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September Weather in Bac Son, Vietnam

Last updated: August 28, 2025

In September, the average temperature in Bac Son, Vietnam is a pleasant 26°C (79°F). During this time, temperatures can dip to a minimum of 18°C (65°F) and rise to a maximum of 34°C (94°F). Expect 257 mm (10.1 in) of precipitation spread over 23 days, contributing to an average humidity of 82%. Enjoy the tropical vibes while staying prepared for the occasional downpour!

September Temperature in Bac Son

In September in Bac Son, the average temperature is 26°C (79°F). The maximum can reach 34°C (94°F) and the minimum can be as low as 18°C (65°F). This pleasant climate makes Bac Son an ideal destination for travelers seeking warmth and comfortable weather.

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

The chart illustrates September temperature patterns in Bac Son, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bac Son, September typically has an average temperature of 26°C (79°F), with highs reaching up to 34°C (94°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec586067717781818079726759
Data source: Temperature data for Bac Son 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 Bac Son

In Bac Son in September, the precipitation amount is 257 mm (10.1 in) spread over 23 days, indicating a significant level of rainfall during that time.

September Precipitation Trends in Bac Son

The chart displays monthly precipitation patterns in Bac Son, 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 Bac Son, September typically receives around 257 mm (10.1 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec75741281502053262964082571995051
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bac Son

In Bac Son in September, humidity is 82%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket that envelops you, making outdoor activities feel more taxing and requiring frequent breaks to stay hydrated.

September Average Humidity in Bac Son

This chart illustrates the average monthly humidity levels in Bac Son, 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 Bac Son 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 Bac Son

In Bac Son 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 Bac Son.

Maximum UV Index Levels in Bac Son for September

The chart shows the monthly maximum UV Index (UVI) for Bac Son 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 Bac Son typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121213131414131297
Data source: Bac Son 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 Bac Son Compares to Other Months

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

This table compares monthly weather conditions in Bac Son, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)75 mm (3.0 inches)66%very high
February Weather15°C (60°F)74 mm (2.9 inches)71%very high
March Weather19°C (67°F)128 mm (5.0 inches)69%extreme
April Weather22°C (71°F)150 mm (5.9 inches)64%extreme
May Weather25°C (77°F)205 mm (8.1 inches)73%extreme
June Weather27°C (81°F)326 mm (12.8 inches)81%extreme
July Weather27°C (81°F)296 mm (11.6 inches)90%extreme
August Weather27°C (80°F)408 mm (16.1 inches)89%extreme
September Weather26°C (79°F)257 mm (10.1 inches)82%extreme
October Weather22°C (72°F)199 mm (7.8 inches)77%extreme
November Weather19°C (67°F)49 mm (1.9 inches)72%very high
December Weather15°C (59°F)51 mm (2.0 inches)71%high

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