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September Weather in Cao Lanh, Vietnam

Last updated: August 28, 2025

In September, the average temperature in Cao Lanh, Vietnam hovers around 28°C (82°F), with temperatures ranging from a refreshing 24°C (76°F) to a steamy 35°C (94°F). Expect a substantial 276 mm (10.9 in) of precipitation over 27 days, contributing to a high average humidity of 89% that creates a lush atmosphere.

September Temperature in Cao Lanh

In September in Cao Lanh, the average temperature is 28°C (82°F). The maximum can reach 35°C (94°F), and the minimum can be as low as 24°C (76°F). It's a great time to visit for those who enjoy warm weather and outdoor activities.

September Weather in Cao Lanh: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cao Lanh, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cao Lanh, September typically has an average temperature of 28°C (82°F), with highs reaching up to 35°C (94°F) and lows dropping to around 24°C (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec808184858483828282828281
Data source: Temperature data for Cao Lanh 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 Cao Lanh

In Cao Lanh in September, the precipitation amount is 276 mm (10.9 in) recorded over the course of 27 days.

September Precipitation Trends in Cao Lanh

The chart displays monthly precipitation patterns in Cao Lanh, 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 Cao Lanh, September typically receives around 276 mm (10.9 inches) of precipitation spread over approximately 27 days.
JanFebMarAprMayJunJulAugSepOctNovDec42221710519021526027227730517973
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cao Lanh

In Cao Lanh 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 Cao Lanh

This chart illustrates the average monthly humidity levels in Cao Lanh, 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 Cao Lanh 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 Cao Lanh

In Cao Lanh 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 Cao Lanh, you can check here.

Maximum UV Index Levels in Cao Lanh for September

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

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

This table compares monthly weather conditions in Cao Lanh, 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)22 mm (0.9 inches)61%extreme
March Weather29°C (84°F)17 mm (0.7 inches)58%extreme
April Weather29°C (85°F)105 mm (4.1 inches)60%extreme
May Weather29°C (84°F)190 mm (7.5 inches)80%extreme
June Weather28°C (83°F)215 mm (8.5 inches)87%extreme
July Weather28°C (83°F)260 mm (10.2 inches)89%extreme
August Weather28°C (82°F)272 mm (10.7 inches)90%extreme
September Weather28°C (82°F)276 mm (10.9 inches)89%extreme
October Weather28°C (82°F)305 mm (12.0 inches)87%extreme
November Weather28°C (82°F)179 mm (7.1 inches)87%extreme
December Weather27°C (81°F)73 mm (2.9 inches)80%extreme

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