May and continues through July, reflects a growing trend in summer months where the burn time shrinks to just 15 minutes. The strong UV levels not only underscore the need for protective measures but also highlight the shifting climate patterns in this region. As daylight hours lengthen, the risk of sunburn intensifies, making it crucial for residents and visitors alike to stay informed and take proper precautions. For more details on UV levels throughout the year, visit Ulan Bator UV Index.
UV Risk Categories
August in Ulan Bator is a transition month, wrapping up the sun-kissed summer with 346 hours of sunshine. This is a noticeable dip from the peak brightness experienced in May, where residents enjoyed a hearty 376 hours of sunlight. However, August still maintains a healthy glow, outshining the cooler months ahead. As the sunlight gradually wanes towards autumn, the city is left basking in the warmth, making it a perfect time for outdoor activities before the shorter days of September, which bring 311 hours of light. This trend of diminishing daylight serves as a gentle reminder of the approaching chill, yet August remains a vibrant end to a sunny season, inviting both locals and travelers to revel in the lingering warmth.
In Ulan Bator, Mongolia, the likelihood of sunny weather experiences notable fluctuations throughout the year, with August presenting a 44% chance of sun. This figure aligns closely with the earlier summer months of July (41%) and June (41%), suggesting a relatively consistent probability of sunshine during peak summer. As the seasons transition into fall, the chance of sun begins to rise, hitting 51% in September, and dramatically increasing to 69% in October. This upward trend highlights a distinctive pattern, as the sun's presence becomes more favorable as summer fades—a refreshing shift for those seeking brighter days after the comparatively subdued sun in late spring and early summer months.
In Ulan Bator, August offers a notable transition in daylight, with approximately 14 hours of sunlight gracing the city. This gradual decline from the summer peak of 15 hours in June and July signals the impending arrival of autumn. Throughout the year, daylight duration follows a distinct pattern: as the winter months approach, daylight begins at a meager 8 hours in January and climbs to a summer high before tapering off again. This rhythmic fluctuation highlights Ulan Bator's unique climate, where the long, bright days of summer provide a stark contrast to the short, chilly days of winter. As August draws to a close, the diminishing daylight serves as a reminder of the changing seasons and the fleeting beauty of summer's warmth.
In August, Ulan Bator experiences an average wind speed of 2.9 m/s (6 mph), marking a subtle uptick from the calmer breezes of July. This gentle increase reflects a seasonal trend where wind speeds gradually rise from the stillness of mid-summer, peaking in the spring months before cooling down as autumn approaches. Throughout the year, Ulan Bator's winds vary, with March and April showcasing higher speeds at 3.1 m/s (7 mph) and 3.4 m/s (8 mph), respectively. As the summer months progress, a noticeable dip occurs in July, likely creating the tranquil atmosphere that characterizes peak summer. This pattern, with winds generally fluctuating between 2.4 and 3.8 m/s, illustrates the dynamic climate of Mongolia's capital, shaped by its unique geographic location and seasonal shifts.
Weather in Ulan Bator varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Ulan Bator, focusing on differences in temperature, rainfall, humidity, and UV levels.
In August, the weather in Ulan Bator is characterized by mild temperatures, ranging from a chilly 0°C (33°F) at night to a warm 28°C (82°F) during the day, with an average of 14°C (58°F). However, this month also sees considerable precipitation, with rain falling on about 13 days, accumulating to 83 mm (3.3 in) and a relative humidity of 58%. In stark contrast, January presents a harsh winter climate, with temperatures plummeting to a minimum of -42°C (-44°F) and an average of -22°C (-8°F) rising only to a maximum of -5°C (23°F). Remarkably, January experiences little to no precipitation, averaging just 2 mm (0.1 in) over the course of the month, and high humidity levels at 92%. For more on the January weather specifics, visit Ulan Bator weather in January.
August and February in Ulan Bator present stark contrasts in weather conditions. August enjoys a comparatively mild climate, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 28°C (82°F), averaging around 14°C (58°F). This month also experiences relatively moderate precipitation, totaling 83 mm (3.3 in) over 13 days, along with a humidity level of 58%. In sharp contrast, February is frigid, with temperatures plummeting to a minimum of -38°C (-36°F) and averaging -18°C (0°F), only reaching a maximum of 4°C (39°F). The precipitation is minimal at just 5 mm (0.2 in) over one day, with humidity levels higher at 84%. For a more detailed look at February's conditions, visit Ulan Bator weather in February.
When comparing the weather in August and March, the differences are striking. August boasts a comfortable average temperature of 14°C (58°F), with maximum highs reaching 28°C (82°F), while March presents a much colder average of -7°C (20°F) and a maximum of only 16°C (61°F). Precipitation levels also vary significantly, with August experiencing 83 mm (3.3 in) of rainfall over 13 days, whereas March only sees 7 mm (0.3 in) across just 2 days. Additionally, humidity levels are slightly higher in March at 64%, compared to August's 58%. For more detailed information, you can check Ulan Bator weather in March.
When comparing the weather in August and April, one can see a noticeable contrast between the two months. August typically enjoys much milder temperatures, with average highs reaching up to 28°C (82°F) and lows around 0°C (33°F), along with a higher precipitation rate of 83 mm (3.3 in) spread over 13 days. In contrast, April experiences colder temperatures, with an average high of only 25°C (77°F) and lows dipping to -16°C (4°F), and significantly lower precipitation at just 15 mm (0.6 in) across 4 days. Interestingly, the humidity levels remain similar in both months at around 58-59%. For a detailed breakdown, you can check Ulan Bator weather in April.
