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September Weather in Long Xuyen, Vietnam

Last updated: August 28, 2025

In Long Xuyen, Vietnam, the average temperature in September is a warm 28°C (82°F). Expect minimums of 24°C (76°F) and highs reaching 34°C (94°F). During this month, you can anticipate around 275 mm (10.8 in) of precipitation, spread over 28 days, creating a climate with an average humidity of 89%. Remember to pack your umbrellas and stay hydrated!

September Temperature in Long Xuyen

In September in Long Xuyen, the average temperature is 28°C (82°F), with maximums reaching up to 34°C (94°F) and minimums dropping as low as 24°C (76°F). This warm weather makes it an ideal time for traveling and enjoying outdoor activities in Long Xuyen.

September Weather in Long Xuyen: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Long Xuyen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Long Xuyen, September typically has an average temperature of 28°C (82°F), with highs reaching up to 34°C (94°F) and lows dropping to around 24°C (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec808083858483828282828281
Data source: Temperature data for Long Xuyen 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 Long Xuyen

In Long Xuyen in September, the precipitation amount is 275 mm (10.8 in) over the course of 28 days.

September Precipitation Trends in Long Xuyen

The chart displays monthly precipitation patterns in Long Xuyen, 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 Long Xuyen, September typically receives around 275 mm (10.8 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec42232111618221624324927528818271
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Long Xuyen

In Long Xuyen in September humidity is 89%. With an average temperature of 28°C (82°F), this humidity feels like a thick, warm blanket enveloping you, making every step feel slightly heavier and the air dense, which can be quite stifling for traveling.

September Average Humidity in Long Xuyen

This chart illustrates the average monthly humidity levels in Long Xuyen, 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 Long Xuyen is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%61%58%61%80%87%89%90%89%87%87%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Long Xuyen

In Long Xuyen 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 Long Xuyen, you can check here.

Maximum UV Index Levels in Long Xuyen for September

The chart shows the monthly maximum UV Index (UVI) for Long Xuyen 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 Long Xuyen typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec101315141413131414131111
Data source: Long Xuyen 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 Long Xuyen Compares to Other Months

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

This table compares monthly weather conditions in Long Xuyen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)42 mm (1.7 inches)65%very high
February Weather27°C (81°F)23 mm (0.9 inches)61%extreme
March Weather29°C (84°F)21 mm (0.8 inches)58%extreme
April Weather29°C (85°F)116 mm (4.6 inches)60%extreme
May Weather29°C (84°F)182 mm (7.2 inches)80%extreme
June Weather28°C (83°F)216 mm (8.5 inches)87%extreme
July Weather28°C (83°F)243 mm (9.6 inches)89%extreme
August Weather28°C (83°F)249 mm (9.8 inches)90%extreme
September Weather28°C (82°F)275 mm (10.8 inches)89%extreme
October Weather28°C (82°F)288 mm (11.4 inches)87%extreme
November Weather28°C (82°F)182 mm (7.1 inches)87%extreme
December Weather27°C (81°F)71 mm (2.8 inches)80%extreme

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