Last updated: August 21, 2025
In September, the weather in Nanhai, China, showcases a vibrant spectrum of temperatures, with a maximum of 36°C (97°F) and dropping to a minimum of 16°C (61°F), averaging around 25°C (77°F). This month is characterized by a humidity level of approximately 70%, enhancing the tropical atmosphere. Residents can expect 100 mm (3.9 in) of rainfall spread over 11 days, marking it as a transitional time in the region's climate. Whether basking in the warm sun or experiencing brief tropical showers, September in Nanhai offers a unique blend of hot summer days and refreshing rain.
In September, Nanhai, China, experiences a gentle transition into autumn, characterized by pleasant temperatures that make it an ideal time to explore the region. With a minimum temperature of 16°C (61°F) and an average of 25°C (77°F), the weather is increasingly mild compared to the sweltering heights of summer. The maximum temperature can still reach up to 36°C (97°F), allowing for warm days that are perfect for outdoor activities. This month marks a noticeable drop in daily temperatures compared to the peak summer months, while still retaining a touch of warmth, providing a comfortable and inviting climate for visitors and locals alike. As the days gradually shorten, the crispness of autumn begins to set in, making September a season of transition and vibrant change in Nanhai.
In September, Nanhai experiences a notable shift in precipitation, with an average rainfall of 100 mm (3.9 in) over approximately 11 days. This marks a decrease compared to the preceding months of July and August, which are the wettest periods of the year, boasting 182 mm (7.2 in) and 166 mm (6.5 in) respectively. Nonetheless, September still retains a significant amount of rainfall, contributing to the region's lush vegetation and humid climate. As autumn approaches, the sporadic showers serve as a transitional phase towards the drier months ahead, characterized by a gradual decline in both rainfall volume and frequency.
September in Nanhai, China, marks a notable shift in humidity levels, as the average drops to 70%, the lowest in the year. Following a summer filled with heightened moisture—from July’s 88%, showcasing the peak of the humid season—the transition into autumn brings a refreshing decline. This decrease indicates a gradual shift towards drier conditions, continuing slightly through October with a rise back to 77%. In contrast, the preceding months of late spring and summer maintain a consistent range between 82% and 88%, highlighting Nanhai’s typical high humidity, which tends to characterize its warmest seasons. As the year progresses, humidity levels stabilize in the fall, fostering a more comfortable atmosphere for the region's residents.
In September, Nanhai experiences a UV Index of 10, placing it in the very high exposure category, with a burn time of just 15 minutes. This trend of elevated UV levels reflects the region's transition from the extreme conditions of summer, where July peaked at 12, to slightly less intense yet still significant levels in the early autumn. Comparatively, as summer wanes, September maintains a strong sunlight intensity, underscoring the importance of sun protection during this time. As daylight grows softer in October, the UV Index will gradually diminish to 9, but for now, residents and visitors should remain vigilant. For more detailed insights, check the Nanhai UV Index.
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September in Nanhai, China, offers a delightful balance of sunshine, with 250 hours of radiant light illuminating the transition from summer to autumn. This month, while cooler than the sun-drenched heights of August at 306 hours, still boasts a generous amount of sunlight that captures the brilliance of early fall. The trend of increasing sunshine hours peaks in the summer months, particularly in July and August, before gracefully tapering off in September and continuing downward into the cooler months of October and November. This gradual decline suggests a shift in the seasons, inviting residents and visitors alike to embrace the warmth of early autumn's brightness while enjoying outdoor activities bathed in the gentler autumn sun.
As September rolls in, Nanhai, China, experiences a notable uptick in sunny weather, with a 55% chance of sunshine gracing the skies. This marks a significant departure from the wet months of summer—July and August—when the likelihood of sun hovers around the mid to low 20s. Interestingly, September's sunny prospects are on par with the peak levels seen in January and December, suggesting that as the year transitions towards autumn, residents can look forward to brighter days ahead. Such a trend not only enhances outdoor activities but also implies a refreshing change from the prior humid spell, making September a delightful time to bask in the sun.
