Last updated: August 21, 2025
September in Shanhaiguan, China offers a delightful transition into autumn, with daily maximum temperatures reaching a pleasant 30°C (87°F) and an average of 22°C (71°F). Nighttime brings cooler air, with temperatures dipping to a refreshing 13°C (55°F). The month sees about 66 mm (2.6 in) of rainfall spread across approximately 7 days, ensuring the landscape retains its lushness. With an average humidity of 66%, the climate remains comfortably mild, presenting an ideal setting for outdoor exploration and appreciation of the region's natural beauty.
In September, Shanhaiguan experiences a delightful transition as summer gives way to the early hints of autumn. With temperatures ranging from a minimum of 13°C (55°F) to a comfortable maximum of 30°C (87°F), the average climbs to a pleasant 22°C (71°F). This month strikes a balance, offering warm days that still carry the warmth of summer without the intense heat of July and August. With clear skies and cooling breezes, September invites outdoor exploration, making it an ideal time to soak in the natural beauty and historical sites of the region before the cooler months set in.
In September, Shanhaiguan experiences a notable shift in precipitation patterns, with 66 mm (about 2.6 inches) of rain falling over 7 days. This marks a decline from the intense downpours of August, which averaged 235 mm (9.2 inches) across 13 days, yet it still reflects a significant amount of rainfall that prepares the landscape for the upcoming autumn. The transition from late summer to early fall is evident, as September's precipitation serves to sustain the region's lush greenery, punctuated by the cooler temperatures that begin to settle in. As the year progresses, this dip in rainfall foreshadows the drier months ahead, creating an essential balance in Shanhaiguan’s annual climate cycle.
September in Shanhaiguan, China, marks a notable transition in humidity levels, settling at 66%. This figure, while lower than the peak summer months of July and August—where humidity soared to 82% and 80%, respectively—indicates a gradual decrease as the region begins to shift towards fall. Interestingly, September's humidity reflects a return to the balance seen in the spring months, where levels were at 63% in April and 66% in May. This pattern hints at a tendency for humidity to rise throughout the summer before tapering off as autumn approaches, making September a bridge between the sweltering heat of summer and the cooler, more comfortable conditions of fall.
As September rolls into Shanhaiguan, the UV Index reflects a high level of UV radiation at 7, with an estimated burn time of 25 minutes. This marks a slight decline from the extreme levels seen in July and August, which boasted UV Index values of 11 and 10, respectively. The trend through the summer months demonstrates a peak UV exposure that can quickly lead to skin damage if precautions aren’t taken. As we transition into autumn, September continues to emphasize the importance of sun safety, reminding residents and visitors alike to remain vigilant against harmful rays. For more detailed information, check the Shanhaiguan UV Index.
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As autumn begins to unfurl in Shanhaiguan, September enjoys a generous 288 hours of sunshine, making it the fifth sunniest month of the year. This slight decline from the summer's peak reflects the transition into the cooler fall months, yet it still offers plenty of bright days for outdoor explorations. Interestingly, while September's sunlight is less than the summer months—such as July and August, which boast over 320 hours—it remains significantly higher than the winter months, like January and November, which struggle to reach 250 hours. This trend underscores the enduring warmth of early fall, inviting both locals and visitors to enjoy the lingering sunshine before winter takes its grip.
As September rolls in Shanhaiguan, the likelihood of experiencing sunny weather presents a moderate chance of 45%. This marks a slight improvement from the mid-summer months of July and August, where the sun shone down only 28% and 47% of the time, respectively. Interestingly, September finds itself nestled between the cooler climes of late summer and the return of brighter days in October, which boasts a 60% chance of sunshine. While not the sunniest month of the year, September offers a pleasant transition, hinting at the optimism of blue skies as summer begins to fade.
As the warmth of summer gives way to the crispness of autumn, September in Shanhaiguan, China, experiences a gentle decline in daylight duration, offering around 12 hours of daylight. Following the peak summer months, where sunlight lingers for 14 hours, September marks a transition where the days start to shorten, yet not drastically. This gradual shift suggests a harmonious rhythm in nature, as the vibrant days of August with their 13 hours of light prepare the way for the approaching cooler seasons. October will bring even less light, dropping to 11 hours, reinforcing the cyclical dance of daylight throughout the year, connecting each month in a fluid progression from the long days of summer to the shorter, cozier ones of winter.
