Last updated: August 21, 2025
In Haitang, China, September experiences a warm climate with maximum temperatures reaching up to 37°C (99°F) and an average of 24°C (75°F), providing an inviting environment for visitors. While the nights cool down to a minimum of 16°C (61°F), the high humidity levels at 86% can create a humid feel throughout the month. Rainfall is significant, with a total of 192 mm (7.5 in) spread across 16 days, making it a good idea to plan for occasional showers. Overall, September in Haitang is characterized by a blend of warm temperatures and moisture, perfect for those who enjoy a tropical atmosphere.
In September, Haitang, China, experiences a delightful transition as summer gives way to early autumn. With temperatures ranging from a minimum of 16°C (61°F) to a maximum of 37°C (99°F), the month strikes a balance between warmth and comfort. The average temperature hovers around 24°C (75°F), offering a pleasant climate for outdoor activities and exploration. This period marks a notable decline from the sweltering heat of July and August, where highs peak at around 39°C (102°F). As the month progresses, residents and visitors alike can enjoy the gradual cooling, making September an inviting time to experience the beauty of Haitang’s landscapes without the oppressive summer heat.
September in Haitang, China, is characterized by significant rainfall, accumulating 192 mm (7.5 in) over approximately 16 days of precipitation. This month experiences a notable decrease from the heavy rains of July but remains robust, firmly placing it among the top months for rainfall. Following closely behind the peak summer months, September’s precipitation is indicative of the lingering influence of the monsoon season, setting the stage for a gradual transition into the drier fall months. The combination of moderate rainfall and relatively moist days illustrates a vibrant atmosphere, as the region continues to experience lush greenery, making it a dynamic time in Haitang.
In Haitang, China, September marks a continuation of the summer's lush humidity, with levels reaching around 86%. This is slightly lower than the peak of 87% seen in August but remains consistent with the humidity experienced in October. The transition from the sweltering summer months reflects a minor easing, yet the air still clings with moisture, indicative of the region's tropical climate. Following the pattern from earlier months, humidity has steadily increased since January's relatively dry 78%, peaking in the summer, and hints at a gradual approach towards the cooler, yet still humid, late autumn months ahead.
In September, Haitang experiences an UV Index of 11, placing it in the extreme exposure category, where the burn time reduces to just 10 minutes. This trend highlights a continuing pattern from the summer months, where the UV Index remained at a peak of 12 in July and August. As the season transitions into fall, the UV Index begins to decline, but September still demands caution for sun exposure. Whether enjoying the outdoors or relaxing under the sun, it's crucial to protect your skin during this time. For more detailed information on UV levels throughout the year, check out the full guide at Haitang UV Index.
UV Risk Categories
September in Haitang, China, offers a delightful transition from the sun-drenched height of summer to the cooler embrace of autumn. With 217 hours of glorious sunshine, this month still captures the vibrant essence of summer, though it marks a notable decline from the peak of 317 hours in August. The trend shows a gradual increase in sunlight from January's 117 hours to a crescendo in July, only to recede as the year wanes. As autumn approaches, the sunshine gradually softens, yet September retains a charm that is perfect for outdoor explorations, making it a fantastic time to enjoy the natural beauty before winter sets in.
In September, Haitang, China, enjoys a 34% chance of sunny weather, marking a slight uptick compared to the summer months. This increase suggests a transition towards clearer skies as the region moves from the more humid summer to the early autumn season. Interestingly, September’s sun probability is among the highest recorded throughout the year, trailing only behind January's 33%. As the temperatures start to cool and the rain begins to subside, residents and visitors alike can look forward to more abundant sunshine, making it an ideal time for outdoor activities and exploration. Overall, September presents a promising opportunity for enjoying the outdoors amid improving weather conditions.
As the calendar turns to September, Haitang, China, experiences a gentle transition in daylight duration, offering 12 hours of sunlight. This month marks a subtle shift from the longer days of summer, where June peaked with a full 14 hours of daylight. Following the warm embrace of July and August, which each boasted 13 hours, September signals the onset of autumn, ushering in shorter days yet still generous compared to the winter months ahead. This gradual decline in daylight, mirrored in the subsequent months, sets the stage for a cozy retreat indoors as nature begins to prepare for the cooler season.
