Last updated: August 28, 2025
Discover the fascinating September weather pattern in Erdenet, Mongolia, where temperatures exhibit a remarkable range. The month sees a maximum temperature of 25°C (77°F), providing pleasant warmth during the day, while the average cools to 7°C (45°F), perfect for layering. As night falls, the mercury can plunge to a chilly minimum of -8°C (17°F). Expect 43 mm (1.7 in) of precipitation spread over 8 days, contributing to the month’s relatively high humidity level of 78%. Embrace the crisp, refreshing air and the unique blend of seasonal elements that September brings to this vibrant region.
In September, Erdenet, Mongolia, begins to transition from the warmth of summer to the briskness of autumn. The temperatures exhibit a notable range, with minima dropping to -8°C (17°F), and daytime highs reaching a pleasant 25°C (77°F). The average temperature of 7°C (45°F) marks a comfortable midpoint that invites outdoor activities while hinting at the approaching chill of winter. As the month progresses, the landscape shifts subtly, showcasing the first signs of fall as the vibrant hues of summer gradually yield to the earthy tones of autumn. This transitional phase captures the essence of the Mongolian climate, where stark contrasts define each season, making September a unique period of change and beauty.
In September, Erdenet, Mongolia experiences a notable shift in precipitation, receiving an average of 43 mm (1.7 in) of rain over 8 days. This amount is a significant decrease from the heavy downpours witnessed in July and August, where rainfall peaked at 124 mm (4.9 in) and 125 mm (4.9 in), respectively. With the summer months tapering off, September serves as a transition into the drier fall season, marked by diminishing precipitation days. The gradual decline in rainfall during this time hints at the approaching cold winter, making September a pivotal month in the annual weather patterns of Erdenet.
In Erdenet, Mongolia, the humidity tends to ebb and flow throughout the year, creating a fascinating climate experience. September sees a notable increase to 78%, a slight rise from the summer months when humidity hovered around the low to mid-70s. This shift hints at the transition towards autumn, where the air becomes more saturated as temperatures begin to cool. The highest humidity is found in the winter months, reaching a peak of 96% in December, while the driest summer period occurs in May and June. As the seasons change, the humidity levels reflect the delicate balance of Erdenet's climate, marking September as a pivotal month in this transitional journey.
In September, the UV Index in Erdenet, Mongolia, reflects a gradual decrease from the peak summer months, registering a moderate level of 6. This shift indicates the transition from the intense very high exposure experienced in the preceding months of June through August, where burn time was as short as 15 minutes. Now, with a high exposure category, locals and visitors can enjoy outdoor activities with a burn time of 25 minutes, allowing for a more comfortable sun experience. As the year progresses into autumn, it's crucial to maintain sun protection, particularly as the index has remained above the low levels seen earlier in the year. For more detailed information on the UV levels throughout the month, check out Erdenet UV Index.
UV Risk Categories
In Erdenet, Mongolia, September marks a transitional phase as the summer days begin to wane, offering a pleasant 326 hours of sunshine. This is a noticeable decrease from the peak brightness of May and June, which boast impressive totals of 390 and 381 hours respectively. As the year progresses into autumn, the sunlight gradually diminishes, yet September still shines brighter than the colder months ahead, such as November and December, which see significantly less sunshine at 262 and 250 hours. Overall, September serves as a reminder of summer's lingering warmth while heralding the approach of winter, reflecting the region's shifting climate with grace.
In Erdenet, Mongolia, September marks a notable shift in weather patterns, boasting a 57% chance of sunny days—the highest since January. As summer transitions into autumn, the likelihood of sunshine rises significantly compared to the gloomy days of midsummer in July and August, which dip to 32%. This uptick in sunny weather in September suggests a refreshing balance, inviting both locals and visitors to take advantage of the clear skies before the chill of autumn takes hold. As the month progresses, the promise of brighter days indicates an optimistic turn towards a season rich with vibrant landscapes and outdoor activities.
As September unfolds in Erdenet, Mongolia, daylight begins to wane, offering approximately 12 hours of sunlight—a notable decrease from the long, bright days of summer. This transition marks a shift from June's peak of 16 hours and July's 15 hours, gradually leading into the earlier sunsets of autumn. While September still enjoys more daylight than the winter months that follow—like the 8 hours in January and December—its bright days signal a gradual retreat toward the coziness of fall. With each passing day, the rhythm of life in Erdenet adjusts, embracing the beauty of changing seasons as nature prepares for the colder months ahead.
