September Weather in Datong, China

Last updated: August 21, 2025

In September, Datong, China experiences a blend of warmth and moderate precipitation, making it an intriguing time of year. With maximum temperatures soaring to 38°C (101°F) and an average of 26°C (78°F), the days can feel quite hot, while the evenings offer a respite with minimums around 17°C (64°F). Rainfall is common during this month, with 113 mm (4.4 in) of total precipitation spread across approximately 10 days, often contributing to a humidity level of around 70%. This mix of heat and moisture creates a unique climate, ideal for those who enjoy warm weather interspersed with refreshing showers.

September Temperature in Datong

In Datong, China, September marks a transition towards cooler days as summer bids farewell. With minimum temperatures around 17°C (64°F) and averages reaching a comfortable 26°C (78°F), the month offers a pleasant reprieve from the intense summer heat experienced in July and August. The maximum temperatures hover around a high of 38°C (101°F), still holding onto the warm remnants of summer but gradually declining as autumn approaches. This trend not only highlights a significant drop from August’s peak but also sets the stage for the cooler embrace of October, making September a delightful time for visitors to enjoy the changing landscape without the extremes of earlier months.

September Weather in Datong: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Datong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Datong, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec434656657380858678665746
Data source: Temperature data for Datong generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Datong

In September, Datong experiences a moderate precipitation of 113 mm (4.4 in) over approximately 10 days, marking a transition from the heavier rains of the summer months to the drier conditions of autumn. This drop in precipitation follows the peak of July, which sees the highest levels at 205 mm (8.1 in), while August produces a substantial decrease to 121 mm (4.8 in). The trend indicates a gradual decline in rainfall as the city moves towards October, with its expected precipitation dropping to 65 mm (2.6 in). Overall, September's weather serves as a bridge, easing from the vibrant, wet summer into the crisp, dry autumn that Datong enjoys later in the year.

September Precipitation Trends in Datong

The chart displays monthly precipitation patterns in Datong, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Datong, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec6280161150189197205121113655535
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Datong

In Datong, China, September marks a subtle shift in the annual humidity cycle, with levels dropping to 70%—the lowest since January. This decline comes after a summer of high humidity, peaking at 89% in July. Following August's near-identical humidity level of 86%, September offers a brief respite before the moisture levels begin to creep back up in the fall months, reaching 82% in November. Overall, the transition from the humid summer to a drier September signals the onset of autumn, providing a fresh change in the air while still maintaining a moderately humid climate.

September Average Humidity in Datong

This chart illustrates the average monthly humidity levels in Datong, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Datong is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%75%86%86%86%87%89%86%70%73%83%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Datong

As summer transitions to autumn, the UV Index in Datong, China remains significant, with September showcasing a very high UV Index of 10. This trend is consistent with the peak summer months, where values reached an extreme level, particularly in July and August. Interestingly, the burn time decreases as the index rises, indicating that the risk of skin damage persists even as the season changes. With just 15 minutes required for potential burn, residents and visitors should continue to take precautions. As we move into October, the UV Index is expected to slightly decrease to 9, but it’s clear that awareness is key throughout the year. For more details, visit Datong UV Index.

Maximum UV Index Levels in Datong for September

The chart shows the monthly maximum UV Index (UVI) for Datong in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Datong typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec668101011121210974
Data source: Datong September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Datong

In Datong, China, September enjoys a delightful retreat from the summer heat, boasting 251 sunshine hours that herald the transition into autumn. This month, while seeing a dip from the sunlit peak of August's 313 hours, remains one of the sunniest of the year. The trend throughout the months showcases a gradual increase from January’s modest 155 hours, reaching a vibrant August before falling gently into the cooler days of October with 206 hours. This sunny narrative not only highlights September's significant brightness but also signifies a season of change, as the vibrant summer sunlight gradually intertwines with the crisp charm of autumn.

Monthly Sunshine Duration in Datong: September Highlighted

The September sunshine duration represents the total number of hours Datong experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec155h198h211h222h263h268h302h313h251h206h203h207h
Data source: Datong September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Datong During September

In Datong, China, September marks a significant shift in weather patterns, boasting a 62% chance of sunny days. This is a notable increase compared to the summer months, where the probability remains lower, peaking at just 35% in August. As the year progresses from the frigid winter depths of January's 50% to the brighter optimism of September, it's clear that fall presents a wonderful opportunity for outdoor activities under clear skies. With a transition from the wetter months of April and May, September offers a refreshing reprieve and a vibrant backdrop for both locals and visitors to enjoy the beauty of Datong.

