Last updated: October 31, 2025
September in Taipei, Taiwan ushers in a mix of warm temperatures and high humidity, making it an intriguing time to experience the city. With maximum temperatures reaching a sizzling 35°C (95°F) and an average of 26°C (80°F), the weather invites both locals and tourists to explore its vibrant streets. However, prepare for occasional rain, as the month sees around 205 mm (8.1 in) of precipitation over 19 days. The air remains thick with moisture, boasting an average humidity of 80%, which can enhance the warmth. Whether you're basking in the sun or caught in a refreshing downpour, September's weather creates a dynamic backdrop for the energetic pulse of Taipei.
As September rolls around in Taipei, Taiwan, the city enjoys a pleasant transition from the peak summer heat. With minimum temperatures around 20°C (68°F) and averages reaching 26°C (80°F), the month offers a comfortable climate for outdoor activities. Despite the lingering warmth, maximum temperatures can still soar up to 35°C (95°F), reminiscent of the summer months, yet the humidity begins to ease. This gradual shift signals the approach of autumn, making September a delightful time to explore Taipei’s vibrant streets and outdoor markets under mostly sunny skies. Overall, it's a month marked by warm days and cooler evenings, perfect for enjoying the best of Taiwan's early fall charm.
In September, Taipei experiences a significant rainfall total of 205 mm (8.1 in), consistent with the city's trend of substantial precipitation during the late summer months. This month marks a slight decrease from the peak seen in August, but with 19 days of rain, it's clear that September still embodies the tail end of Taiwan's rainy season. Notably, the wetter months—June through August—set the stage for September’s downpours, creating a pattern of high humidity and occasional storm activity. As the city transitions into October, precipitation holds steady at 205 mm, suggesting a persistent wet atmosphere that characterizes the region's autumnal climate. Overall, September showcases Taipei's continually humid environment, making it a pivotal month in the rainfall cycle.
As September unfolds in Taipei, Taiwan, the humidity level sits at a comfortable 80%, marking a slight dip from the peak summer months of July and August, which saw humidity levels soar to 84% and 85%, respectively. This transition signals a gradual shift towards the milder autumn climate, mirroring the general trend of fluctuating humidity throughout the year. The earlier months exhibit higher humidity levels, peaking in the warm summer; however, September’s slight decrease hints at the approach of cooler, crisper air. Following this, October and November maintain humidity levels around 79% and 81%, reinforcing the seasonal shift. Overall, September offers a blend of warmth and moisture, striking a balance as Taipei begins to embrace the autumn season.
In September, Taipei continues to experience a high UV Index of 12, categorizing it within the extreme exposure zone. This mirrors the intensity felt throughout the summer months, with burn times remaining critically low at just 10 minutes. As the year transitions from the blistering heat of July and August, the UV levels show minimal decrease, suggesting a persistent need for sun protection. Observing the trend from January to September reveals a progressive elevation in UV exposure, peaking in the mid-summer months but stabilizing within the extreme range as autumn approaches. Whether you're exploring the vibrant city or lounging outdoors, keeping vigilant is essential during this period. For more details, visit Taipei UV Index.
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As September unfolds in Taipei, Taiwan, residents and visitors bask in an impressive 289 hours of sunshine, marking it as a vibrant time of year. This month seamlessly transitions from the sun-drenched peak of summer, where July boasts a remarkable 337 hours of daylight, to the more mellow days of October with 242 hours. What’s striking is the gradual increase in sunlight from January's modest 139 hours to the heights of summer, creating an upward trend that peaks mid-year before starting to ebb. September's radiant days serve as a gentle reminder of the summer's lingering warmth, making it an ideal time to explore the city's outdoor attractions or enjoy leisurely strolls in the bustling streets.
As the summer heat begins to wane, September emerges as a highlight for sunny weather in Taipei, Taiwan, boasting a 51% chance of sunshine. This marks a notable upswing compared to the sweltering months of June and July, where the likelihood of clear skies plummets to just 9% and 20%, respectively. With the summer season's end, September provides a refreshing transition, offering residents and travelers alike an opportunity to enjoy the vibrant city under more favorable conditions. The month's sunny disposition stands out amidst a generally less bright yearly pattern, making it a perfect time to explore Taipei's outdoor attractions.
