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September Weather in Halahai, China

Last updated: August 23, 2025

In September, the average temperature in Halahai, China hovers around 15°C (60°F), with fluctuations between a chilly 1°C (35°F) and a warm 31°C (89°F). Expect 92 mm (3.6 in) of precipitation spread over 10 days, contributing to a notably high average humidity of 82%.

September Temperature in Halahai

In September in Halahai, the average temperature is 15°C (60°F). Maximum temperatures can reach 31°C (89°F), while the minimum can drop as low as 1°C (35°F). Travelers should be prepared for a wide range of temperatures during this time.

September Weather in Halahai: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Halahai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Halahai, September typically has an average temperature of 15°C (60°F), with highs reaching up to 31°C (89°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec192946606976706043234
Data source: Temperature data for Halahai 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 Halahai

In Halahai in September, the total precipitation amount is 92 mm (3.6 in), which falls over the course of 10 days.

September Precipitation Trends in Halahai

The chart displays monthly precipitation patterns in Halahai, 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 Halahai, September typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec256253696150146921974
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Halahai

In Halahai in September humidity is 82%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and draining, which can hinder your travel experience.

September Average Humidity in Halahai

This chart illustrates the average monthly humidity levels in Halahai, 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 Halahai is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%60%60%57%58%76%84%85%82%77%61%62%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Halahai

In Halahai in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Halahai, you can refer to this Hourly UV Index in Halahai.

Maximum UV Index Levels in Halahai for September

The chart shows the monthly maximum UV Index (UVI) for Halahai 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 Halahai typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234688986421
Data source: Halahai 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 Halahai Compares to Other Months

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

This table compares monthly weather conditions in Halahai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-17°C (1°F)2 mm (0.1 inches)70%low
February Weather-13°C (10°F)5 mm (0.2 inches)60%moderate
March Weather-2°C (29°F)6 mm (0.2 inches)60%moderate
April Weather8°C (46°F)25 mm (1.0 inches)57%high
May Weather16°C (60°F)36 mm (1.4 inches)58%very high
June Weather21°C (69°F)96 mm (3.8 inches)76%very high
July Weather24°C (76°F)150 mm (5.9 inches)84%very high
August Weather21°C (70°F)146 mm (5.8 inches)85%very high
September Weather15°C (60°F)92 mm (3.6 inches)82%high
October Weather6°C (43°F)19 mm (0.8 inches)77%moderate
November Weather-5°C (23°F)7 mm (0.3 inches)61%low
December Weather-15°C (4°F)4 mm (0.2 inches)62%low

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