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September Weather in Long Thanh, Vietnam

Last updated: August 28, 2025

In Long Thanh, Vietnam, the average temperature in September hovers around 27°C (82°F), with a minimum of 24°C (76°F) and a maximum peaking at 34°C (93°F). Expect a fair share of rain, with an average precipitation amount of 299 mm (11.8 in) spread over 28 days. The atmosphere is quite humid, with an average humidity level of 89%, making this month feel particularly warm and tropical.

September Temperature in Long Thanh

In September, in Long Thanh, the average temperature is 27°C (82°F). The maximum can reach 34°C (93°F), while the minimum can drop to 24°C (76°F). This pleasant climate makes Long Thanh an ideal destination for travelers seeking warm weather adventures.

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

The chart illustrates September temperature patterns in Long Thanh, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Long Thanh, September typically has an average temperature of 27°C (82°F), with highs reaching up to 34°C (93°F) and lows dropping to around 24°C (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec808183848483828281818180
Data source: Temperature data for Long Thanh 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 Thanh

In Long Thanh in September, the total precipitation amount is 299 mm (11.8 in) over the course of 28 days.

September Precipitation Trends in Long Thanh

The chart displays monthly precipitation patterns in Long Thanh, 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 Thanh, September typically receives around 299 mm (11.8 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec4316177318723430433529929817680
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Long Thanh

In Long Thanh in September, humidity is 89%. With an average temperature of 27°C (82°F), this humidity feels like a warm, steamy blanket enveloping you, making outdoor activities challenging and encouraging travelers to seek the comfort of shaded areas or refreshing indoor spaces.

September Average Humidity in Long Thanh

This chart illustrates the average monthly humidity levels in Long Thanh, 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 Thanh 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 Thanh

In Long Thanh 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 Long Thanh.

Maximum UV Index Levels in Long Thanh for September

The chart shows the monthly maximum UV Index (UVI) for Long Thanh 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 Thanh typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec101315141412131413131110
Data source: Long Thanh 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 Thanh Compares to Other Months

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

This table compares monthly weather conditions in Long Thanh, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)43 mm (1.7 inches)65%very high
February Weather27°C (81°F)16 mm (0.6 inches)61%extreme
March Weather28°C (83°F)17 mm (0.7 inches)58%extreme
April Weather29°C (85°F)73 mm (2.9 inches)60%extreme
May Weather29°C (84°F)187 mm (7.4 inches)80%extreme
June Weather28°C (83°F)234 mm (9.2 inches)87%extreme
July Weather28°C (82°F)304 mm (12.0 inches)89%extreme
August Weather28°C (82°F)335 mm (13.2 inches)90%extreme
September Weather27°C (82°F)299 mm (11.8 inches)89%extreme
October Weather27°C (81°F)298 mm (11.7 inches)87%extreme
November Weather27°C (81°F)176 mm (6.9 inches)87%extreme
December Weather27°C (80°F)80 mm (3.1 inches)80%very high

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