As September arrives in Erdenet, Mongolia, the wind begins to pick up slightly, reaching an average speed of 3.0 m/s (7 mph). This marks a subtle rebound from the summer's stillness, where wind speeds dipped to their lowest in July at just 1.9 m/s (4 mph). The trend reveals a gradual transition as the summer months, characterized by gentle breezes and warmth, give way to the crisp air of autumn. Following September, October offers a slight decrease to 2.9 m/s (7 mph), suggesting that while autumn breezes are refreshing, they remain moderate. Overall, September serves as a bridge between the languid stillness of summer and the brisk gusts of the coming months.
Weather in Erdenet varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Erdenet, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present strikingly different weather conditions. In September, temperatures range from a chilly minimum of -8°C (17°F) to a pleasant maximum of 25°C (77°F), with an average of 7°C (45°F). The month experiences relatively moderate precipitation, with about 43 mm (1.7 in) over 8 rainy days, accompanied by a humidity level of 78%. In stark contrast, January plunges into the depths of winter, where temperatures can drop to a harsh minimum of -38°C (-37°F) and only reach a maximum of -5°C (24°F), averaging -21°C (-6°F). This month sees minimal precipitation — just 2 mm (0.1 in) — with dry conditions persisting for the entire month and humidity levels rising to 94%. For a more detailed look at January weather, you can visit Erdenet weather in January.
September and February exhibit stark contrasts in weather patterns. September welcomes milder temperatures, with a range from a chilly -8°C (17°F) to a pleasant 25°C (77°F), averaging around 7°C (45°F). The month receives about 43 mm (1.7 in) of precipitation over approximately 8 days, accompanied by a relatively moderate humidity of 78%. In contrast, February is characterized by its severe cold, with temperatures plummeting to a minimum of -35°C (-30°F) and averaging a frigid -18°C (1°F). The maximum temperature barely reaches 6°C (42°F), and the month sees just 7 mm (0.3 in) of precipitation over a mere single day, while humidity rises to 89%. For a detailed look at what to expect, check out Erdenet weather in February.
September and March present striking contrasts in weather conditions. In September, temperatures range from a chilly -8°C (17°F) at night to a pleasant maximum of 25°C (77°F) during the day, making it a relatively mild month with an average temperature of 7°C (45°F). The humidity sits at 78%, and the month experiences some moderate rainfall, totaling 43 mm (1.7 in) over about 8 days.
In contrast, March is considerably colder, with nighttime lows plummeting to -29°C (-19°F) and daily highs reaching only up to 13°C (55°F), resulting in an average temperature of -8°C (18°F). Precipitation is significantly lower in March, with only 12 mm (0.5 in) spread over just 3 days, while humidity is slightly higher at 84%. For a more detailed look at the specific conditions, you can check out Erdenet weather in March.
September and April exhibit notable contrasts in weather conditions. In September, temperatures range from a minimum of -8°C (17°F) to a maximum of 25°C (77°F), with an average of 7°C (45°F), while April experiences a broader temperature range with a minimum of -22°C (-7°F) and a maximum of 24°C (75°F), averaging just 1°C (34°F). Precipitation is slightly higher in September at 43 mm (1.7 in) over 8 days, compared to April's 34 mm (1.3 in) across 6 days. Moreover, humidity levels are similar, with September at 78% and April slightly higher at 80%. For more specific details on April weather, check out Erdenet weather in April.
In comparing the weather of September and May, both months exhibit a range of temperatures, but with notable differences. September features a minimum temperature of -8°C (17°F) and an average of 7°C (45°F), peaking at a comfortable 25°C (77°F). In contrast, May has a slightly colder minimum of -14°C (7°F) and an average of 8°C (46°F), with a maximum temperature that is just a degree higher at 26°C (79°F). Precipitation levels are fairly similar, with September receiving 43 mm (1.7 in) over 8 days, while May has 37 mm (1.5 in) across 9 days. Humidity levels are also different; September has a higher humidity of 78%, compared to May's 71%. For more detailed information, you can visit Erdenet weather in May.
