September Weather in Wenchang, China

Last updated: August 21, 2025

In Wenchang, China, September ushers in warm temperatures, with daytime highs reaching a maximum of 34°C (94°F) and an average temperature of 28°C (83°F). Nights are mild, with lows around 24°C (75°F), creating a comfortably warm environment. However, this month is also marked by significant precipitation, totaling 189 mm (7.4 in) over approximately 22 days, leading to a notably humid atmosphere with humidity levels averaging 82%. Visitors should prepare for a combination of warmth and rain, making it essential to plan activities accordingly.

September Temperature in Wenchang

In September, Wenchang experiences a warm transition from summer to autumn, with temperatures typically ranging from a minimum of 24°C (75°F) to a maximum of 34°C (94°F). The average temperature hovers around 28°C (83°F), creating a pleasantly warm atmosphere that's ideal for outdoor activities. As the month progresses, there's a subtle yet noticeable dip in temperatures compared to the sizzling summer months, particularly July and August, which feature higher averages and maxima. This shift not only signals the onset of cooler days ahead but also invites locals and visitors to enjoy the lingering warmth before the autumn chill sets in.

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

The chart illustrates September temperature patterns in Wenchang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wenchang, 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).
JanFebMarAprMayJunJulAugSepOctNovDec696975788385858483797670
Data source: Temperature data for Wenchang 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 Wenchang

September in Wenchang, China, is a month of substantial rainfall, with 189 mm (7.4 in) of precipitation recorded over 22 days. Following the intense downpours of August, which saw a peak of 251 mm (9.9 in) across 25 days, September maintains a robust level of rainfall but marks a noticeable decline. This transition from summer’s heavy monsoonal influence reflects the gradual shift towards drier months, as October typically experiences an uptick to 210 mm (8.3 in). The rainy days in September are also significant, creating a lush ambiance as the region prepares for the cooler months ahead. Overall, September bridges the gap between the peak rainy season and the tapering off of monsoon effects, setting the stage for a beautiful autumn.

September Precipitation Trends in Wenchang

The chart displays monthly precipitation patterns in Wenchang, 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 Wenchang, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec3140481241381512002511892106149
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Wenchang

In September, Wenchang, China, experiences a drop in humidity to 82%, signaling a transition from the sweltering summer months. Following the peak of 87% in July and the slight decrease to 86% in August, September's humidity remains relatively high, yet it indicates the beginning of a gradual cooldown as the region heads into autumn. Throughout the year, humidity levels in Wenchang tend to rise steadily from January's 74%, peaking during the summer months, before tapering off as the seasons change. This trend highlights a pattern of elevated humidity that characterizes the coastal climate, with September providing a brief respite as the heat begins to wane.

September Average Humidity in Wenchang

This chart illustrates the average monthly humidity levels in Wenchang, 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 Wenchang is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%75%79%80%81%82%87%86%82%82%80%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Wenchang

In September, Wenchang, China, experiences a UV Index of 13, placing it in the extreme exposure category with a burn time of just 10 minutes. This month maintains the intensity seen in the summer, showcasing the region's sustained exposure to strong UV radiation. Notably, the UV Index remains consistent throughout the late summer and early autumn months, with May to September all registering indices of 13 or higher. As the climate transitions, it's essential for residents and visitors alike to stay vigilant about sun protection during these peak UV periods. For more detailed information, visit Wenchang UV Index.

Maximum UV Index Levels in Wenchang for September

The chart shows the monthly maximum UV Index (UVI) for Wenchang 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 Wenchang typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314131413131298
Data source: Wenchang 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 Wenchang

September in Wenchang, China, marks the transition into autumn while still embracing the warmth of summer, as evidenced by the 301 hours of sunshine. This month continues the pattern of abundant daylight, following a high point in July with 330 hours and a close neighbor in May boasting 322 hours. As the year progresses, sunshine gradually begins to wane, dropping to 285 hours in October and further declining through the cooler months. However, September's robust sunlit days serve as a delightful bridge, reminding residents of the sunny heights of summer before autumn takes its gentle hold. The overall trend highlights Wenchang's vibrant climate, particularly during the late spring and summer, providing ample opportunities to enjoy outdoor activities and bask in the sun's warmth.

