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September Weather in Heyu, China

Last updated: August 22, 2025

In September, the average temperature in Heyu, China is a pleasant 16°C (62°F). You can expect a minimum of 9°C (49°F) and a comfortable maximum of 26°C (79°F). During this month, the region sees an average precipitation of 276 mm (10.8 in) over approximately 21 days, contributing to an average humidity level of 77%.

September Temperature in Heyu

In September in Heyu, the average temperature is 16°C (62°F). The maximum can reach 26°C (79°F), and the minimum can be as low as 9°C (49°F). This comfortable climate makes Heyu an ideal destination for enjoyable outdoor activities and exploration during this time of year.

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

The chart illustrates September temperature patterns in Heyu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heyu, September typically has an average temperature of 16°C (62°F), with highs reaching up to 26°C (79°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec303344515864686961524233
Data source: Temperature data for Heyu 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 Heyu

In Heyu in September, the precipitation amount is 276 mm (10.8 in) over the course of 21 days.

September Precipitation Trends in Heyu

The chart displays monthly precipitation patterns in Heyu, 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 Heyu, September typically receives around 276 mm (10.8 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec51671141541832723802842761577444
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Heyu

In Heyu in September, humidity is 77%. With an average temperature of 16°C (62°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities feel heavy and draining, so travelers may want to plan for breaks in shaded areas and stay hydrated.

September Average Humidity in Heyu

This chart illustrates the average monthly humidity levels in Heyu, 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 Heyu is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%76%87%82%83%84%87%85%77%81%86%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Heyu

In Heyu in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Heyu.

Maximum UV Index Levels in Heyu for September

The chart shows the monthly maximum UV Index (UVI) for Heyu 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 Heyu typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111212131212975
Data source: Heyu 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 Heyu Compares to Other Months

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

This table compares monthly weather conditions in Heyu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)51 mm (2.0 inches)72%moderate
February Weather0°C (33°F)67 mm (2.7 inches)76%high
March Weather7°C (44°F)114 mm (4.5 inches)87%very high
April Weather11°C (52°F)154 mm (6.1 inches)82%extreme
May Weather15°C (59°F)183 mm (7.2 inches)83%extreme
June Weather18°C (65°F)272 mm (10.7 inches)84%extreme
July Weather20°C (69°F)380 mm (14.9 inches)87%extreme
August Weather20°C (69°F)284 mm (11.2 inches)85%extreme
September Weather16°C (62°F)276 mm (10.8 inches)77%extreme
October Weather11°C (52°F)157 mm (6.2 inches)81%very high
November Weather6°C (43°F)74 mm (2.9 inches)86%high
December Weather0°C (33°F)44 mm (1.7 inches)81%moderate

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