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September Weather in Diem Dien, Vietnam

Last updated: August 28, 2025

In September, the average temperature in Diem Dien, Vietnam is a warm 29°C (84°F). You'll experience temperatures ranging from a minimum of 24°C (75°F) to a sweltering maximum of 35°C (94°F). Expect 302 mm (11.9 in) of precipitation spread over 22 days, contributing to an average humidity of 82%. Be prepared for a tropical climate that keeps you on your toes!

September Temperature in Diem Dien

In September in Diem Dien, the average temperature is 29°C (84°F). The maximum can reach 35°C (94°F), while the minimum can be as low as 24°C (75°F). This warm and pleasant weather makes it an ideal time to explore and enjoy outdoor activities in Diem Dien.

September Weather in Diem Dien: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Diem Dien, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Diem Dien, September typically has an average temperature of 29°C (84°F), with highs reaching up to 35°C (94°F) and lows dropping to around 24°C (75°F).
JanFebMarAprMayJunJulAugSepOctNovDec656671768287868584787467
Data source: Temperature data for Diem Dien 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 Diem Dien

In Diem Dien in September, the precipitation amount is 302 mm (11.9 in) over the course of 22 days.

September Precipitation Trends in Diem Dien

The chart displays monthly precipitation patterns in Diem Dien, 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 Diem Dien, September typically receives around 302 mm (11.9 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec312747821471562864333023056141
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Diem Dien

In Diem Dien in September humidity is 82%. With an average temperature of 29°C (84°F), this humidity feels like a heavy blanket wrapping around you, making sightseeing ventures feel more exhausting and requiring frequent breaks to stay hydrated.

September Average Humidity in Diem Dien

This chart illustrates the average monthly humidity levels in Diem Dien, 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 Diem Dien 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 Diem Dien

In Diem Dien 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 Diem Dien.

Maximum UV Index Levels in Diem Dien for September

The chart shows the monthly maximum UV Index (UVI) for Diem Dien 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 Diem Dien typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121313131414131297
Data source: Diem Dien 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 Diem Dien Compares to Other Months

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

This table compares monthly weather conditions in Diem Dien, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (66°F)31 mm (1.2 inches)66%very high
February Weather19°C (66°F)27 mm (1.1 inches)71%very high
March Weather22°C (72°F)47 mm (1.9 inches)69%extreme
April Weather24°C (76°F)82 mm (3.2 inches)64%extreme
May Weather28°C (83°F)147 mm (5.8 inches)73%extreme
June Weather31°C (88°F)156 mm (6.1 inches)81%extreme
July Weather30°C (87°F)286 mm (11.3 inches)90%extreme
August Weather30°C (86°F)433 mm (17.1 inches)89%extreme
September Weather29°C (84°F)302 mm (11.9 inches)82%extreme
October Weather26°C (79°F)305 mm (12.0 inches)77%extreme
November Weather23°C (74°F)61 mm (2.4 inches)72%very high
December Weather19°C (67°F)41 mm (1.6 inches)71%high

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