Monthly Sunshine Duration in Wenchang: September Highlighted

The September sunshine duration represents the total number of hours Wenchang 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.
JanFebMarAprMayJunJulAugSepOctNovDec199h259h299h294h322h312h330h304h301h285h256h228h
Data source: Wenchang September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Wenchang During September

In Wenchang, China, the likelihood of sunny weather experiences notable fluctuations throughout the year. September stands at a 35% chance of sunshine, slightly below the average for earlier months but a bit more optimistic than the depths of summer when the probability drops to 16% in June. As the year progresses, the sun seems to reassert itself, with November offering a brighter 43%, signaling a gradual return to sunnier days. Despite September's moderate chances, it's evident that this month is caught between the fading summer heat and the onset of autumn, making it a transitional time for sunshine lovers.

Percentage of Sunny Days in September in Wenchang

The chart illustrates the percentage of sunny days in Wenchang 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 Wenchang experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec39%58%47%48%47%16%32%22%35%20%43%31%
Data source: Wenchang September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Wenchang in September

As September rolls into Wenchang, China, the region enjoys a delightful 12 hours of daylight, continuing a trend established in the warmer months. Following a peak of 13 hours during the summer, daylight begins to gracefully taper off, hinting at the approaching autumn. This month marks a smooth transition as the days blend into the cooler seasons, staying consistent with the daylight duration observed in April and August. As daylight diminishes slightly through October, it sets the stage for the shorter days of winter, allowing residents and visitors alike to savor the warm hues of the early autumn sun before the days grow shorter and the evenings longer.

Average Daylight Hours in Wenchang for September

The chart illustrates the variation in daylight duration in Wenchang throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 4m11h 29m12h 1m12h 35m13h 2m13h 16m13h 9m12h 45m12h 13m11h 40m11h 11m10h 57m
Data source: Wenchang daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Wenchang

As summer transitions to autumn in Wenchang, China, September brings the year’s lowest average wind speed at just 2.8 m/s (6 mph). This gentle breeze marks a noticeable shift from the more vigorous winds experienced in the preceding months, with May peaking at 4.8 m/s (11 mph). Following the rhythmic patterns of nature, the wind picks up again in October, reaching 5.2 m/s (12 mph), signaling a return to more active weather conditions. Overall, September serves as a tranquil prelude to the stronger gusts of fall, embodying a serene moment in the dynamic coastal climate of Wenchang.

Average September Wind Speed in Wenchang

The chart displays monthly wind speed patterns in Wenchang, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.23.34.13.64.84.33.03.62.8 m/s5.24.45.1
Data source: Wenchang September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Wenchang Compares to Other Months

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

September and January present stark contrasts in weather conditions. In September, temperatures range from a warm minimum of 24°C (75°F) to a peak of 34°C (94°F), accompanied by high humidity at 82%. This month also sees substantial rainfall, accumulating 189 mm (7.4 in) over 22 days. In contrast, January offers a cooler climate with temperatures dipping to a minimum of 10°C (50°F) and a maximum of 28°C (83°F), making for a more temperate experience. Rainfall is significantly lighter in January, with only 31 mm (1.2 in) over just 10 days, and humidity decreases to 74%. For more information about January weather, you can visit Wenchang weather in January.

September and February showcase contrasting weather patterns. In September, temperatures soar with a minimum of 24°C (75°F) and an average of 28°C (83°F), peaking at 34°C (94°F). The humidity is high at 82%, accompanied by significant rainfall totaling 189 mm (7.4 in) over 22 days. In contrast, February experiences much cooler temperatures, ranging from a minimum of 11°C (51°F) to an average of 21°C (69°F) and a maximum of 30°C (86°F). Precipitation drops significantly to 39 mm (1.6 in) over 11 days, and the humidity decreases to 75%. For more detailed insights about February weather, you can visit Wenchang weather in February.

In September, the weather is notably warmer, with average temperatures reaching around 28°C (83°F) and peak highs of 34°C (94°F), accompanied by significant precipitation of 189 mm (7.4 in) spread over 22 days, leading to high humidity levels of 82%. In contrast, March offers a milder climate, with average temperatures dropping to 24°C (75°F) and maximums of 32°C (89°F). Precipitation is significantly lower at 48 mm (1.9 in) across just 11 days, while humidity is slightly less at 78%. For more detailed insights, check out Wenchang weather in March.

In September, the weather is characterized by warmer temperatures, with minimums around 24°C (75°F) and averages reaching 28°C (83°F), peaking at a maximum of 34°C (94°F). This month experiences significant rainfall, totaling 189 mm (7.4 in) over approximately 22 days, along with high humidity at 82%.

In contrast, April tends to be milder with a minimum temperature of 17°C (62°F), an average of 26°C (78°F), and maximums of up to 33°C (91°F). Precipitation is less frequent, accumulating to 124 mm (4.9 in) over about 14 days, and humidity is slightly lower at 80%. For more detailed information, you can visit Wenchang weather in April.

