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September Weather in Hua Sai, Thailand

Last updated: August 27, 2025

In Hua Sai, Thailand, the average temperature in September is a comfortable 28°C (83°F), with lows dipping to 25°C (76°F) and peaking at a warm 35°C (95°F). Expect about 145 mm (5.7 in) of precipitation spread over 25 days, contributing to an average humidity of 87%. Prepare for a humid yet vibrant month!

September Temperature in Hua Sai

In September in Hua Sai, the average temperature is 28°C (83°F). Maximums can reach 35°C (95°F), while minimums can be as low as 25°C (76°F). This pleasant climate makes Hua Sai an ideal destination for travelers seeking warm weather and outdoor activities.

September Weather in Hua Sai: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Hua Sai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hua Sai, September typically has an average temperature of 28°C (83°F), with highs reaching up to 35°C (95°F) and lows dropping to around 25°C (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec808182838484848482828180
Data source: Temperature data for Hua Sai 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 Hua Sai

In Hua Sai in September, the precipitation amount is 145 mm (5.7 in) spread over 25 days, indicating a relatively wet period.

September Precipitation Trends in Hua Sai

The chart displays monthly precipitation patterns in Hua Sai, 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 Hua Sai, September typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec18845581651521039188145245422333
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hua Sai

In Hua Sai in September humidity is 87%. With an average temperature of 28°C (83°F), this humidity feels like you're enveloped in a warm, sticky blanket, making outdoor activities slightly uncomfortable and travel plans require frequent breaks for hydration and respite from the heat.

September Average Humidity in Hua Sai

This chart illustrates the average monthly humidity levels in Hua Sai, 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 Hua Sai is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%78%77%78%83%83%85%87%85%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hua Sai

In Hua Sai 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 Hua Sai, you can check here.

Maximum UV Index Levels in Hua Sai for September

The chart shows the monthly maximum UV Index (UVI) for Hua Sai 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 Hua Sai typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121416151413131414141211
Data source: Hua Sai 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 Hua Sai Compares to Other Months

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

This table compares monthly weather conditions in Hua Sai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)188 mm (7.4 inches)81%extreme
February Weather27°C (81°F)45 mm (1.8 inches)78%extreme
March Weather28°C (83°F)58 mm (2.3 inches)78%extreme
April Weather29°C (84°F)165 mm (6.5 inches)77%extreme
May Weather29°C (84°F)152 mm (6.0 inches)78%extreme
June Weather29°C (84°F)103 mm (4.0 inches)83%extreme
July Weather29°C (84°F)91 mm (3.6 inches)82%extreme
August Weather29°C (84°F)88 mm (3.5 inches)85%extreme
September Weather28°C (83°F)145 mm (5.7 inches)87%extreme
October Weather28°C (82°F)245 mm (9.7 inches)85%extreme
November Weather27°C (81°F)422 mm (16.6 inches)88%extreme
December Weather27°C (81°F)333 mm (13.1 inches)88%extreme

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