In Haitang, China, the winds of September offer a refreshing change, as average wind speeds pick up to 1.7 m/s (4 mph), a notable increase from the more languid months preceding it. While the winds in the earlier months of the year tend to hover around a gentle 1.3 m/s (3 mph), September signals a shift, hinting at the subtle transition of seasons. After a summer of mild breezes, this uptick invites a sense of renewal and anticipation for autumn's arrival. As October approaches, the winds are expected to mellow again, drifting back to a leisurely pace, but for now, September's breezes bring a delightful briskness, invigorating both the landscape and the spirits of those who wander through it.
Weather in Haitang varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Haitang, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January offer starkly contrasting weather conditions. In September, temperatures range from a mild 16°C (61°F) at night to a scorching 37°C (99°F) during the day, accompanied by high humidity levels of 86%. The month also sees significant rainfall, with 192 mm (7.5 in) falling over 16 days, creating a lush and vibrant atmosphere. In contrast, January brings much cooler temperatures, where the minimum drops to -1°C (30°F) and the maximum reaches only 16°C (61°F). Precipitation is notably lower at 36 mm (1.4 in) over just 8 days, with a more comfortable humidity level of 78%. For those interested in more detailed information about January weather patterns in Haitang, you can check out Haitang weather in January.
In September, the weather is significantly warmer, with average temperatures reaching 24°C (75°F) and highs soaring up to 37°C (99°F), accompanied by high humidity levels of 86%. This month also sees substantial rainfall, with 192 mm (7.5 in) over 16 days, creating a humid and wet atmosphere. In stark contrast, February experiences much cooler conditions, with average temperatures around 9°C (49°F) and maximums reaching 25°C (78°F). Precipitation is considerably lower in February, totaling only 58 mm (2.3 in) over 9 days, and the humidity is slightly less at 80%. For more details, you can check Haitang weather in February.
September typically showcases warmer weather compared to March, with average temperatures reaching around 24°C (75°F) and maximums soaring up to 37°C (99°F). In contrast, March has a much cooler average temperature of 14°C (58°F), with highs peaking at 31°C (88°F) and lows dropping to 5°C (41°F). While both months experience significant rainfall, September sees more precipitation at 192 mm (7.5 in) over 16 days, compared to March’s 110 mm (4.3 in) across 15 days. Humidity levels are quite similar, hovering around 85-86%. For more detailed information on March weather, you can visit Haitang weather in March.
September and April present contrasting weather patterns. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 37°C (99°F), with an average of 24°C (75°F). This month experiences significant rainfall, totaling 192 mm (7.5 in) over 16 days, accompanied by high humidity of 86%. In comparison, April has milder temperatures with a minimum of 9°C (48°F) and a maximum of 34°C (93°F), averaging 18°C (65°F). It also sees less precipitation, at 163 mm (6.4 in) over 15 days, and slightly lower humidity of 81%. For more detailed information, you can explore Haitang weather in April.
In September, temperatures generally range from a minimum of 16°C (61°F) to a maximum of 37°C (99°F), with an average of 24°C (75°F). This month experiences a high level of humidity at 86% and substantial rainfall, totaling 192 mm (7.5 in) over about 16 days. In contrast, May offers slightly cooler temperatures, with minimums around 12°C (53°F) and maximums reaching 35°C (95°F). The average temperature in May is lower at 22°C (71°F), accompanied by similar precipitation levels of 196 mm (7.7 in) spread over 17 days and a slightly lower humidity of 83%. For a more detailed view of the weather in May, please check Haitang weather in May.
In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 37°C (99°F), with an average of 24°C (75°F). This month is characterized by higher precipitation levels, totaling 192 mm (7.5 in) over 16 rainy days, and a humidity of 86%. In contrast, June features a slightly cooler average temperature of 25°C (77°F) with maximums reaching 35°C (96°F) and a similar minimum of 16°C (60°F). June experiences a bit less rainfall, accumulating 176 mm (6.9 in) over 17 days and maintaining a humidity of 85%. For more details on June weather, you can visit Haitang weather in June.