September and May have similarities in their average temperatures, both hovering around 28°C (83°F). However, September tends to be slightly hotter, with maximum temperatures reaching up to 34°C (94°F), whereas May can peak at 36°C (97°F). In terms of precipitation, September experiences more rainfall, totaling 189 mm (7.4 inches) over 22 days compared to May's 138 mm (5.4 inches) over 17 days. Humidity levels are quite comparable, with September at 82% and May at 81%. For a detailed look at May weather, you can visit Wenchang weather in May.

In September, temperatures are slightly milder, with a minimum of 24°C (75°F) and an average of 28°C (83°F), compared to June, which has a minimum of 25°C (77°F) and an average of 30°C (85°F). The peak temperatures in September reach 34°C (94°F), while June sees more intense heat with maximums of 37°C (99°F). Additionally, September experiences significantly more rainfall, with 189 mm (7.4 in) of precipitation spread over 22 days, in contrast to June's 151 mm (5.9 in) over 16 days. Despite the difference in rainfall, both months share high humidity levels, with September at 82% and June at 81%. For more detailed information, you can check Wenchang weather in June.

When comparing the weather in September and July, both months exhibit warm temperatures, although September tends to be slightly cooler. In September, the minimum temperature is 24°C (75°F), with an average of 28°C (83°F) and a maximum of 34°C (94°F). In contrast, July has a slightly higher minimum temperature of 25°C (78°F), an average of 29°C (85°F), and a maximum of 35°C (96°F). Precipitation levels are similar, with September receiving 189 mm (7.4 in) over 22 days, while July experiences 200 mm (7.9 in) over 18 days. Additionally, July has a higher humidity level at 87%, compared to September's 82%. For more detailed insights, you can check Wenchang weather in July.

In September, the weather begins to cool slightly compared to August, with minimum temperatures dropping to 24°C (75°F) and maximums reaching 34°C (94°F), whereas August had a minimum of 25°C (77°F) and a peak of 36°C (97°F). Overall, September's average temperature is a bit lower at 28°C (83°F), compared to August's average of 29°C (84°F). Additionally, September experiences significant rainfall of 189 mm (7.4 in) over 22 days, while August is wetter with 251 mm (9.9 in) across 25 days. The humidity is slightly lower in September at 82%, down from August's 86%. For more detailed information, you can check Wenchang weather in August.

In September, the weather is marked by warmer temperatures, with a minimum of 24°C (75°F) and an average of 28°C (83°F), while October sees a slight drop in temperature, with a minimum of 20°C (69°F) and an average of 26°C (80°F). Both months experience high humidity levels, but September holds steady at 82%, while October is just a bit lower at 81%. In terms of rainfall, October has a slightly higher precipitation total of 210 mm (8.3 in) over 19 days compared to September's 189 mm (7.4 in) across 22 days. To learn more about the weather specific to October, you can visit Wenchang weather in October.

In September, the weather is notably warmer with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 34°C (94°F), while the humidity remains high at 82%. This month also experiences significant rainfall, with 189 mm (7.4 in) of precipitation over 22 days, making it one of the wetter months. In contrast, November brings a noticeable drop in temperatures, with averages between 18°C (65°F) and 30°C (85°F) and reduced humidity at 80%. Precipitation in November is also markedly lower, with only 61 mm (2.4 in) over 12 days. For a detailed look at November's weather patterns, you can visit Wenchang weather in November.

In September, the weather is characterized by warmer temperatures, with a minimum of 24°C (75°F) and an average of 28°C (83°F), peaking at 34°C (94°F). This month experiences significant rainfall, totaling 189 mm (7.4 in) over 22 days, coupled with high humidity levels of 82%. In contrast, December brings much cooler temperatures, with a minimum of 14°C (58°F) and an average of 21°C (71°F), reaching a maximum of 28°C (82°F). Precipitation decreases considerably to 49 mm (1.9 in) over just 8 days, and humidity slightly drops to 79%. For a detailed look at what to expect, check out Wenchang weather in December.

Compare Wenchang's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Wenchang

September in Wenchang brings a noticeable transition in weather, characterized by its warm temperatures and high humidity levels that create a tropical atmosphere. While the month enjoys an average temperature that remains comfortably warm, it also experiences significant precipitation, with rain occurring on nearly three-quarters of the days. This leads to a lush, green landscape, contrasting sharply with the drier months preceding it. As September unfolds, the combination of heat and humidity offers a unique blend different from the rest of the year, making it a month where tropical showers are as common as sunny spells. For a comprehensive overview of the year-round climate, visit Wenchang Climate.