September Weather in Tan Ky, Vietnam

Last updated: August 28, 2025

In September, Tan Ky, Vietnam experiences a tropical climate characterized by warm temperatures and high humidity. The maximum temperature reaches a scorching 37°C (99°F), while the average hovers around a comfortable 28°C (83°F), dipping to a minimum of 22°C (71°F) at night. This month sees significant precipitation, totaling 272 mm (10.7 in), spread across approximately 20 days, making it one of the wetter months of the year. With humidity levels soaring at 84%, visitors should brace for a steamy atmosphere, ideal for those who appreciate the lush, vibrant landscapes that accompany the rainy season.

September Temperature in Tan Ky

In September, Tan Ky, Vietnam experiences a transition marked by a slight decrease in temperatures as the summer heat begins to wane. With minimums averaging at 22°C (71°F) and maximums peaking at 37°C (99°F), the month enjoys a comfortable average of 28°C (83°F), making it an inviting time for outdoor exploration. The temperatures, while still warm, signal the onset of the rainy season, bringing refreshing relief from the intense summer months of June and July, where highs soared above 40°C (104°F). This gradual cooling trend continues into October, offering a perfect balance of warmth and refreshment for residents and visitors alike.

September Weather in Tan Ky: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Tan Ky, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tan Ky, 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).
JanFebMarAprMayJunJulAugSepOctNovDec666774788489888683777366
Data source: Temperature data for Tan Ky 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 Tan Ky

In September, Tan Ky, Vietnam, experiences a notable shift in precipitation, receiving 272 mm (10.7 in) over 20 days of rainfall. This substantial amount follows August's peak of 291 mm, indicating that the monsoon season is still in full swing. As the wet season progresses, September's rainfall remains high but begins to taper off compared to the preceding months, hinting at the transition towards a slightly drier October. The consistent rain during this month not only nourishes the lush landscape but also sets the stage for the following month, where precipitation will reach a seasonal peak of 360 mm. Overall, September acts as a critical bridge between the height of the rainy season and the gradual onset of drier conditions.

September Precipitation Trends in Tan Ky

The chart displays monthly precipitation patterns in Tan Ky, 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 Tan Ky, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4138641211391022542912723609664
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tan Ky

In September, Tan Ky, Vietnam, experiences a noticeable drop in humidity, settling at a comfortable 84%. This slight decrease follows a humid summer, where July and August recorded the highest levels at 90%. The month's humidity reflects a transitional phase, paving the way for a gradual decline as the region moves into the cooler months. Comparatively, September's levels remain elevated when juxtaposed against the earlier months of the year, maintaining the trend of high humidity typical of Tan Ky's tropical climate. As temperatures begin to cool, the slightly reduced humidity offers a refreshing respite, suggesting a shift towards more comfortable weather ahead.

September Average Humidity in Tan Ky

This chart illustrates the average monthly humidity levels in Tan Ky, 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 Tan Ky is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%77%74%70%78%82%90%90%84%81%78%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Tan Ky

In September, Tan Ky, Vietnam experiences a UV Index of 14, categorized as extreme, indicating high sun exposure risks. This trend of extreme UV levels has persisted throughout the summer months, from July through September, with a consistent burn time of just 10 minutes. Following a peak during this period, the UV Index is expected to decrease slightly in October. It's essential for residents and visitors alike to take protective measures against harmful UV rays, especially during these critical months. For more detailed insights, check out the Tan Ky UV Index.

Maximum UV Index Levels in Tan Ky for September

The chart shows the monthly maximum UV Index (UVI) for Tan Ky 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 Tan Ky typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec811131313131414141298
Data source: Tan Ky 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 Tan Ky

As summer transitions into autumn, September in Tan Ky, Vietnam continues to bask in a generous 280 hours of sunshine, marking a seamless shift from the vibrant peak of summer. Following a high-energy May and June, where daylight seemed to flourish with over 300 hours, September maintains a delightful warmth that invites locals and travelers alike to enjoy the outdoors. This month’s sunshine is slightly diminished from the heights of the summer months, yet still stands robust compared to the late autumn and winter months ahead. With daylight gradually waning as the year progresses, September serves as a beautiful bridge between the lush vitality of summer and the contemplative cooler tones of fall.

Monthly Sunshine Duration in Tan Ky: September Highlighted

The September sunshine duration represents the total number of hours Tan Ky 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.
JanFebMarAprMayJunJulAugSepOctNovDec192h253h267h272h308h305h288h277h280h249h249h243h
Data source: Tan Ky September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tan Ky During September

In September, Tan Ky, Vietnam, experiences a 20% chance of sunny weather, which reflects a slight dip compared to the summer months. This is part of an observable trend where the likelihood of sunny days tends to decrease as the year progresses, particularly noticeable from August's 13%. The overall pattern reveals that early months such as February and May boast a more favorable chance of sunshine, with probabilities reaching as high as 38% and 40%. Thus, while September may not offer the peak of sun-soaked days, it still provides a fair opportunity for those seeking some rays before the rainy season fully takes hold.

