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September Weather in Van Ha, Vietnam

Last updated: August 28, 2025

In September, the average temperature in Van Ha, Vietnam hovers around 28°C (83°F), offering a warm and inviting climate. Expect temperatures to range from a cool 22°C (72°F) to a sizzling 37°C (99°F). However, be prepared for some rain, as 240 mm (9.4 in) of precipitation is typically spread over 22 days. With an average humidity of 84%, the air can feel quite muggy, so stay hydrated and enjoy all that this vibrant destination has to offer!

September Temperature in Van Ha

In September in Van Ha, the average temperature is 28°C (83°F). Maximums can reach up to 37°C (99°F), and minimums can drop as low as 22°C (72°F). This warm climate makes Van Ha an ideal destination for travelers looking to enjoy sunny days and vibrant outdoor activities.

September Weather in Van Ha: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Van Ha, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Van Ha, September typically has an average temperature of 28°C (83°F), with highs reaching up to 37°C (99°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec656673778388868583777366
Data source: Temperature data for Van Ha 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 Van Ha

In Van Ha in September, the total precipitation amount reaches 240 mm (9.4 in) over the course of 22 days.

September Precipitation Trends in Van Ha

The chart displays monthly precipitation patterns in Van Ha, 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 Van Ha, September typically receives around 240 mm (9.4 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec352546851631133223422402426734
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Van Ha

In Van Ha in September, humidity is 84%. With an average temperature of 28°C (83°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and the air almost stifling for traveling.

September Average Humidity in Van Ha

This chart illustrates the average monthly humidity levels in Van Ha, 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 Van Ha is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%77%74%70%78%82%90%90%84%81%78%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Van Ha

In Van Ha 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 Van Ha, you can check here.

Maximum UV Index Levels in Van Ha for September

The chart shows the monthly maximum UV Index (UVI) for Van Ha 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 Van Ha typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121313131414141197
Data source: Van Ha 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 Van Ha Compares to Other Months

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

This table compares monthly weather conditions in Van Ha, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (66°F)35 mm (1.4 inches)74%very high
February Weather19°C (67°F)25 mm (1.0 inches)77%very high
March Weather23°C (73°F)46 mm (1.8 inches)74%extreme
April Weather25°C (77°F)85 mm (3.3 inches)70%extreme
May Weather29°C (84°F)163 mm (6.4 inches)78%extreme
June Weather31°C (88°F)113 mm (4.4 inches)82%extreme
July Weather30°C (87°F)322 mm (12.7 inches)90%extreme
August Weather29°C (85°F)342 mm (13.5 inches)90%extreme
September Weather28°C (83°F)240 mm (9.4 inches)84%extreme
October Weather25°C (78°F)242 mm (9.5 inches)81%extreme
November Weather23°C (73°F)67 mm (2.6 inches)78%very high
December Weather19°C (66°F)34 mm (1.3 inches)78%high

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