As September arrives in Nanhai, China, daylight begins to transition from the long, sun-drenched days of summer to the cooler, shorter days of fall. With approximately 12 hours of daylight, September marks a slight decrease from the peak of 14 hours in June, illustrating the gradual shortening of days as autumn approaches. This month sits comfortably between the extended sunlight of summer, where the days linger at 13 hours in both July and August, and the crisp, shorter days of October. As nature prepares for the cooler months ahead, September serves as a gentle reminder of the seasonal shift, allowing residents to savor the lingering warmth before the daylight diminishes further.
As September rolls in Nanhai, a gentle shift in the air can be felt with an average wind speed of 2.4 m/s (5 mph), slightly breezier than the preceding summer months. This subtle uptick reflects the transition toward autumn, where winds start to pick up ever so gradually. Throughout the summer, wind speeds hovered around 2.3 m/s, but as October approaches, a notable increase to 3.3 m/s (7 mph) is on the horizon, signifying a refreshing change. This gradual rise in wind speeds not only enhances the coastal charm of Nanhai but also heralds a new season, inviting both residents and visitors to embrace the invigorating elements of fall.
Weather in Nanhai varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Nanhai, 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 16°C (61°F) to a scorching 36°C (97°F), with an average of 25°C (77°F), creating a warm and often humid atmosphere with 70% humidity and 100 mm (3.9 in) of precipitation over 11 days. In contrast, January experiences much cooler weather, where temperatures dip as low as -4°C (24°F) and reach a maximum of 20°C (68°F), with a much lower average of 5°C (41°F). Precipitation in January totals 42 mm (1.6 in) over just 6 days, accompanied by a slightly higher humidity level of 74%. For a more detailed look at January weather, you can check out Nanhai weather in January.
September and February showcase dramatically contrasting weather patterns. September experiences warmer temperatures, with a minimum of 16°C (61°F) and highs reaching up to 36°C (97°F), accompanied by significant humidity at 70%. This month also sees about 100 mm of precipitation spread over 11 days, indicating a wet and warm late summer. In contrast, February is much cooler, with temperatures dipping to a minimum of -4°C (25°F) and averaging around 7°C (46°F), peaking at 27°C (81°F). Although February has less overall rainfall, at 43 mm over 9 days, humidity remains relatively high at 77%. For more details on February's climate, visit Nanhai weather in February.
In September, temperatures are significantly warmer, ranging from a minimum of 16°C (61°F) to a high of 36°C (97°F), with an average of 25°C (77°F). The month experiences about 100 mm (3.9 in) of precipitation spread across 11 days, accompanied by a humidity level of 70%. In contrast, March sees much cooler temperatures, with lows of 3°C (37°F) and highs reaching 29°C (85°F), averaging at 13°C (56°F). This month has slightly less precipitation at 91 mm (3.6 in) over 12 days, alongside a higher humidity of 87%. For more specific details about March weather, check out Nanhai weather in March.
When comparing the weather in September and April, notable differences emerge. September typically enjoys warmer average temperatures, with lows around 16°C (61°F) and highs reaching up to 36°C (97°F). In contrast, April is cooler, averaging 18°C (64°F), with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 33°C (91°F). Precipitation is slightly higher in April, averaging 120 mm (4.7 in) over about 12 days, compared to September’s 100 mm (3.9 in) over 11 days. Additionally, April tends to be more humid, with a humidity level of 85%, whereas September's humidity is around 70%. For more detailed insights on the weather in April, you can visit Nanhai weather in April.
When comparing the weather in September and May, both months experience similar maximum temperatures, reaching up to 36°C (97°F). However, September presents a warmer average temperature of 25°C (77°F) compared to May's cooler 22°C (72°F). In terms of precipitation, May is significantly wetter, receiving 176 mm (6.9 in) over 13 days, while September sees 100 mm (3.9 in) over 11 days. The humidity is also higher in May at 82%, compared to 70% in September, contributing to a more muggy atmosphere during spring. For a closer look at conditions in May, you can check Nanhai weather in May.
