Last updated: August 21, 2025
In September, Tongzhou, China, experiences a dynamic climate, characterized by a maximum temperature of 36°C (97°F) and a comfortable average of 22°C (72°F). The mornings can start cool, dipping to a minimum of 9°C (48°F), making it a month of significant temperature variation. This time of year also sees approximately 60 mm (2.4 in) of rainfall spread across 5 days, contributing to the area's overall humidity level of 66%. Whether you’re enjoying the warm afternoons or the cooler evenings, September in Tongzhou offers a unique blend of warmth and refreshing breezes.
As September arrives in Tongzhou, China, the summer heat begins to wane, bringing a refreshing change in temperatures. With minimums of 9°C (48°F) and average highs reaching up to 36°C (97°F), the month serves as a transition between the sweltering summer and the cooler autumn. Daytime temperatures remain pleasantly warm, ideal for outdoor activities, while the crisp evening air hints at the approaching fall. This month stands out for its balanced climate, making it a favorite time for locals and visitors alike to enjoy the vibrant surroundings before the chill of winter sets in. The September weather encapsulates a beautiful harmony, with a comfortable average temperature of 22°C (72°F) that beckons everyone to savor the last days of warmth.
September in Tongzhou, China, experiences a noticeable shift as the summer grows past its torrid peak, bringing 60 mm (2.4 in) of precipitation over 5 days. This marks a significant decrease from the previous months, particularly July and August, which recorded dramatic highs with 216 mm (8.5 in) and 138 mm (5.4 in) respectively. The rainfall in September serves as a gentle transition into autumn, providing relief from the summer heat while sustaining greenery and agriculture. As the year progresses, the downward trend in both precipitation amount and frequency continues, with October anticipating an even drier spell, illustrating Tongzhou's natural rhythm as it moves towards the quieter months ahead.
September in Tongzhou, China, marks a transition as the summer humidity begins to wane. Following the peak levels of 78% seen in both July and August, September sees a notable drop to 66%. This reduction signals the gradual shift toward autumn, yet the air remains relatively moist compared to the winter months ahead. As summer gives way to fall, the humidity continues to trend downward, with October expected to hold at 70% before further decreasing in November. This pattern highlights Tongzhou's characteristic seasonal fluctuations, where the warmth of summer is gradually replaced by the crispness of autumn.
As September rolls in Tongzhou, China, the UV Index begins to reflect the gradual transition from the intense summer sun to the more moderate autumn rays. This month sees a UV Index of 7, indicating a high exposure category, which requires vigilance in sun protection with a burn time of just 25 minutes. Compared to the sweltering heights of summer, where indices peaked at 10 in July, September offers a slight reprieve but still demands caution and awareness. With the UV levels decreasing in October to 6, it’s an excellent reminder that even as the temperatures begin to cool, the sun's rays can still pose a risk. For more detailed insights on UV exposure throughout the year, check out the full guide at Tongzhou UV Index.
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As September graces Tongzhou, the sunshine persists, casting a warm glow with 282 hours of sunlight. This marks a gentle decline from the vibrant summer months, peaking at 327 hours in May. The consistent pattern reveals a summer filled with abundant light, with June and August also showing strong sunlit days at 316 and 304 hours, respectively. As the year transitions towards autumn, daylight hours gradually taper off, with September comfortably above the winter months, yet trailing the sun-drenched late spring and summer. This rhythmic dance of sunlight not only shapes the seasons but also enriches the vibrant atmosphere of Tongzhou, inviting both locals and visitors to bask in the lingering warmth of early autumn.
In Tongzhou, China, the likelihood of sunny weather in September tends to be modest, with a 43% chance of sunshine. This places September in the lower half of the spectrum compared to other months, particularly when you consider the peak sunny periods of January, which boasts an impressive 81%, and the more favorable November at 73%. As summer wanes and autumn approaches, the sunshine likelihood dips slightly compared to the lively months of May and June. However, the trend indicates a gradual increase in sun exposure as the year progresses towards October, suggesting a hopeful transition into clearer skies as the days grow shorter.
