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September Weather in Yen Chau, Vietnam

Last updated: August 28, 2025

In September, the average temperature in Yen Chau, Vietnam reaches a comfortable 25°C (77°F), with nighttime lows dipping to a refreshing 17°C (64°F) and daytime highs soaring to a warm 35°C (95°F). Expect 119 mm (4.7 in) of precipitation spread over 18 days, contributing to an average humidity of 82%. Whether you're looking to enjoy the sun or the occasional rain, Yen Chau offers a climate that caters to all preferences!

September Temperature in Yen Chau

In September in Yen Chau, the average temperature is 25°C (77°F). Maximums can reach 35°C (95°F) and minimums can be as low as 17°C (64°F). This pleasant climate makes Yen Chau an ideal destination for travelers looking to enjoy warm weather activities and sightseeing.

September Weather in Yen Chau: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Yen Chau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yen Chau, September typically has an average temperature of 25°C (77°F), with highs reaching up to 35°C (95°F) and lows dropping to around 17°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec616370737880797877726760
Data source: Temperature data for Yen Chau 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 Yen Chau

In Yen Chau in September, the precipitation amount is 119 mm (4.7 in) over the course of 18 days.

September Precipitation Trends in Yen Chau

The chart displays monthly precipitation patterns in Yen Chau, 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 Yen Chau, September typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec281963951161482322831191252120
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Yen Chau

In Yen Chau in September, humidity is 82%. With an average temperature of 25°C (77°F), this humidity feels like a warm, oppressive blanket enveloping you as you explore, making every step feel more laborious and prompting the need for frequent hydration breaks.

September Average Humidity in Yen Chau

This chart illustrates the average monthly humidity levels in Yen Chau, 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 Yen Chau is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%65%57%50%68%79%91%92%82%76%72%68%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Yen Chau

In Yen Chau in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Yen Chau, you can check here.

Maximum UV Index Levels in Yen Chau for September

The chart shows the monthly maximum UV Index (UVI) for Yen Chau 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 Yen Chau typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec8101313141415141412108
Data source: Yen Chau 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 Yen Chau Compares to Other Months

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

This table compares monthly weather conditions in Yen Chau, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (61°F)28 mm (1.1 inches)63%very high
February Weather17°C (63°F)19 mm (0.7 inches)65%very high
March Weather21°C (70°F)63 mm (2.5 inches)57%extreme
April Weather23°C (73°F)95 mm (3.7 inches)50%extreme
May Weather25°C (78°F)116 mm (4.6 inches)68%extreme
June Weather27°C (80°F)147 mm (5.8 inches)79%extreme
July Weather26°C (79°F)232 mm (9.1 inches)91%extreme
August Weather25°C (78°F)283 mm (11.1 inches)92%extreme
September Weather25°C (77°F)119 mm (4.7 inches)82%extreme
October Weather22°C (72°F)125 mm (4.9 inches)76%extreme
November Weather20°C (68°F)21 mm (0.8 inches)72%very high
December Weather16°C (61°F)20 mm (0.8 inches)68%very high

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