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September Weather in Dien Ban, Vietnam

Last updated: August 28, 2025

In September, the average temperature in Dien Ban, Vietnam hovers around 29°C (84°F). Expect a minimum of 25°C (77°F) and a maximum reaching 34°C (94°F). This month brings significant rainfall, totaling 246 mm (9.7 in) spread over 23 days, and the air remains quite humid with an average humidity of 88%.

September Temperature in Dien Ban

In September in Dien Ban, the average temperature is 29°C (84°F), with maximums reaching up to 34°C (94°F) and minimums dipping as low as 25°C (77°F). This warm climate makes it an ideal destination for travelers seeking sunny skies and outdoor adventures.

September Weather in Dien Ban: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Dien Ban, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dien Ban, September typically has an average temperature of 29°C (84°F), with highs reaching up to 34°C (94°F) and lows dropping to around 25°C (77°F).
JanFebMarAprMayJunJulAugSepOctNovDec727277798487868683807773
Data source: Temperature data for Dien Ban 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 Dien Ban

In Dien Ban in September, the total precipitation amount is 246 mm (9.7 in), recorded over a span of 23 days.

September Precipitation Trends in Dien Ban

The chart displays monthly precipitation patterns in Dien Ban, 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 Dien Ban, September typically receives around 246 mm (9.7 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec16184807910869146142246533596356
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dien Ban

In Dien Ban in September, humidity is 88%. With an average temperature of 29°C (84°F), this humidity feels like walking through a warm, wet blanket, making travel uncomfortable and draining as the air clings heavily to your skin.

September Average Humidity in Dien Ban

This chart illustrates the average monthly humidity levels in Dien Ban, 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 Dien Ban is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%83%78%75%80%85%85%87%88%90%91%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dien Ban

In Dien Ban in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Dien Ban.

Maximum UV Index Levels in Dien Ban for September

The chart shows the monthly maximum UV Index (UVI) for Dien Ban 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 Dien Ban typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121415141314141312109
Data source: Dien Ban 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.

How September Weather in Dien Ban Compares to Other Months

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

This table compares monthly weather conditions in Dien Ban, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (73°F)161 mm (6.4 inches)86%very high
February Weather22°C (73°F)84 mm (3.3 inches)83%extreme
March Weather25°C (77°F)80 mm (3.2 inches)78%extreme
April Weather26°C (80°F)79 mm (3.1 inches)75%extreme
May Weather29°C (84°F)108 mm (4.3 inches)80%extreme
June Weather30°C (87°F)69 mm (2.7 inches)85%extreme
July Weather30°C (86°F)146 mm (5.8 inches)85%extreme
August Weather30°C (86°F)142 mm (5.6 inches)87%extreme
September Weather29°C (84°F)246 mm (9.7 inches)88%extreme
October Weather27°C (80°F)533 mm (21.0 inches)90%extreme
November Weather25°C (77°F)596 mm (23.5 inches)91%very high
December Weather23°C (73°F)355 mm (14.0 inches)89%very high

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