When comparing the weather in August and May, notable contrasts emerge. August experiences milder temperatures, with averages around 14°C (58°F) and maximums reaching up to 28°C (82°F), while May’s temperatures can dip as low as -8°C (18°F) and only mildly peak at 30°C (87°F). Furthermore, August is characterized by a higher level of humidity at 58%, compared to May’s 50%. Precipitation is also more prevalent in August, with 83 mm (3.3 in) spread over 13 days, while May sees only 26 mm (1.0 in) over just 5 days. For a detailed look at May weather in Ulan Bator, check out Ulan Bator weather in May.
In comparing the weather between August and June, we see notable differences in temperature and precipitation. August experiences a milder range with minimum temperatures of 0°C (33°F) and a maximum of 28°C (82°F), resulting in an average temperature of 14°C (58°F). In contrast, June boasts slightly warmer temperatures, with a minimum of -3°C (28°F) and a maximum of 32°C (90°F), giving it an average of 15°C (59°F). Precipitation is also higher in August at 83 mm (3.3 in) over 13 days, compared to June's 44 mm (1.7 in) over just 7 days. Despite June being warmer overall, August's higher humidity at 58% compared to June's 55% may create a more uncomfortable atmosphere. For detailed information, you can visit Ulan Bator weather in June.
In comparing the weather between July and August, it is evident that August experiences cooler temperatures, with a minimum of 0°C (33°F) and an average of 14°C (58°F), compared to July's minimum of 5°C (41°F) and average of 17°C (64°F). Additionally, August's maximum temperature reaches only 28°C (82°F), slightly lower than July's peak of 32°C (91°F). Precipitation is somewhat higher in August at 83 mm (3.3 in) over 13 days, compared to July's 72 mm (2.9 in) over 12 days, while humidity remains similar between the two months at 58% for August and 57% for July. For more details on July's weather, you can visit Ulan Bator weather in July.
August and September in Ulan Bator present a notable shift in weather conditions. In August, temperatures range from a low of 0°C (33°F) to a maximum of 28°C (82°F), with an average of 14°C (58°F). This month experiences relatively high humidity at 58% and significant rainfall, accumulating 83 mm (3.3 in) over 13 days. In contrast, September sees a drop in temperature, with minimums plummeting to -9°C (16°F) and an average of 9°C (48°F), while the max remains fairly consistent at 27°C (81°F). This month also enjoys less rainfall, totaling 51 mm (2.0 in) over just 8 days, and a slight increase in humidity to 65%. For more detailed information, check out Ulan Bator weather in September.
In August, the weather is generally warm with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 28°C (82°F) and an average of 14°C (58°F). This month also sees a fair amount of precipitation, with around 83 mm (3.3 in) falling over 13 days, coupled with a humidity level of 58%. In stark contrast, October brings significantly cooler temperatures, with a minimum of -16°C (4°F) and an average of -1°C (30°F), although it can still peak at 22°C (72°F) on warmer days. The precipitation drops to 21 mm (0.8 in) across just 4 days, and humidity rises slightly to 65%. For a more detailed overview of October conditions, you can check Ulan Bator weather in October.
August and November present stark contrasts in weather conditions. In August, temperatures range from a mild 0°C (33°F) at night to a warm 28°C (82°F) during the day, accompanied by an average temperature of 14°C (58°F). This month experiences considerable rainfall, with 83 mm (3.3 in) of precipitation spread over 13 days, while humidity levels sit at a comfortable 58%.
In contrast, November plunges into winter's grasp, where temperatures can drop as low as -35°C (-32°F) at night and peak at only 9°C (49°F) during the day, averaging -12°C (11°F). The month sees significantly less rainfall, with just 10 mm (0.4 in) occurring over a mere 2 days, and humidity rises to 67%, making the air feel even colder. For a detailed view of weather patterns, you can explore Ulan Bator weather in November.
The weather in August contrasts sharply with that of December. In August, temperatures range from a mild minimum of 0°C (33°F) to a warm maximum of 28°C (82°F), with an average of 14°C (58°F). The month experiences significant rainfall, totaling 83 mm (3.3 in) over about 13 days, accompanied by a comfortable humidity level of 58%. In stark contrast, December brings freezing temperatures, with a minimum of -39°C (-38°F) and an average of -21°C (-5°F), peaking at just -3°C (28°F). Additionally, precipitation is minimal at only 3 mm (0.1 in) and no rainy days, while the humidity rises to a high 89%. For more information on the weather during this time, check Ulan Bator weather in December.
As August rolls into Ulan Bator, the city experiences a notable shift in its weather dynamics compared to the preceding months. With maximum temperatures peaking at a warm 28°C, August stands out as one of the warmest months, allowing for outdoor activities and vibrant city life. While the average temperature hovers around a comfortable 14°C, the nights can still dip, reminding residents of the city's renowned temperature swings. Additionally, the month sees an increase in precipitation with about 83 mm over 13 days, contributing to a 58% humidity level that adds a refreshing touch to the air. This transitional weather serves as a bridge between the scorching summer and the coming chill of autumn. For a deeper dive into what to expect throughout the year, explore Ulan Bator Climate.