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September Weather in Son Duong, Vietnam

Last updated: August 28, 2025

In September, the average temperature in Son Duong, Vietnam hovers around 27°C (81°F), with minimums dipping to 19°C (67°F) and soaring maximums reaching 36°C (97°F). Expect ample precipitation, totaling 311 mm (12.3 in) over 23 days, paired with an average humidity of 82%—perfect for those who enjoy a tropical atmosphere!

September Temperature in Son Duong

In September in Son Duong, the average temperature is 27°C (81°F). Maximums can reach 36°C (97°F), and minimums can be as low as 19°C (67°F). This makes it an ideal time for travelers seeking warm weather and outdoor activities.

September Weather in Son Duong: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Son Duong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Son Duong, September typically has an average temperature of 27°C (81°F), with highs reaching up to 36°C (97°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec626470748084838281757063
Data source: Temperature data for Son Duong 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 Son Duong

In Son Duong in September, the total precipitation amount is 311 mm (12.3 in) spread over 23 days.

September Precipitation Trends in Son Duong

The chart displays monthly precipitation patterns in Son Duong, 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 Son Duong, September typically receives around 311 mm (12.3 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec5337861632263533634593112414637
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Son Duong

In Son Duong in September humidity is 82%. With an average temperature of 27°C (81°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel more exhausting, and leaving you longing for the relief of air-conditioned spaces during your travels.

September Average Humidity in Son Duong

This chart illustrates the average monthly humidity levels in Son Duong, 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 Son Duong is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec66%71%69%64%73%81%90%89%82%77%72%71%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Son Duong

In Son Duong 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 Son Duong.

Maximum UV Index Levels in Son Duong for September

The chart shows the monthly maximum UV Index (UVI) for Son Duong 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 Son Duong typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121213131313131197
Data source: Son Duong 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 Son Duong Compares to Other Months

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

This table compares monthly weather conditions in Son Duong, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (63°F)53 mm (2.1 inches)66%very high
February Weather18°C (64°F)37 mm (1.5 inches)71%very high
March Weather21°C (71°F)86 mm (3.4 inches)69%extreme
April Weather24°C (75°F)163 mm (6.4 inches)64%extreme
May Weather27°C (81°F)226 mm (8.9 inches)73%extreme
June Weather29°C (84°F)353 mm (13.9 inches)81%extreme
July Weather28°C (84°F)363 mm (14.3 inches)90%extreme
August Weather28°C (83°F)459 mm (18.1 inches)89%extreme
September Weather27°C (81°F)311 mm (12.3 inches)82%extreme
October Weather24°C (76°F)241 mm (9.5 inches)77%extreme
November Weather21°C (70°F)46 mm (1.8 inches)72%very high
December Weather17°C (63°F)37 mm (1.5 inches)71%high

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