As September arrives in Shanhaiguan, the wind begins to pick up again, averaging 3.0 m/s (7 mph). Following a summer of gentle breezes, with the lowest winds recorded in August at 2.4 m/s (5 mph), September marks a refreshing change with a return to more moderate gusts. This revival of wind speed is a prelude to the brisk months ahead, as autumn takes hold. Interestingly, the average wind speed in Shanhaiguan tends to fluctuate throughout the year, with a clear upward trend evident in the fall months, peaking again in November at 3.5 m/s (8 mph). The consistent pattern of increasing wind speeds as summer transitions to autumn not only invigorates the landscape but also heralds the seasonal changes that define this coastal region of China.
Weather in Shanhaiguan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Shanhaiguan, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present starkly contrasting weather conditions. In September, temperatures range from a mild 13°C (55°F) at night to a warm average of 22°C (71°F), peaking at a high of 30°C (87°F). This month experiences a moderate amount of rainfall, totaling 66 mm (2.6 in) over about seven days, accompanied by a humidity level of 66%. In sharp contrast, January sees much colder temperatures, with lows plummeting to -21°C (-5°F) and an average of -5°C (24°F), only reaching a maximum of 7°C (44°F). Precipitation is minimal at just 3 mm (0.1 in) over the entire month, with no rainy days and lower humidity at 48%. For more detailed information, you can check Shanhaiguan weather in January.
The weather in September is significantly warmer compared to February, with average temperatures ranging from a mild 22°C (71°F) to a maximum of 30°C (87°F), while February experiences much colder conditions, averaging -3°C (28°F) and not exceeding 10°C (49°F). Additionally, September sees a higher level of humidity at 66% and more frequent rainfall, with about 66 mm (2.6 in) of precipitation over 7 days, compared to February's dry conditions, which only accumulate 8 mm (0.3 in) with rainfall on just 2 days. This stark contrast highlights the transition from late summer warmth in September to the frigid chill of winter in February. For a more detailed look at February weather specifics, check out Shanhaiguan weather in February.
September and March present distinct contrasts in weather, showcasing the transition from warm summer days to the lingering chill of late winter. In September, temperatures range from a minimum of 13°C (55°F) to a comfortable average of 22°C (71°F), peaking at a maximum of 30°C (87°F). This month also sees moderate precipitation, totaling 66 mm (2.6 in) over about 7 days, and a humidity level of 66%, creating a warm and somewhat muggy atmosphere. In stark contrast, March features much colder conditions, with temperatures dipping as low as -8°C (18°F), averaging just 4°C (39°F), and reaching a maximum of 17°C (63°F). Precipitation in March is lighter, with only 13 mm (0.5 in) over 3 days and lower humidity at 51%, contributing to a crisp and dry feel. For more details on March weather specifically, you can refer to Shanhaiguan weather in March.
When comparing the weather in September and April, distinct contrasts emerge. September boasts a milder climate with an average temperature of 22°C (71°F), ranging from a minimum of 13°C (55°F) to a maximum of 30°C (87°F). In contrast, April tends to be significantly cooler, with an average temperature of just 11°C (53°F) and nighttime lows dropping to -2°C (28°F).
Additionally, September experiences more rainfall, with 66 mm (2.6 in) spread over 7 days, whereas April sees considerably less precipitation at 27 mm (1.1 in) across only 3 days. Despite both months having similar humidity levels, September's higher temperatures make it feel more humid overall. For more detailed insights into April's conditions, visit Shanhaiguan weather in April.
In comparing the weather between September and May, September tends to be warmer overall, with average temperatures reaching 22°C (71°F) and a maximum of 30°C (87°F), while May has a lower average of 18°C (64°F) and a maximum of 28°C (83°F). Both months experience similar humidity levels at 66%, but September sees more precipitation, averaging 66 mm over about 7 days, compared to May's 39 mm over just 4 days. This makes September feel more humid and potentially rainier than the typically drier and cooler May days. For more detailed information on May’s weather, you can visit Shanhaiguan weather in May.