In comparison to July, September generally experiences slightly cooler temperatures, with a minimum of 16°C (61°F) and an average of 24°C (75°F) compared to July's minimum of 20°C (69°F) and average of 28°C (83°F). However, September's maximum temperature can reach up to 37°C (99°F), while July can peak at 39°C (102°F). Both months see substantial precipitation, with September receiving 192 mm (7.5 in) over 16 days and July slightly higher at 213 mm (8.4 in) across 15 days. Interestingly, humidity remains constant at 86% for both months, creating a similarly muggy atmosphere. For more detailed information, check out Haitang weather in July.
In comparing the weather of September to August, September shows a noticeable decrease in average temperature, dropping from an average of 29°C (85°F) in August to 24°C (75°F). Additionally, September experiences a wider range of temperatures, with a minimum of 16°C (61°F) and a maximum of 37°C (99°F), compared to August's minimum of 19°C (67°F) and maximum of 39°C (103°F). Although August has less precipitation at 134 mm (5.3 in) over 13 days, September records significantly higher precipitation at 192 mm (7.5 in) over 16 days, indicating a wetter month. Both months have similar humidity levels, with September at 86% and August slightly higher at 87%. For a more detailed look at August's climate, you can visit Haitang weather in August.
September and October showcase a notable shift in weather patterns. September remains warm with average temperatures peaking at 24°C (75°F) and maximums reaching up to 37°C (99°F). However, it also brings considerable rainfall, totaling 192 mm (7.5 in) over 16 days, accompanied by high humidity levels of 86%. In contrast, October sees a drop in temperatures, with averages around 18°C (65°F), maxing out at 34°C (94°F) and a minimum of 10°C (50°F). Although rainfall decreases to 141 mm (5.5 in) over 17 days, the humidity remains constant at 86%. For more details on the weather specifics during October, you can visit Haitang weather in October.
September and November present contrasting weather patterns, reflecting the transition between summer and autumn. In September, temperatures range from a minimum of 16°C (61°F) to a scorching maximum of 37°C (99°F), with an average of 24°C (75°F). This month also sees significant rainfall, accumulating to 192 mm (7.5 in) over 16 rainy days, accompanied by high humidity at 86%. In contrast, November experiences a marked drop in temperatures, with a minimum of 4°C (39°F) and a more moderate maximum of 24°C (76°F), resulting in an average of just 13°C (56°F). Precipitation decreases significantly to 70 mm (2.8 in) over 10 days, and humidity remains relatively steady at 87%. For a more detailed overview, you can check Haitang weather in November.
September and December exhibit strikingly different weather patterns. In September, temperatures range from a minimum of 16°C (61°F) to a sweltering maximum of 37°C (99°F), with an average temperature of 24°C (75°F). This month is characterized by high humidity at 86% and significant rainfall, accumulating to 192 mm (7.5 in) over 16 days. In contrast, December sees a drastic drop in temperatures, with minima around 0°C (32°F) and a maximum of 18°C (64°F), averaging only 9°C (48°F). Additionally, rainfall is considerably less in December, with only 33 mm (1.3 in) recorded over 8 days and humidity remaining relatively constant at 85%. For more details on December weather, you can refer to Haitang weather in December.
As September arrives in Haitang, the weather begins to transition, showcasing a delightful blend of warmth and moisture. With average temperatures hovering around a mild 24°C (75°F), this month stands out compared to the extreme highs and lows experienced in summer and winter. While the maximum temperature may still reach up to a steamy 37°C (99°F), the increasing humidity at 86% creates a pleasantly lush atmosphere. However, residents and visitors should prepare for the 16 rainy days, as frequent precipitation of 192 mm (7.5 in) transforms the landscape into a vibrant tapestry of greenery. Overall, September offers a unique chance to enjoy outdoor activities amid a mix of sun and refreshing rain, marking a gentle shift toward the cooler months ahead. For more insights, explore Haitang Climate.