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September Weather in Hat Lot, Vietnam

Last updated: August 28, 2025

In Hat Lot, Vietnam, the average temperature in September hovers around 25°C (78°F), with a minimum of 17°C (63°F) and a maximum reaching 34°C (94°F). Expect 121 mm (4.8 in) of precipitation spread across 19 days, contributing to an average humidity of 82%. Be prepared for a warm and humid atmosphere!

September Temperature in Hat Lot

In September in Hat Lot, the average temperature is 25°C (78°F), with maximums reaching 34°C (94°F) and minimums dropping to as low as 17°C (63°F). This pleasant climate makes it a great time to explore and enjoy outdoor activities in Hat Lot.

September Weather in Hat Lot: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Hat Lot, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hat Lot, September typically has an average temperature of 25°C (78°F), with highs reaching up to 34°C (94°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec626471747980797877736861
Data source: Temperature data for Hat Lot 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 Hat Lot

In Hat Lot in September, the precipitation amount is 121 mm (4.8 in) spread over 19 days.

September Precipitation Trends in Hat Lot

The chart displays monthly precipitation patterns in Hat Lot, 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 Hat Lot, September typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec3525671031021782853221211031925
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hat Lot

In Hat Lot in September, humidity is 82%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities a bit more challenging and encouraging you to seek shade or a cool spot during your travels.

September Average Humidity in Hat Lot

This chart illustrates the average monthly humidity levels in Hat Lot, 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 Hat Lot 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 Hat Lot

In Hat Lot 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 Hat Lot, you can check here.

Maximum UV Index Levels in Hat Lot for September

The chart shows the monthly maximum UV Index (UVI) for Hat Lot 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 Hat Lot typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131314141414141298
Data source: Hat Lot 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 Hat Lot Compares to Other Months

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

This table compares monthly weather conditions in Hat Lot, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (62°F)34 mm (1.4 inches)63%very high
February Weather18°C (64°F)25 mm (1.0 inches)65%very high
March Weather22°C (71°F)67 mm (2.6 inches)57%extreme
April Weather23°C (74°F)103 mm (4.0 inches)50%extreme
May Weather26°C (79°F)102 mm (4.0 inches)68%extreme
June Weather27°C (80°F)178 mm (7.0 inches)79%extreme
July Weather26°C (79°F)285 mm (11.2 inches)91%extreme
August Weather26°C (78°F)322 mm (12.7 inches)92%extreme
September Weather25°C (78°F)121 mm (4.8 inches)82%extreme
October Weather23°C (73°F)103 mm (4.0 inches)76%extreme
November Weather20°C (69°F)18 mm (0.7 inches)72%very high
December Weather16°C (62°F)25 mm (1.0 inches)68%very high

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