As September unfolds in Taipei, Taiwan, the city enjoys a thoughtful balance of 12 hours of daylight, reminiscent of the longer months of spring and summer. This marks a gradual transition from the abundant light of May through August, where the sun graces the sky for 13 hours, creating vibrant evenings ideal for outdoor activities. As the days begin to shorten, Taipei bids farewell to summer, signaling a shift towards the crispness of autumn. The daylight gradually tapers off, with October bringing just 11 hours, reminding residents that the spectrum of sunlight is ever-changing. This cyclical pattern not only accentuates the beauty of the seasons but also invites the opportunity to savor the rich experiences Taipei has to offer in every hour of light.
As September rolls in, the winds in Taipei begin to stir with a gentle vigor, reaching an average speed of 2.2 m/s (5 mph). This marks a subtle rise from the stillness of the summer months, where the winds dipped to their lowest in August at just 1.4 m/s (3 mph). The transition into autumn is palpable, signaling a shift away from the stagnation of summer to a more refreshing breeze that hints at the invigorating changes ahead. Following September, wind speeds noticeably increase into October, often reaching 3.8 m/s (9 mph), heralding the arrival of cooler temperatures. Thus, September serves as a transitional month, bridging the calm of summer with the lively gusts of autumn, making it a delightful time for enjoying the outdoors in Taipei.
Weather in Taipei varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Taipei, focusing on differences in temperature, rainfall, humidity, and UV levels.
September in Taipei is characterized by warm temperatures, with nighttime lows around 20°C (68°F) and daytime highs reaching up to 35°C (95°F). It is a month with significant humidity, averaging around 80%, and experiences substantial rainfall, totaling 205 mm (8.1 in) across 19 days. In contrast, January offers a much cooler climate, with temperatures ranging from a chilly 3°C (38°F) at night to a comfortable 26°C (79°F) during the day, averaging 15°C (59°F). Precipitation in January is significantly lower, with only 75 mm (2.9 in) over 12 days and slightly reduced humidity at 76%. For a more detailed comparison, check out Taipei weather in January.
September and February present a stark contrast in weather conditions. In September, temperatures range from a minimum of 20°C (68°F) to a scorching maximum of 35°C (95°F), with an average of 26°C (80°F). The month also sees substantial precipitation, with 205 mm (8.1 in) falling over 19 days, contributing to a high humidity level of 80%. In contrast, February offers a much cooler climate, with temperatures ranging from a chilly 5°C (41°F) to a comfortable maximum of 28°C (82°F) and an average of 15°C (60°F). Precipitation in February is notably less, with 80 mm (3.2 in) over 13 days, while humidity levels are lower at 74%. For a more detailed look at February weather, you can visit Taipei weather in February.
In September, the weather is characterized by warmer temperatures, ranging from a minimum of 20°C (68°F) to a maximum of 35°C (95°F), with an average of 26°C (80°F). This month also sees a considerable amount of rainfall, with 205 mm (8.1 in) distributed over 19 days, contributing to a high humidity level of 80%. In contrast, March features cooler temperatures, with a minimum of 8°C (47°F) and a maximum of 31°C (88°F), averaging at 18°C (65°F). Precipitation is significantly lower in March, totaling 96 mm (3.8 in) across 15 days, and humidity remains quite similar at 79%. For a closer look at what to expect, check out Taipei weather in March.
When comparing the weather in September and April, notable differences emerge. September tends to be warmer, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 35°C (95°F), while April is cooler, with temperatures ranging from 8°C (47°F) to 33°C (91°F). Both months experience significant rainfall, but September receives more precipitation at 205 mm (8.1 in) over 19 days, compared to April's 135 mm (5.3 in) over 16 days. Humidity remains relatively high in both months, with September at 80% and April slightly higher at 81%. For more detailed information, you can check Taipei weather in April.
In comparing the weather between September and May, September tends to be warmer, with average temperatures around 26°C (80°F) compared to May's average of 24°C (76°F). Both months can reach a maximum of 35°C (95°F), but September has a higher minimum temperature of 20°C (68°F) versus May's 13°C (56°F). September also experiences more precipitation, with 205 mm (8.1 in) over 19 days, compared to May’s 168 mm (6.6 in) across 18 days. The humidity levels are slightly higher in May at 83%, compared to September's 80%. For a more detailed look at May's weather, you can check Taipei weather in May.