Percentage of Sunny Days in September in Tan Ky

The chart illustrates the percentage of sunny days in Tan Ky 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 Tan Ky experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%38%20%21%40%17%23%13%20%14%29%38%
Data source: Tan Ky September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tan Ky in September

In September, Tan Ky, Vietnam enjoys a pleasant 12 hours of daylight, marking a transition period as the days begin to shorten towards the end of the year. This duration is consistent with the previous months of August and April, where daylight likewise spans 12 hours, showcasing the region's relatively stable daylight trend. Notably, daylight peaks in May through July, with an impressive 13 hours, creating a sun-soaked stretch perfect for outdoor activities. As autumn approaches, daylight gradually diminishes, hinting at the rhythm of the seasons that Tan Ky experiences, where each month presents a harmonious balance of light and darkness.

Average Daylight Hours in Tan Ky for September

The chart illustrates the variation in daylight duration in Tan Ky throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 6m11h 30m12h 1m12h 34m13h 1m13h 14m13h 7m12h 44m12h 13m11h 41m11h 13m10h 59m
Data source: Tan Ky daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Tan Ky

As September arrives in Tan Ky, Vietnam, the gentle whisper of winds at an average speed of 1.5 m/s (3 mph) brings a tranquil shift in the air. This month sees a slight dip in wind activity compared to the bustling gusts of late summer, where winds peaked in August at 2.3 m/s (5 mph). The gradual decrease from the vibrant summer breezes reflects a seasonal transition; however, the wind speeds remain consistent with the quieter months of spring and early summer. With September's calmer winds, the landscape takes on a serene ambiance, inviting locals and travelers alike to enjoy the idyllic charm of this quaint town. As the year unfolds, the wind patterns hint at the approaching autumn, setting the stage for a gentle shift toward the cooler months ahead.

Average September Wind Speed in Tan Ky

The chart displays monthly wind speed patterns in Tan Ky, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.61.61.51.72.42.02.31.5 m/s1.81.61.8
Data source: Tan Ky September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Tan Ky Compares to Other Months

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

September and January present starkly contrasting weather conditions. In September, temperatures soar, with a minimum of 22°C (71°F) and an average high of 37°C (99°F), accompanied by high humidity levels at 84%. This month experiences significant rainfall, totaling 272 mm (10.7 in) over 20 days, making it a particularly wet and steamy period. In contrast, January offers a more temperate climate, with a much cooler minimum temperature of 7°C (45°F) and an average of 19°C (66°F). Rainfall is minimal during this month, averaging only 41 mm (1.6 in) over just 8 days, and humidity is lower at 74%. For more information on specific weather conditions in January, you can check Tan Ky weather in January.

September and February showcase stark contrasts in weather patterns. September typically experiences higher temperatures, with an average of 28°C (83°F) and maximums reaching up to 37°C (99°F), alongside significant rainfall totaling 272 mm (10.7 in) over 20 days, resulting in high humidity levels of 84%. In contrast, February brings much cooler temperatures, averaging 20°C (67°F) and peaking at 33°C (91°F), along with minimal precipitation of just 37 mm (1.5 in) over 7 days and lower humidity at 77%. For more insight into the weather in February, you can check out Tan Ky weather in February.

September and March present distinctly different weather patterns. In September, temperatures are generally warmer, with averages around 28°C (83°F) and a maximum of 37°C (99°F), while March’s average is cooler at 23°C (74°F), peaking at 36°C (97°F). Additionally, September experiences significantly higher precipitation, with 272 mm (10.7 in) over about 20 days, compared to March's 64 mm (2.5 in) spread over 12 days. Humidity is also higher in September at 84%, whereas March sees a more comfortable level at 74%. For a closer look at seasonal conditions, check out Tan Ky weather in March.

September and April present contrasting weather patterns. In September, temperatures range from a minimum of 22°C (71°F) to a maximum of 37°C (99°F), with an average of 28°C (83°F). The month experiences significant rainfall, totaling 272 mm (10.7 in) across 20 days, coupled with high humidity levels of 84%. In contrast, April boasts milder temperatures, with a minimum of 15°C (60°F) and an average of 26°C (78°F), peaking at 38°C (102°F). Precipitation is notably lower, with only 121 mm (4.8 in) over 12 days, and humidity at a more comfortable 70%. For a closer look at weather specifics, you can check Tan Ky weather in April.

In comparing the weather of September and May, we see distinct differences in temperature and precipitation patterns. September boasts a minimum temperature of 22°C (71°F) and an average of 28°C (83°F), with a maximum reaching 37°C (99°F). However, it also experiences higher precipitation levels, totaling 272 mm (10.7 in) over 20 days, accompanied by a humidity level of 84%.

