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September Weather in Hiep Duc, Vietnam

Last updated: August 28, 2025

In Hiep Duc, Vietnam, the average temperature in September hovers around 27°C (81°F), making it a warm getaway. Daily temperatures can vary significantly, with a minimum of 21°C (70°F) and soaring to a maximum of 37°C (98°F). Be prepared for some wet weather, as precipitation totals can reach 268 mm (10.6 in) over 26 days, accompanied by a high average humidity of 88%.

September Temperature in Hiep Duc

In September in Hiep Duc, the average temperature is 27°C (81°F). Maximums can reach 37°C (98°F) and minimums can drop to as low as 21°C (70°F). This makes Hiep Duc an ideal destination for travelers seeking warm and pleasant weather during this time.

September Weather in Hiep Duc: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Hiep Duc, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hiep Duc, September typically has an average temperature of 27°C (81°F), with highs reaching up to 37°C (98°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec697076798284838380777469
Data source: Temperature data for Hiep Duc 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 Hiep Duc

In Hiep Duc in September, the precipitation amount is 268 mm (10.6 in) over the course of 26 days.

September Precipitation Trends in Hiep Duc

The chart displays monthly precipitation patterns in Hiep Duc, 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 Hiep Duc, September typically receives around 268 mm (10.6 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec1318694158201133160154268500608344
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hiep Duc

In Hiep Duc in September, humidity is 88%. With an average temperature of 27°C (81°F), this humidity feels like a warm, thick blanket wrapping around you as you travel, making every step feel more laborious and requiring frequent breaks to cool down and hydrate.

September Average Humidity in Hiep Duc

This chart illustrates the average monthly humidity levels in Hiep Duc, 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 Hiep Duc 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 Hiep Duc

In Hiep Duc 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 Hiep Duc.

Maximum UV Index Levels in Hiep Duc for September

The chart shows the monthly maximum UV Index (UVI) for Hiep Duc 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 Hiep Duc typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121415141314141312109
Data source: Hiep Duc 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 Hiep Duc Compares to Other Months

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

This table compares monthly weather conditions in Hiep Duc, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (69°F)131 mm (5.2 inches)86%very high
February Weather21°C (70°F)86 mm (3.4 inches)83%extreme
March Weather25°C (76°F)94 mm (3.7 inches)78%extreme
April Weather26°C (79°F)158 mm (6.2 inches)75%extreme
May Weather28°C (82°F)200 mm (7.9 inches)80%extreme
June Weather29°C (84°F)133 mm (5.3 inches)85%extreme
July Weather28°C (83°F)160 mm (6.3 inches)85%extreme
August Weather28°C (84°F)154 mm (6.0 inches)87%extreme
September Weather27°C (81°F)268 mm (10.6 inches)88%extreme
October Weather25°C (77°F)500 mm (19.7 inches)90%extreme
November Weather23°C (74°F)608 mm (23.9 inches)91%very high
December Weather21°C (70°F)344 mm (13.5 inches)89%very high

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