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September Weather in Ba To, Vietnam

Last updated: August 28, 2025

In Ba To, Vietnam, the average temperature in September hovers around 27°C (81°F), with lows dipping to a comfortable 22°C (71°F) and highs reaching a sweltering 36°C (96°F). Expect 279 mm (11.0 in) of precipitation spread over 26 days, contributing to a high average humidity of 88%. Plan accordingly to embrace the warm, tropical vibes!

September Temperature in Ba To

In September in Ba To, the average temperature is 27°C (81°F), with maximums reaching up to 36°C (96°F) and minimums dropping as low as 22°C (71°F). It's a great time to visit for warm weather and outdoor activities!

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

The chart illustrates September temperature patterns in Ba To, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ba To, September typically has an average temperature of 27°C (81°F), with highs reaching up to 36°C (96°F) and lows dropping to around 22°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec707176798284848481787571
Data source: Temperature data for Ba To 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 To

In Ba To in September, the precipitation amount is 279 mm (11.0 in) spread over 26 days, indicating a significant amount of rainfall during that period.

September Precipitation Trends in Ba To

The chart displays monthly precipitation patterns in Ba To, 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 To, September typically receives around 279 mm (11.0 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec161906788156122165152280489767445
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ba To

In Ba To in September, humidity is 88%. With an average temperature of 27°C (81°F), this humidity feels like a warm, thick blanket wrapping around you as you travel, making every step feel more laborious and requiring frequent breaks to cool down and hydrate.

September Average Humidity in Ba To

This chart illustrates the average monthly humidity levels in Ba To, 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 To is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%83%78%75%80%85%85%87%88%90%91%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ba To

In Ba To 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 To, you can check here.

Maximum UV Index Levels in Ba To for September

The chart shows the monthly maximum UV Index (UVI) for Ba To 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 To typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121415151314141412119
Data source: Ba To 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 To Compares to Other Months

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

This table compares monthly weather conditions in Ba To, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (71°F)161 mm (6.3 inches)86%very high
February Weather22°C (71°F)90 mm (3.6 inches)83%extreme
March Weather25°C (76°F)67 mm (2.6 inches)78%extreme
April Weather26°C (79°F)88 mm (3.4 inches)75%extreme
May Weather28°C (83°F)156 mm (6.2 inches)80%extreme
June Weather29°C (85°F)122 mm (4.8 inches)85%extreme
July Weather29°C (84°F)165 mm (6.5 inches)85%extreme
August Weather29°C (84°F)152 mm (6.0 inches)87%extreme
September Weather27°C (81°F)279 mm (11.0 inches)88%extreme
October Weather25°C (78°F)489 mm (19.2 inches)90%extreme
November Weather24°C (75°F)767 mm (30.2 inches)91%extreme
December Weather22°C (71°F)445 mm (17.5 inches)89%very high

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