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September Weather in Song Thao, Vietnam

Last updated: August 28, 2025

In September, the average temperature in Song Thao, Vietnam hovers around 28°C (83°F). Expect a minimum of 22°C (72°F) and a balmy maximum of 36°C (98°F). However, prepare for some rain, as 250 mm (9.8 in) of precipitation falls over 22 days. With an average humidity of 82%, the air will feel quite tropical, perfect for those who enjoy warm and wet climates.

September Temperature in Song Thao

In September in Song Thao, the average temperature is 28°C (83°F). Maximums can reach 36°C (98°F), and minimums can be as low as 22°C (72°F). This mild climate makes it an ideal destination for travelers looking to enjoy warm weather and outdoor activities.

September Weather in Song Thao: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Song Thao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Song Thao, September typically has an average temperature of 28°C (83°F), with highs reaching up to 36°C (98°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec646572768286858483777265
Data source: Temperature data for Song Thao 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 Song Thao

In Song Thao in September, the total precipitation amount is 250 mm (9.8 in) over the course of 22 days.

September Precipitation Trends in Song Thao

The chart displays monthly precipitation patterns in Song Thao, 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 Song Thao, September typically receives around 250 mm (9.8 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec4731641281732392994412502243937
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Song Thao

In Song Thao in September, humidity is 82%. With an average temperature of 28°C (83°F), this humidity feels like stepping into a warm, damp embrace, which can make traveling feel heavy and exhausting, as every movement can be met with a sticky veil of moisture that clings to the skin.

September Average Humidity in Song Thao

This chart illustrates the average monthly humidity levels in Song Thao, 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 Song Thao is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec66%71%69%64%73%81%90%89%82%77%72%71%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Song Thao

In Song Thao 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 Song Thao.

Maximum UV Index Levels in Song Thao for September

The chart shows the monthly maximum UV Index (UVI) for Song Thao 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 Song Thao typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121213131313131197
Data source: Song Thao 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 Song Thao Compares to Other Months

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

This table compares monthly weather conditions in Song Thao, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (64°F)47 mm (1.8 inches)66%very high
February Weather19°C (66°F)31 mm (1.2 inches)71%very high
March Weather22°C (73°F)64 mm (2.5 inches)69%extreme
April Weather25°C (77°F)128 mm (5.1 inches)64%extreme
May Weather28°C (82°F)173 mm (6.8 inches)73%extreme
June Weather30°C (86°F)239 mm (9.4 inches)81%extreme
July Weather30°C (85°F)299 mm (11.8 inches)90%extreme
August Weather29°C (85°F)441 mm (17.4 inches)89%extreme
September Weather28°C (83°F)250 mm (9.8 inches)82%extreme
October Weather25°C (77°F)224 mm (8.8 inches)77%extreme
November Weather22°C (73°F)39 mm (1.5 inches)72%very high
December Weather18°C (65°F)37 mm (1.5 inches)71%high

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