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September Weather in Heishui, China

Last updated: August 22, 2025

In Heishui, China, the average temperature in September is a pleasant 17°C (63°F). However, you may experience a range from a chilly 4°C (39°F) to a warm 31°C (88°F). Be prepared for around 68 mm (2.7 in) of precipitation spread across approximately 7 days, along with an average humidity level of 81%.

September Temperature in Heishui

In September in Heishui, the average temperature is 17°C (63°F). The maximum can reach 31°C (88°F), while the minimum can be as low as 4°C (39°F). This mild weather makes Heishui an ideal destination for travelers looking to enjoy a comfortable climate.

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

The chart illustrates September temperature patterns in Heishui, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heishui, September typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (88°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec71533506271787263472710
Data source: Temperature data for Heishui 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 Heishui

In Heishui in September, the precipitation amount is 68 mm (2.7 in) over the course of 7 days.

September Precipitation Trends in Heishui

The chart displays monthly precipitation patterns in Heishui, 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 Heishui, September typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec2251257681021276811144
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Heishui

In Heishui in September humidity is 81%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket enveloping you, making travel slightly oppressive and calling for frequent breaks in air-conditioned spaces to recharge and enjoy your journey comfortably.

September Average Humidity in Heishui

This chart illustrates the average monthly humidity levels in Heishui, 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 Heishui is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%50%50%54%57%73%82%85%81%77%59%46%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Heishui

In Heishui in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Heishui.

Maximum UV Index Levels in Heishui for September

The chart shows the monthly maximum UV Index (UVI) for Heishui 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 Heishui typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789997421
Data source: Heishui 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 Heishui Compares to Other Months

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

This table compares monthly weather conditions in Heishui, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-14°C (8°F)2 mm (0.1 inches)63%low
February Weather-10°C (15°F)2 mm (0.1 inches)50%moderate
March Weather1°C (33°F)5 mm (0.2 inches)50%moderate
April Weather10°C (50°F)12 mm (0.5 inches)53%high
May Weather17°C (63°F)57 mm (2.2 inches)57%very high
June Weather22°C (71°F)67 mm (2.7 inches)73%very high
July Weather26°C (79°F)102 mm (4.0 inches)82%very high
August Weather22°C (72°F)127 mm (5.0 inches)85%very high
September Weather17°C (63°F)68 mm (2.7 inches)81%high
October Weather8°C (47°F)11 mm (0.4 inches)77%moderate
November Weather-3°C (27°F)14 mm (0.5 inches)59%low
December Weather-12°C (10°F)4 mm (0.2 inches)46%low

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