As September rolls into Tongzhou, China, daylight begins to wane, signaling the transition from the vibrant summer months. With approximately 12 hours of daylight, the month strikes a balance between the longer days of summer and the shorter days of autumn that follow. This marks a gentle decline from the peak of 14 hours in June through August, reflecting nature's rhythmic shift towards the cooler seasons. As the sun sets a bit earlier each evening, residents are reminded to savor the lingering warmth and gradually prepare for the cozy months ahead, creating a perfect backdrop for the rich hues of fall.
In September, the winds in Tongzhou, China, begin to transition subtly from the summer calm, averaging 1.9 m/s (4 mph). This slight uptick comes after a notably low August, where the winds dipped to 1.7 m/s (4 mph), marking a period of relative stillness. As autumn approaches, the average wind speed in September hints at a gentle stirring, foreshadowing the changes to come. While the winds remain on the lighter side compared to the spring and early summer months, this gradual increase underscores a consistent trend toward slightly brisker conditions, paving the way for the more invigorating winds of autumn.
Weather in Tongzhou varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Tongzhou, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather conditions. In September, temperatures fluctuate between a minimum of 9°C (48°F) and a maximum of 36°C (97°F), with an average of 22°C (72°F). This month experiences moderate precipitation of 60 mm (2.4 in) over approximately 5 days, accompanied by a humidity of 66%. In stark contrast, January sees frigid temperatures ranging from a minimum of -19°C (-2°F) to a maximum of 11°C (53°F), with an average temperature of -4°C (26°F). Notably, this winter month encounters negligible precipitation, with only 1 mm (0.0 in) recorded over no rainy days, and a lower humidity of 40%. For a more detailed overview, you can check Tongzhou weather in January.
September and February exhibit contrasting weather patterns. In September, temperatures range from a mild 9°C (48°F) at night to a blistering 36°C (97°F) during the day, with an average of 22°C (72°F). The month sees about 60 mm (2.4 in) of precipitation over five days and a relatively high humidity level of 66%. In stark contrast, February presents much colder conditions, with nighttime lows plummeting to -13°C (10°F) and daytime highs reaching a maximum of 22°C (72°F), averaging around 0°C (31°F). February is considerably drier, with only 6 mm (0.2 in) of rainfall over just one day and lower humidity at 41%. For a detailed look at February conditions, you can visit Tongzhou weather in February.
September and March exhibit notable differences in weather patterns. In September, temperatures typically range from a cool 9°C (48°F) at night to a warm average of 22°C (72°F) during the day, reaching highs of up to 36°C (97°F). The month experiences about 60 mm (2.4 in) of precipitation across roughly five days, with humidity levels around 66%. In contrast, March sees much cooler conditions, with nighttime lows dropping to -6°C (21°F) and an average daytime temperature of 8°C (46°F), peaking at 27°C (80°F). Precipitation is minimal in March, totaling just 15 mm (0.6 in) over about three days, and humidity is lower at 48%. For more details, you can check Tongzhou weather in March.
September and April exhibit contrasting weather patterns, highlighting the transition into autumn and spring respectively. In September, temperatures range significantly, with a minimum of 9°C (48°F) and an average of 22°C (72°F), peaking at a warm 36°C (97°F). The month experiences about 60 mm (2.4 in) of precipitation over roughly 5 days, accompanied by a humidity level of 66%. In contrast, April sees cooler temperatures, with a minimum of -1°C (30°F) and an average of 16°C (60°F), although it can still reach highs of 35°C (95°F). Precipitation is lower at 21 mm (0.8 in), occurring over just 2 days, and humidity is slightly less at 61%. For more details on April weather, visit Tongzhou weather in April.
When comparing the weather in September and May, both months exhibit similar average temperatures around 22°C (72°F), but the extremes differ significantly. September experiences a minimum temperature of 9°C (48°F) and a maximum of 36°C (97°F), while May has a cooler minimum of 3°C (39°F) and an even higher maximum of 39°C (103°F). Additionally, September sees more precipitation at 60 mm (2.4 in) over five days, compared to May's lighter rainfall of 21 mm (0.8 in) over just three days. Humidity levels are also higher in September at 66%, compared to 58% in May. For more detailed insights on May weather, visit Tongzhou weather in May.