Percentage of Sunny Days in September in Datong

The chart illustrates the percentage of sunny days in Datong throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Datong experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec50%39%23%14%25%20%32%35%62%33%52%55%
Data source: Datong September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Datong in September

As summer gently transitions into autumn in Datong, China, September brings a pleasing return to 12 hours of daylight, marking a slight decline from the peak days of summer. This month reflects a gradual shift, as daylight slowly wanes from the extended hours enjoyed in July and August, where residents basked in up to 13 hours of sunshine. The progression through the year showcases a well-defined rhythm, with winter months huddled around 10 hours of daylight, while spring summons a gradual increase, peaking in June. September, therefore, serves as a transitional bridge, hinting at the cooler days ahead while still granting enough sunlight to savor the lingering warmth of summer.

Average Daylight Hours in Datong for September

The chart illustrates the variation in daylight duration in Datong throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 29m11h 8m11h 59m12h 51m13h 35m13h 57m13h 46m13h 8m12h 18m11h 26m10h 41m10h 18m
Data source: Datong daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Datong

As September settles over Datong, the average wind speed gently drops to 2.4 m/s (5 mph), mirroring the calm before the seasonal shift. This subtle breeze follows a pattern seen throughout the summer months, where wind speeds have remained consistent yet modest. In contrast to the slightly stronger gusts of October, which jump to 3.4 m/s (8 mph), September reflects a serene transition, making it a perfect time to enjoy the lingering warmth of late summer. The steady winds from the earlier months provide a backdrop for the city's gradual move towards autumn, hinting at the changing rhythms of nature and the cooler days to come.

Average September Wind Speed in Datong

The chart displays monthly wind speed patterns in Datong, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.52.92.62.52.42.62.42.4 m/s3.42.42.5
Data source: Datong September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Datong Compares to Other Months

Weather in Datong varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Datong, focusing on differences in temperature, rainfall, humidity, and UV levels.

September and January present stark contrasts in weather. In September, temperatures range from a mild 17°C (64°F) at night to a scorching 38°C (101°F) during the day, with an average of 26°C (78°F). This month also receives more precipitation, totaling 113 mm (4.4 in) over about 10 days, while humidity hovers around 70%. In contrast, January features a much colder climate, with minimum temperatures plummeting to -6°C (21°F) and a maximum of only 20°C (68°F), averaging 6°C (43°F). The precipitation is lower in January, totaling 62 mm (2.5 in) across around 8 days, and humidity remains similar at 71%. These shifts illustrate how September is characterized by warmth and moisture, while January brings colder temperatures and drier conditions. For more specific weather details, you can refer to Datong weather in January.

In comparing the weather between September and February, there is a striking contrast in temperatures and conditions. September boasts a warm average temperature of 26°C (78°F), with highs soaring up to 38°C (101°F), while February's averages plummet to a mere 8°C (47°F), experiencing minimums that can drop below freezing at -4°C (26°F). Precipitation is slightly more prominent in September at 113 mm (4.4 in) over approximately 10 days, compared to February, which sees 79 mm (3.1 in) spread over 12 days. Both months exhibit high humidity levels, but September's humidity at 70% is slightly lower than February’s 75%. For a detailed look at February's weather patterns, you can check Datong weather in February.

In September, the weather is notably warmer, with average temperatures reaching around 26°C (78°F) and maximum highs soaring to 38°C (101°F). During this month, you can expect around 113 mm (4.4 in) of precipitation over approximately 10 days, creating a humidity level of 70%. In contrast, March brings a cooler climate, where temperatures range from a minimum of 3°C (39°F) to an average of 13°C (57°F) and maxing out at 30°C (86°F). March typically sees more precipitation, averaging 161 mm (6.3 in) across 16 days, and higher humidity levels at 86%. For more details, you can check Datong weather in March.

When comparing the weather in September to that of April, notable differences emerge in temperature and precipitation patterns. September tends to be warmer, with an average temperature of 26°C (78°F) and maximums reaching up to 38°C (101°F), while April's average temperature is a cooler 18°C (65°F), peaking at 32°C (91°F). In terms of humidity, September has a lower average at 70%, compared to April’s higher humidity level of 86%. Additionally, April experiences more precipitation, with 150 mm (5.9 in) over 15 days, compared to September's 113 mm (4.4 in) over 10 days. For more detailed insights on April's weather, visit Datong weather in April.

In September, the weather features a warmer average temperature of 26°C (78°F), with maximum highs reaching up to 38°C (101°F), while May sees a cooler average of 23°C (73°F) and maximums of 35°C (96°F). However, May experiences greater humidity at 86%, compared to 70% in September, making it feel more sultry. Additionally, precipitation is higher in May, with 189 mm (7.4 in) falling over 15 days, whereas September has 113 mm (4.4 in) over 10 days. For a detailed look at May weather, you can check Datong weather in May.

