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September Weather in Ba Tri, Vietnam

Last updated: August 28, 2025

In September, the average temperature in Ba Tri, Vietnam is a warm 28°C (82°F), with daily highs reaching up to 33°C (93°F) and lows around 24°C (76°F). Expect 268 mm (10.6 in) of precipitation spread over 28 days, contributing to an average humidity of 85%. Ideal for those who enjoy a tropical climate!

September Temperature in Ba Tri

In September, in Ba Tri, the average temperature is 28°C (82°F). The maximum can reach 33°C (93°F), and the minimum can be as low as 24°C (76°F). This mild weather makes it an ideal time for travelers to explore and enjoy outdoor activities in Ba Tri.

September Weather in Ba Tri: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ba Tri, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ba Tri, September typically has an average temperature of 28°C (82°F), with highs reaching up to 33°C (93°F) and lows dropping to around 24°C (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec808082848483828282828280
Data source: Temperature data for Ba Tri 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 Ba Tri

In Ba Tri in September, the precipitation amount is 268 mm (10.6 in) over a period of 28 days.

September Precipitation Trends in Ba Tri

The chart displays monthly precipitation patterns in Ba Tri, 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 Ba Tri, September typically receives around 268 mm (10.6 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec3812137219722325527526832319992
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ba Tri

In Ba Tri in September humidity is 85%. With an average temperature of 28°C (82°F), this humidity feels like a warm blanket enveloping you, making outdoor activities a sweaty endeavor and requiring frequent breaks to stay refreshed.

September Average Humidity in Ba Tri

This chart illustrates the average monthly humidity levels in Ba Tri, 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 Ba Tri is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%75%76%78%80%82%83%85%85%83%86%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ba Tri

In Ba Tri 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 Ba Tri, you can check here.

Maximum UV Index Levels in Ba Tri for September

The chart shows the monthly maximum UV Index (UVI) for Ba Tri 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 Ba Tri typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111416141413141414131110
Data source: Ba Tri 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 Ba Tri Compares to Other Months

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

This table compares monthly weather conditions in Ba Tri, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)38 mm (1.5 inches)77%extreme
February Weather26°C (80°F)12 mm (0.5 inches)75%extreme
March Weather28°C (82°F)13 mm (0.5 inches)76%extreme
April Weather29°C (84°F)72 mm (2.8 inches)78%extreme
May Weather29°C (85°F)197 mm (7.8 inches)80%extreme
June Weather28°C (83°F)223 mm (8.8 inches)82%extreme
July Weather28°C (82°F)255 mm (10.0 inches)83%extreme
August Weather28°C (82°F)275 mm (10.8 inches)85%extreme
September Weather28°C (82°F)268 mm (10.6 inches)85%extreme
October Weather28°C (82°F)323 mm (12.7 inches)83%extreme
November Weather28°C (82°F)199 mm (7.8 inches)86%extreme
December Weather27°C (80°F)92 mm (3.6 inches)85%very high

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