September and June present distinct weather characteristics that cater to different preferences. In September, temperatures range from a comfortable 9°C (48°F) to a warm 36°C (97°F), with an average of 22°C (72°F). The month sees about 60 mm (2.4 in) of rainfall over approximately 5 days, accompanied by a humidity level of 66%. In contrast, June offers warmer conditions, with minimum temperatures of 13°C (55°F) and maximums reaching up to a sweltering 41°C (106°F). The average temperature in June is higher at 27°C (81°F), but it also experiences slightly less precipitation at 46 mm (1.8 in) over 7 days, along with a humidity level of 64%. For more detailed information, check out Tongzhou weather in June.
September weather is marked by a more moderate temperature range, with minimums around 9°C (48°F) and maximums reaching up to 36°C (97°F), resulting in a comfortable average of 22°C (72°F). In contrast, July is significantly warmer, with temperatures ranging from a minimum of 17°C (63°F) to a peak of 40°C (105°F), averaging 28°C (82°F). Additionally, July experiences much higher precipitation, totaling 216 mm (8.5 in) over 15 days, compared to September's 60 mm (2.4 in) spread over just 5 days. The humidity is also higher in July, averaging 78% compared to September's 66%. For more details on July's climate, check out Tongzhou weather in July.
In comparing the weather between September and August, September generally experiences milder temperatures, with a minimum of 9°C (48°F) and an average of 22°C (72°F), compared to August's higher minimum of 14°C (58°F) and average of 26°C (79°F). While August boasts slightly warmer maximum temperatures, reaching up to 37°C (99°F), September's warmest day can still reach 36°C (97°F). Additionally, September sees significantly less rainfall, with only 60 mm (2.4 in) over 5 days, while August is much wetter, accumulating 138 mm (5.4 in) across 12 days. Moreover, the humidity in September is lower at 66%, compared to the more humid August, which sits at 78%. For more details, you can view Tongzhou weather in August.
September typically offers warm temperatures with an average high of 22°C (72°F) and peaks reaching up to 36°C (97°F), while nighttime lows maintain a milder 9°C (48°F). Precipitation during this month is moderate, with about 60 mm (2.4 in) spread over 5 days, and humidity averages around 66%. In contrast, October sees a noticeable drop in temperatures; the average high is 13°C (56°F), with a minimum dipping to -1°C (31°F). Although the total precipitation decreases to 31 mm (1.2 in) over just 3 days, humidity remains fairly high at 70%. This shift marks a transition into cooler, crisper weather as autumn takes hold. For more details on October conditions, visit Tongzhou weather in October.
September and November present stark contrasts in weather patterns. In September, temperatures can range significantly from a low of 9°C (48°F) to a scorching high of 36°C (97°F), with an average of 22°C (72°F). This month experiences about 60 mm (2.4 in) of precipitation over five days, coupled with a humidity level of 66%. In contrast, November brings much colder conditions, with temperatures plummeting to a minimum of -9°C (16°F) and an average of just 5°C (41°F). The highs are more moderate, reaching up to 25°C (77°F), but overall precipitation diminishes to 16 mm (0.6 in) over only one day, and humidity rises slightly to 68%. For a deeper dive into November's climate in Tongzhou, you can visit Tongzhou weather in November.
September and December present starkly contrasting weather patterns. In September, temperatures range from a mild 9°C (48°F) at night to a sweltering 36°C (97°F) during the day, with an average of 22°C (72°F). The month experiences moderate rainfall, totaling about 60 mm (2.4 in) over five days, coupled with a humidity level of 66%. In contrast, December brings a chill, with temperatures plummeting to a low of -14°C (7°F) and a high of only 12°C (54°F), averaging around -2°C (28°F). This month is characterized by minimal precipitation of just 2 mm (0.1 in) and no rainy days, with humidity decreasing to 51%. For more insights into the cold December weather, you can check out Tongzhou weather in December.
As September unfolds in Tongzhou, the weather showcases a delightful transition from the sweltering summer heat to a more temperate climate. With average temperatures settling around a comfortable 22°C (72°F), residents and visitors can enjoy pleasant days without the extremes often felt in the peak summer months. While occasional rainfall makes an appearance, contributing around 60 mm over just five days, humidity remains at a manageable 66%, allowing for comfortable outdoor activities. This month stands apart, offering a refreshing blend of warm days and cooler nights compared to the harsh summer temperatures, making it an ideal time to explore the beauty of Tongzhou. For a deeper understanding of what to expect throughout the year, visit Tongzhou Climate.