In comparing the weather of September and June, both months experience similar high temperatures, with maximums reaching up to 36°C (97°F). However, September typically shows a slightly lower average temperature at 25°C (77°F) compared to June's 26°C (79°F). Rainfall is more prevalent in June, with precipitation totaling 215 mm (8.5 in) over 14 days, whereas September sees only 100 mm (3.9 in) spread over 11 days. Additionally, humidity levels are higher in June at 84%, compared to September's 70%. For more details, check out Nanhai weather in June.
In comparing the weather of September and July, September generally experiences milder temperatures with a minimum of 16°C (61°F) and an average of 25°C (77°F), while July tends to be hotter, boasting a minimum of 21°C (70°F) and an average of 28°C (83°F). The maximum temperatures also peak higher in July at 38°C (101°F) compared to September's maximum of 36°C (97°F). Additionally, September sees less precipitation with 100 mm (3.9 in) over 11 days, as opposed to July's 182 mm (7.2 in) over 16 days. The humidity in July is notably higher at 88%, in contrast to September's 70%. For more detailed information, you can refer to Nanhai weather in July.
In comparing the weather of September and August, September tends to be slightly cooler and less humid. The minimum temperature in September is 16°C (61°F), while in August, it is warmer at 19°C (67°F). The average temperature in September is 25°C (77°F), compared to a higher average of 29°C (84°F) in August. Additionally, September experiences less precipitation, totaling 100 mm (3.9 in) over 11 days, whereas August sees significantly more rainfall with 166 mm (6.5 in) over 16 days. The humidity also drops in September to around 70%, down from 84% in August. For more detailed weather information, you can refer to Nanhai weather in August.
September and October show a notable shift in weather characteristics. September tends to be warmer, with average temperatures reaching 25°C (77°F) and maximum highs of 36°C (97°F), while October sees a decrease in average temperature to 18°C (65°F), along with a cooler minimum of 10°C (50°F). Precipitation levels are also affected; September experiences more rain with 100 mm (3.9 in) over 11 days, compared to October's 71 mm (2.8 in) over 9 days. Additionally, October has a slightly higher humidity level at 77%, compared to September's 70%. For more detailed weather information, visit Nanhai weather in October.
September presents a warm and humid atmosphere, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 36°C (97°F), averaging around 25°C (77°F). The month also experiences considerable rainfall, with about 100 mm (3.9 in) spread over 11 days, and humidity levels hovering around 70%. In contrast, November ushers in a cooler climate, with temperatures dropping to a minimum of 3°C (38°F) and averaging 13°C (56°F), with a maximum of 27°C (81°F). Rainfall is less frequent in November, totaling only 45 mm (1.8 in) over 8 days, and humidity increases to 84%, making the air feel quite crisp. For more detailed information, you can visit Nanhai weather in November.
September and December exhibit striking contrasts in weather. In September, temperatures range from a minimum of 16°C (61°F) to a scorching maximum of 36°C (97°F), with an average of 25°C (77°F). This month also sees a substantial amount of rainfall, totaling 100 mm (3.9 in) over 11 days, combined with a humidity level of 70%. In contrast, December experiences much cooler temperatures, with a minimum of -3°C (28°F) and an average temperature of just 7°C (45°F), peaking at 19°C (67°F). Precipitation drops significantly to 25 mm (1.0 in) over only 6 days, while humidity increases to 80%. For more information on December conditions in this region, check out Nanhai weather in December.
September in Nanhai ushers in a transitional phase where temperatures peak at a sultry 36°C, yet the average settles to a more comfortable 25°C, making it a month where summer's grip begins to loosen. Characterized by persistent humidity levels around 70%, the weather is notably more humid compared to the dry winds of winter. While rainfall totals 100 mm over approximately 11 days, this precipitation is crucial for nourishing the landscape, distinguishing September from the drier months that precede it. Overall, the month strikes a dynamic balance between lingering warmth and refreshing showers, inviting both residents and visitors to experience the lush vibrancy of early autumn. For a deeper dive into regional weather trends, explore Nanhai Climate.