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September Weather in It Ong, Vietnam

Last updated: August 28, 2025

In September, the average temperature in It Ong, Vietnam hovers around 24°C (76°F), making it a pleasant time to visit. Expect temperatures to range from a cool 16°C (61°F) to a warm 33°C (91°F). However, be prepared for some rain, as precipitation can reach 184 mm (7.2 in) over 21 days. With an average humidity of 82%, the air can feel quite humid, so plan accordingly!

September Temperature in It Ong

In September in It Ong, the average temperature is 24°C (76°F). Maximums can reach 33°C (91°F) and minimums can be as low as 16°C (61°F). This pleasant climate makes it an ideal time for outdoor activities and exploring the local attractions.

September Weather in It Ong: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in It Ong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In It Ong, September typically has an average temperature of 24°C (76°F), with highs reaching up to 33°C (91°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec616370737778777676726861
Data source: Temperature data for It Ong 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 It Ong

In It Ong in September, the precipitation amount is 184 mm (7.2 in) spread over 21 days.

September Precipitation Trends in It Ong

The chart displays monthly precipitation patterns in It Ong, 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 It Ong, September typically receives around 184 mm (7.2 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec35172362682083744581841011723
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in It Ong

In It Ong in September, humidity is 82%. With an average temperature of 24°C (76°F), this humidity feels like wearing a warm, damp blanket, making travel uncomfortable and sticky as you explore.

September Average Humidity in It Ong

This chart illustrates the average monthly humidity levels in It Ong, 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 It Ong is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%65%57%50%68%79%91%92%82%76%72%68%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in It Ong

In It Ong 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 It Ong, you can check here.

Maximum UV Index Levels in It Ong for September

The chart shows the monthly maximum UV Index (UVI) for It Ong 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 It Ong typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec8101313151415141412108
Data source: It Ong 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 It Ong Compares to Other Months

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

This table compares monthly weather conditions in It Ong, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (62°F)35 mm (1.4 inches)63%very high
February Weather17°C (64°F)17 mm (0.7 inches)65%very high
March Weather21°C (71°F)23 mm (0.9 inches)57%extreme
April Weather23°C (74°F)62 mm (2.4 inches)50%extreme
May Weather25°C (78°F)68 mm (2.7 inches)68%extreme
June Weather25°C (78°F)208 mm (8.2 inches)79%extreme
July Weather25°C (77°F)374 mm (14.7 inches)91%extreme
August Weather25°C (77°F)458 mm (18.0 inches)92%extreme
September Weather24°C (76°F)184 mm (7.2 inches)82%extreme
October Weather22°C (72°F)101 mm (4.0 inches)76%extreme
November Weather20°C (68°F)17 mm (0.7 inches)72%very high
December Weather16°C (61°F)23 mm (0.9 inches)68%very high

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