When comparing the weather in September to that of June, notable differences emerge. September typically experiences a broader temperature range, with minimums dropping to -8°C (17°F) and maximums reaching 25°C (77°F), while the average temperature sits around 7°C (45°F). In contrast, June presents milder temperatures, with a lower minimum of -2°C (29°F), an average of 13°C (56°F), and maximums peaking at 30°C (86°F). Rainfall is more frequent in June, accumulating 67 mm (2.6 in) over 12 days, compared to September's 43 mm (1.7 in) over just 8 days. Additionally, September tends to be more humid with an average of 78%, slightly higher than June's 71%. For a closer look at June's weather, visit Erdenet weather in June.
In comparing the weather of September and July, there are notable differences in temperature, precipitation, and humidity. September experiences a broader temperature range with a minimum of -8°C (17°F) and a maximum of 25°C (77°F), averaging around 7°C (45°F). In contrast, July is warmer, with minimum temperatures of 4°C (39°F) and maximums reaching 29°C (85°F), leading to an average of 15°C (59°F). Additionally, September sees significantly less precipitation, with 43 mm (1.7 in) over 8 days, compared to July's 124 mm (4.9 in) spread over 18 days. Despite July being wetter, it has a slightly lower humidity level at 75%, compared to September's 78%. For more detailed insights into July's weather, you can refer to Erdenet weather in July.
In comparing the weather patterns of August and September, September experiences a wider range of temperatures, with minimums dropping to -8°C (17°F) and an average of 7°C (45°F), while August maintains milder conditions with a minimum of 1°C (33°F) and an average of 13°C (55°F). Notably, both months share the same maximum temperature of 25°C (77°F). However, September sees significantly less precipitation, totaling 43 mm (1.7 in) over 8 days compared to August’s 125 mm (4.9 in) across 19 days. Additionally, September's humidity rises slightly to 78%, compared to August's 74%. For a detailed look at August weather, you can visit Erdenet weather in August.
September and October show a notable shift in weather patterns. In September, temperatures tend to be milder, with a minimum of -8°C (17°F) and an average of 7°C (45°F), peaking at a pleasant 25°C (77°F). This month also records about 43 mm (1.7 in) of precipitation over 8 days, with humidity levels at 78%. Conversely, October brings much colder conditions, marked by a minimum of -17°C (2°F) and an average of -2°C (28°F), with a maximum of 17°C (62°F). Precipitation decreases to 21 mm (0.8 in) over just 4 days, though humidity rises to 86%. For further details, visit Erdenet weather in October.
September and November present markedly different weather conditions. In September, temperatures range from a chilly -8°C (17°F) at night to a pleasant high of 25°C (77°F) during the day, with an average of 7°C (45°F) and a total precipitation of 43 mm (1.7 in) over about 8 days. The humidity sits at a moderate 78%. In contrast, November plunges into much colder territory, with minimum temperatures reaching -34°C (-30°F) and an average of -12°C (11°F). The month sees a stark reduction in precipitation to just 7 mm (0.3 in) over 2 days, while humidity increases to a high 94%. For more details, you can check Erdenet weather in November.
In September, temperatures range from a chilly minimum of -8°C (17°F) to a warm maximum of 25°C (77°F), with an average of 7°C (45°F). The month sees a moderate amount of precipitation totaling 43 mm (1.7 in) over approximately 8 days, alongside a humidity level of 78%. In contrast, December experiences a dramatic drop in temperatures, with a minimum of -37°C (-35°F) and an average of -19°C (-1°F), reaching a maximum of only -2°C (29°F). This month is notably dry, with just 2 mm (0.1 in) of precipitation occurring over 0 days and a much higher humidity of 96%. For more detailed information about December weather in Erdenet, you can visit Erdenet weather in December.
As September rolls in, Erdenet experiences a significant shift in weather compared to the warmer summer months. Temperatures begin to dip, with a noticeable coolness where nights can be quite brisk. This transitional month showcases a mix of mild days and chillier nights, creating a unique atmosphere perfect for outdoor activities. Precipitation also sees an uptick, with several rainy days contributing to the lush landscapes, while the humidity lingers at a relatively high level, adding to the refreshing feel of the season. If you're looking to explore Erdenet's distinct climate during this time, check more detailed insights at Erdenet Climate.