In comparing the weather patterns of September and June, we find some noteworthy similarities and differences. Both months feature a minimum temperature of around 20°C (68°F) and peak at a maximum of 35°C (95°F for September and 96°F for June), indicating a warm climate throughout. However, June tends to be slightly warmer on average at 27°C (81°F) compared to September's 26°C (80°F). Precipitation levels are also higher in June, with 254 mm (10.0 in) of rainfall over 20 days compared to September's 205 mm (8.1 in) over 19 days, and humidity levels remain relatively high in both months at 80% for September and 83% for June. For a detailed look at June's weather, you can check out Taipei weather in June.
When comparing the weather in September and July, both months exhibit warm temperatures but with some notable differences. In September, minimum temperatures are slightly lower at 20°C (68°F), while July sees a minimum of 23°C (74°F), leading to an average temperature of 26°C (80°F) in September versus 28°C (83°F) in July. July also boasts higher maximum temperatures, reaching 36°C (97°F) compared to September's 35°C (95°F). Precipitation is more pronounced in September with 205 mm (8.1 in) over 19 days, while July has 227 mm (8.9 in) over 18 days. Humidity levels remain high in both months, with September at 80% and July slightly higher at 84%. For those seeking more detailed insights, you can check Taipei weather in July.
In comparing the weather patterns of September and August, September tends to be slightly cooler, with average temperatures ranging from a minimum of 20°C (68°F) to a maximum of 35°C (95°F), compared to August's higher temperatures, which range from a minimum of 23°C (73°F) to a maximum of 36°C (97°F). While both months experience significant rainfall, September sees a decrease in precipitation with 205 mm (8.1 in) over 19 days, whereas August records 265 mm (10.4 in) over 20 days. Humidity levels are also somewhat lower in September at 80%, compared to 85% in August, contributing to a slightly more comfortable feel during the month. For a closer look at the weather conditions specific to August, you can refer to Taipei weather in August.
In September, the weather features higher temperatures, with minimums around 20°C (68°F) and maximums reaching up to 35°C (95°F), creating a warm average of 26°C (80°F). However, September is also characterized by significant rainfall, experiencing 205 mm (8.1 in) of precipitation over 19 days and maintaining a high humidity level of 80%.
In contrast, October sees a decline in temperatures, with a minimum of 13°C (56°F) and an average of 23°C (73°F), while maximums remain fairly high at 34°C (93°F). Interestingly, despite similar total precipitation of 205 mm (8.1 in) over 18 days, humidity slightly decreases to 79%. For a more detailed overview, check out Taipei weather in October.
In September, the weather tends to be much warmer, with average temperatures ranging from a minimum of 20°C (68°F) to a maximum of 35°C (95°F). The month also experiences significant rainfall, totaling 205 mm (8.1 in) over 19 days, while humidity stays high at around 80%. In contrast, November brings a noticeable drop in temperatures, with averages between 11°C (52°F) and 29°C (85°F). Rainfall is less intense, totaling 126 mm (5.0 in) over the same number of days, and humidity remains relatively stable at 81%. For more details, check out Taipei weather in November.
September and December weather differ significantly, with September boasting warmer temperatures ranging from a minimum of 20°C (68°F) to a maximum of 35°C (95°F) and an average of 26°C (80°F). This month also experiences higher precipitation, totaling 205 mm (8.1 in) and occurring over 19 days, all while maintaining a humidity level of 80%. In contrast, December cools down considerably, featuring temperatures that range from a minimum of 7°C (44°F) to a maximum of 28°C (83°F), with an average of 16°C (62°F). Although it sees slightly less rainfall at 145 mm (5.7 in) over 20 days, the humidity remains steady at 80%. For more detailed information, check out Taipei weather in December.
As September unfolds in Taipei, the weather shifts distinctly from the sweltering summer months. With average temperatures settling at a comfortable 26°C (80°F), the city begins to shed some of the intense heat typical of July and August. However, this transition comes with an increase in humidity and the potential for rainfall, as the city experiences around 19 days of precipitation, totaling 205 mm. This blend of warmth and moisture creates a lush atmosphere that stands out compared to the drier preceding months. For a comprehensive understanding of what to expect throughout the year, be sure to check Taipei Climate.