In comparing the weather between September and June, we can observe some distinct differences. September typically experiences slightly warmer average temperatures, with a minimum of 17°C (64°F) and a maximum of 38°C (101°F), while June's temperatures range from a minimum of 17°C (63°F) to a maximum of 35°C (95°F). Precipitation is notably higher in June, with 197 mm (7.8 in) over 16 days, compared to September's 113 mm (4.4 in) over 10 days. Furthermore, June tends to be more humid, with levels reaching 87%, while September's humidity sits at 70%. For a more detailed look into June's weather specifics, you can visit Datong weather in June.

September and July bring distinct weather patterns, showcasing the transition from the height of summer to the early fall. In July, temperatures are generally warmer, with a minimum of 22°C (71°F) and an average of 29°C (85°F), reaching highs up to 40°C (103°F). This month also experiences higher humidity levels at 89% and significantly more rainfall, with 205 mm (8.1 in) over 14 days. In contrast, September has a slightly cooler climate with minimum temperatures around 17°C (64°F) and an average of 26°C (78°F), peaking at 38°C (101°F). Although September has less precipitation—113 mm (4.4 in) across 10 days—the humidity remains substantial at 70%. The combination of these factors makes July feel more oppressive, while September offers a gradual easing into a more comfortable fall atmosphere. For a detailed look at July weather in Datong, visit Datong weather in July.

In comparing the weather of September and August, September presents a slightly cooler and more comfortable environment. The average temperature in September reaches 26°C (78°F), which is lower than August's warmer average of 30°C (86°F). Additionally, September experiences a decrease in minimum temperatures, with lows of 17°C (64°F) compared to August's 20°C (68°F). While both months see substantial rainfall, September's 113 mm (4.4 in) of precipitation over 10 days is slightly less than August's 121 mm (4.8 in) over 12 days. Humidity is also lower in September at 70%, compared to the more humid conditions of 86% in August. For more detailed insights, you can check Datong weather in August.

September and October showcase a notable transition in weather patterns. In September, the minimum temperature hovers around 17°C (64°F) with an average of 26°C (78°F), reaching a peak of 38°C (101°F). This month is characterized by higher precipitation, totaling 113 mm (4.4 in) over about 10 days, and humidity levels around 70%. In contrast, October experiences a cooler climate with minimum temperatures dropping to 11°C (52°F) and an average of 19°C (66°F), while the maximum reaches 37°C (98°F). Rainfall decreases to 65 mm (2.6 in) over 9 days, and humidity remains slightly higher at 72%. For more details on October weather, you can check Datong weather in October.

September and November present a stark contrast in weather conditions. In September, temperatures can soar with highs reaching up to 38°C (101°F), accompanied by an average of 26°C (78°F) and relatively high humidity at 70%. The month also experiences considerable rainfall, with 113 mm (4.4 in) of precipitation over about 10 days. In contrast, November brings cooler temperatures, with a much lower average of 14°C (58°F) and a maximum of 28°C (83°F). The minimum temperature drops to 4°C (39°F), and while it still experiences some precipitation, it is significantly reduced to 55 mm (2.1 in) over 9 days. Humidity also rises in November to 82%, contributing to a different overall weather experience. For more details on November weather in Datong, visit Datong weather in November.

In September, the weather is quite warm, with temperatures ranging from a minimum of 17°C (64°F) to a scorching maximum of 38°C (101°F) and an average of 26°C (78°F). During this month, precipitation is considerable, with 113 mm (4.4 in) spread over 10 days, and humidity sits at a relatively high 70%.

In contrast, December brings a stark decrease in temperatures, with a minimum of -3°C (26°F), an average of 8°C (47°F), and a maximum of 19°C (66°F). The precipitation also decreases significantly to 35 mm (1.4 in) over 7 days, while humidity rises slightly to 76%. For more details on December weather, you can refer to Datong weather in December.

Compare Datong's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Datong

As September arrives in Datong, the weather undergoes a notable transition compared to the scorching summer months. While temperatures remain warm with a pleasant average of 26°C (78°F), the intensity of the heat alleviates slightly, providing a more comfortable atmosphere for outdoor activities. Increased humidity adds a touch of mugginess, yet it’s countered by refreshing showers, evidenced by 113 mm of precipitation over about 10 days. This combination of moderate warmth and seasonal rain signifies the onset of autumn, making September a unique and transitional month in Datong. For a deeper dive into the climate patterns throughout the year, explore Datong Climate.