In contrast, May has slightly cooler nighttime temperatures, with a minimum of 19°C (66°F) and an average maximum temperature of 41°C (106°F), making it significantly hotter during the day. Rainfall in May is less intense, with 139 mm (5.5 in) over 14 days and lower humidity at 78%. For a more detailed look at May weather, you can explore Tan Ky weather in May.

In comparing the weather patterns of September and June, it becomes evident that both months experience warm temperatures, but June tends to be hotter overall. September has a range of temperatures from a minimum of 22°C (71°F) to a maximum of 37°C (99°F), averaging around 28°C (83°F). In contrast, June sees a higher minimum of 25°C (77°F) and can peak at 42°C (108°F), with an average temperature of approximately 32°C (89°F).

Precipitation is more frequent in September, with 272 mm (10.7 in) spread over 20 days, compared to June's 102 mm (4.0 in) over just 10 days. Humidity levels are quite similar, with September at 84% and June slightly lower at 82%. For more details on June weather in Tan Ky, you can visit Tan Ky weather in June.

Comparing the weather in September and July reveals distinct differences in temperature and precipitation patterns. September experiences a slightly lower average temperature, with minimums around 22°C (71°F) and maximums reaching 37°C (99°F), while July is warmer overall, featuring minimums of 25°C (76°F) and maximums peaking at 41°C (106°F). While both months are humid, September has an average humidity of 84%, compared to July's higher 90%. Rainfall is more frequent in September, with 272 mm (10.7 in) spread over 20 days, compared to July’s 254 mm (10.0 in) over 17 days. For more details, you can check Tan Ky weather in July.

In comparing the weather between September and August, September tends to be slightly cooler, with average temperatures ranging from a minimum of 22°C (71°F) to a maximum of 37°C (99°F), while August features higher temperatures, with a minimum of 24°C (76°F) and a maximum reaching up to 40°C (104°F). Additionally, both months experience considerable rainfall, but August sees a slightly higher total precipitation of 291 mm (11.4 in) over 19 days compared to September's 272 mm (10.7 in) over 20 days. Humidity is also a factor, as September has an average humidity of 84%, while August is more humid at 90%. For a detailed look at August's conditions, you can visit Tan Ky weather in August.

In September, temperatures are typically warmer, with a minimum of 22°C (71°F) and an average of 28°C (83°F), peaking at a scorching 37°C (99°F). The month experiences significant rainfall, totaling 272 mm (10.7 in) over 20 days, accompanied by high humidity at 84%. In contrast, October brings a slight drop in temperatures, with minimums of 17°C (63°F) and an average of 25°C (78°F), reaching a maximum of 34°C (93°F). However, October also sees an increase in precipitation, totaling 360 mm (14.2 in) over 21 days, albeit with slightly lower humidity at 81%. For more detailed information on October weather, you can visit Tan Ky weather in October.

In September, the weather tends to be much warmer and more humid, with temperatures ranging from a minimum of 22°C (71°F) to a sizzling maximum of 37°C (99°F) and an average of 28°C (83°F). The month also experiences significant rainfall, totaling 272 mm (10.7 in) over approximately 20 days, leading to a high humidity level of 84%. In contrast, November brings a cooler, more comfortable climate, with temperatures dropping to a minimum of 15°C (59°F), an average of 23°C (73°F), and a maximum of 33°C (92°F). Precipitation is markedly less in November, with only 96 mm (3.8 in) spread over about 11 days, and humidity falling to 78%. For a more detailed look at the conditions in November, check out Tan Ky weather in November.

September and December present a striking contrast in weather patterns. In September, temperatures soar with a minimum of 22°C (71°F) and an average of 28°C (83°F), peaking at a sweltering 37°C (99°F). This month also experiences significant rainfall, with 272 mm (10.7 in) spread over 20 days, and humidity levels reaching a high of 84%. In contrast, December offers a much cooler climate, featuring a minimum temperature of 8°C (47°F) and averaging 19°C (67°F), with a maximum of 29°C (84°F). Precipitation is substantially lower at 64 mm (2.5 in) over just 9 days, and humidity decreases to 78%. For more details on the December weather, you can check Tan Ky weather in December.

Compare Tan Ky's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Tan Ky

In September, Tan Ky experiences a notable shift in weather compared to other months, characterized by increased humidity and significant precipitation. With an average temperature hovering around 28°C, the warmth remains, but the frequent rain—spanning nearly two-thirds of the month—brings a refreshing change to the dry spell of summer. This combination of high humidity and regular rainfall contributes to a lush landscape, making the region vibrantly green. For those planning to visit, it's essential to be prepared for these rainy days and embrace the unique charm of September weather. To learn more about the overall climate conditions throughout the year, visit Tan Ky Climate.