When comparing the weather in September and June, both months exhibit relatively mild average temperatures, with September ranging from a minimum of 13°C (55°F) to a maximum of 30°C (87°F) and June showing a slightly higher maximum of 33°C (91°F). Interestingly, while June's average temperature is just one degree higher at 22°C (72°F), it features a slightly higher minimum temperature of 14°C (57°F). Precipitation levels also differ; September receives 66 mm (2.6 in) across 7 days, whereas June experiences less rain with 53 mm (2.1 in) over 8 days. Additionally, humidity is marginally higher in June at 69% compared to September’s 66%. For more detailed insights, you can check Shanhaiguan weather in June.
When comparing the weather between July and September, notable differences emerge. In July, temperatures are warmer overall, with minimums around 20°C (68°F) and highs reaching 33°C (92°F), while September sees cooler temperatures, ranging from a minimum of 13°C (55°F) to a maximum of 30°C (87°F). Additionally, July experiences higher humidity levels at 82% compared to September's 66%, making it feel more muggy. Precipitation is also more frequent in July, with 144 mm (5.7 in) of rain over 11 days, while September has less rainfall at 66 mm (2.6 in) across 7 days. For more details on July's weather, you can visit Shanhaiguan weather in July.
In comparing the weather conditions of September and August, it is evident that September tends to be cooler and drier. The minimum temperature in September is 13°C (55°F), significantly lower than August’s 17°C (63°F), while the average temperature drops from 25°C (78°F) in August to 22°C (71°F) in September. Moreover, September experiences less precipitation, totaling 66 mm (2.6 in) over 7 days, compared to August's 235 mm (9.2 in) spread across 13 days. Additionally, with a humidity level of 66% in September versus 80% in August, September offers a more comfortable atmosphere. For additional insights, you can refer to Shanhaiguan weather in August.
September weather tends to be warmer and more humid than October, with average temperatures ranging from a minimum of 13°C (55°F) to a maximum of 30°C (87°F) and an overall average of 22°C (71°F). The month also sees more precipitation, totaling 66 mm (2.6 in) over about 7 days, and a humidity level of 66%. In contrast, October experiences cooler temperatures, with a minimum of 5°C (41°F), an average of 14°C (57°F), and a maximum of 26°C (79°F). This month is notably drier, with only 34 mm (1.3 in) of precipitation over just 3 days, and slightly higher humidity at 70%. For a closer look at the October weather specifics, you can visit Shanhaiguan weather in October.
In comparing the weather between September and November, it’s evident that the two months drastically differ. September boasts warmer temperatures, with averages around 22°C (71°F) and highs reaching up to 30°C (87°F), making it a comfortable month for outdoor activities. However, it does experience more precipitation, with 66 mm (2.6 in) over about 7 days, accompanied by a humidity level of 66%. In contrast, November brings a significant drop in temperature, with average highs of only 6°C (43°F) and lows dipping down to -6°C (21°F). The month is much drier, with only 19 mm (0.8 in) of rain falling over just 2 days, although humidity remains relatively high at 69%. For more details on November weather in this region, you can check Shanhaiguan weather in November.
September and December exhibit striking differences in weather patterns. In September, temperatures range from a mild 13°C (55°F) at night to a warm 30°C (87°F) during the day, with an average of 22°C (71°F). The month sees about 66 mm (2.6 in) of precipitation over approximately 7 days, accompanied by a humidity level of 66%. Conversely, December brings a significant drop in temperature, with lows plunging to -16°C (4°F) and a daytime maximum of just 9°C (49°F), averaging -2°C (28°F). Precipitation is minimal in December, totaling only 4 mm (0.2 in) over just 1 day and exhibiting lower humidity at 55%. For more details on December weather, you can visit Shanhaiguan weather in December.
September in Shanhaiguan marks a delightful transition as the summer warmth begins to fade, offering a refreshing blend of mild temperatures and occasional rainfall. With an average temperature around 22°C (71°F), the days are still pleasantly warm, while the nights become cooler, creating a comfortable environment for outdoor activities. Compared to the sweltering summer months, September sees a notable drop in humidity, making it a more pleasant time to explore the area's stunning landscapes. The extra rainfall, with about 66 mm (2.6 in) over the month, nourishes the region, enhancing its lush beauty. For those looking to plan their visit, September is an ideal time to experience the unique climate of this historic locale. For further details, check out Shanhaiguan Climate.