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September Weather in Nga Son, Vietnam

Last updated: August 28, 2025

In September, the average temperature in Nga Son, Vietnam hovers around a warm 29°C (84°F). Expect a minimum of 24°C (75°F) and highs reaching up to 35°C (95°F). However, be prepared for ample rainfall; the region receives about 274 mm (10.8 in) of precipitation spread over 21 days. With an average humidity of 84%, the weather can feel quite tropical!

September Temperature in Nga Son

In September in Nga Son, the average temperature is 29°C (84°F), with maximums reaching 35°C (95°F) and minimums dropping to as low as 24°C (75°F). This warm climate makes it an ideal time for outdoor adventures and beach activities.

September Weather in Nga Son: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Nga Son, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nga Son, September typically has an average temperature of 29°C (84°F), with highs reaching up to 35°C (95°F) and lows dropping to around 24°C (75°F).
JanFebMarAprMayJunJulAugSepOctNovDec656672768288868583787366
Data source: Temperature data for Nga Son 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 Nga Son

In Nga Son in September, the precipitation amount is 274 mm (10.8 in) during a span of 21 days.

September Precipitation Trends in Nga Son

The chart displays monthly precipitation patterns in Nga Son, 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 Nga Son, September typically receives around 274 mm (10.8 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec402449861561093033382742767843
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nga Son

In Nga Son in September, humidity is 84%. With an average temperature of 29°C (84°F), this humidity feels like a warm blanket enveloping you, making travel sticky and somewhat stifling, yet invigorating, as every step is accompanied by a gentle, humid embrace.

September Average Humidity in Nga Son

This chart illustrates the average monthly humidity levels in Nga Son, 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 Nga Son 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 Nga Son

In Nga Son in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Nga Son.

Maximum UV Index Levels in Nga Son for September

The chart shows the monthly maximum UV Index (UVI) for Nga Son 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 Nga Son typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121313131414131197
Data source: Nga Son 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 Nga Son Compares to Other Months

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

This table compares monthly weather conditions in Nga Son, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (66°F)40 mm (1.6 inches)74%very high
February Weather19°C (66°F)24 mm (1.0 inches)77%very high
March Weather22°C (72°F)49 mm (1.9 inches)74%extreme
April Weather24°C (76°F)86 mm (3.4 inches)70%extreme
May Weather28°C (83°F)156 mm (6.1 inches)78%extreme
June Weather31°C (88°F)109 mm (4.3 inches)82%extreme
July Weather30°C (86°F)303 mm (11.9 inches)90%extreme
August Weather30°C (86°F)338 mm (13.3 inches)90%extreme
September Weather29°C (84°F)274 mm (10.8 inches)84%extreme
October Weather25°C (78°F)276 mm (10.9 inches)81%extreme
November Weather23°C (73°F)78 mm (3.1 inches)78%very high
December Weather19°C (67°F)43 mm (1.7 inches)78%high

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