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September Weather in Khanh Hai, Vietnam

Last updated: August 28, 2025

In September, the average temperature in Khanh Hai, Vietnam is a warm 27°C (82°F), with minimums dipping to 25°C (76°F) and maximums reaching up to 33°C (91°F). Expect considerable rainfall, with 168 mm (6.6 in) falling over approximately 21 days, contributing to an average humidity of 87%. Prepare for a balmy, wet month that invites both adventure and relaxation!

September Temperature in Khanh Hai

In September in Khanh Hai, the average temperature is 27°C (82°F), with maximums reaching 33°C (91°F) and minimums dropping to 25°C (76°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities in Khanh Hai.

September Weather in Khanh Hai: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Khanh Hai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Khanh Hai, September typically has an average temperature of 27°C (82°F), with highs reaching up to 33°C (91°F) and lows dropping to around 25°C (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec767679818383838281807977
Data source: Temperature data for Khanh Hai 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 Khanh Hai

In Khanh Hai in September, the precipitation amount is 168 mm (6.6 in) spread across 21 days.

September Precipitation Trends in Khanh Hai

The chart displays monthly precipitation patterns in Khanh Hai, 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 Khanh Hai, September typically receives around 168 mm (6.6 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec4510163111964768616821521885
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Khanh Hai

In Khanh Hai in September, humidity is 87%. With an average temperature of 27°C (82°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel sticky and draining; it's essential to stay hydrated and take breaks in shaded areas to truly enjoy your exploration.

September Average Humidity in Khanh Hai

This chart illustrates the average monthly humidity levels in Khanh Hai, 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 Khanh Hai is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%78%76%78%84%86%87%87%86%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Khanh Hai

In Khanh Hai in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Khanh Hai.

Maximum UV Index Levels in Khanh Hai for September

The chart shows the monthly maximum UV Index (UVI) for Khanh Hai 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 Khanh Hai typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111416151514141515131210
Data source: Khanh Hai 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 Khanh Hai Compares to Other Months

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

This table compares monthly weather conditions in Khanh Hai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)45 mm (1.8 inches)82%extreme
February Weather24°C (76°F)10 mm (0.4 inches)79%extreme
March Weather26°C (79°F)16 mm (0.6 inches)78%extreme
April Weather27°C (81°F)31 mm (1.2 inches)76%extreme
May Weather28°C (83°F)119 mm (4.7 inches)78%extreme
June Weather29°C (84°F)64 mm (2.5 inches)84%extreme
July Weather28°C (83°F)76 mm (3.0 inches)86%extreme
August Weather28°C (83°F)86 mm (3.4 inches)87%extreme
September Weather27°C (82°F)168 mm (6.6 inches)87%extreme
October Weather27°C (80°F)215 mm (8.5 inches)86%extreme
November Weather26°C (79°F)218 mm (8.6 inches)89%extreme
December Weather25°C (77°F)85 mm (3.3 inches)88%very high

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