nomadseason

September Weather in Heihe, China

Last updated: August 23, 2025

In Heihe, China, the average temperature in September hovers around 5°C (41°F). Expect a chilly range, with minimums dropping as low as -9°C (16°F), while highs can reach up to 17°C (63°F). Precipitation is common this time of year, averaging 99 mm (3.9 in) over approximately 19 days. With an average humidity of 88%, be prepared for a damp and brisk atmosphere!

September Temperature in Heihe

In September in Heihe, the average temperature is 5°C (41°F). The maximum can reach 17°C (63°F), while the minimum can drop as low as -9°C (16°F). Travelers should be prepared for a mix of cool conditions and potential cold snaps.

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

The chart illustrates September temperature patterns in Heihe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heihe, September typically has an average temperature of 5°C (41°F), with highs reaching up to 17°C (63°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec591826354448484128146
Data source: Temperature data for Heihe generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Heihe

In Heihe in September, the precipitation amount is 99 mm (3.9 in) spread over 19 days.

September Precipitation Trends in Heihe

The chart displays monthly precipitation patterns in Heihe, 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 Heihe, September typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec1113233556117841359957169
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Heihe

In Heihe in September humidity is 88%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making it essential to bundle up for your travels, as every breath feels heavy in the air and the landscape appears cloaked in a misty shroud.

September Average Humidity in Heihe

This chart illustrates the average monthly humidity levels in Heihe, 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 Heihe is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%78%77%73%80%85%87%89%88%82%73%67%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Heihe

In Heihe in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Heihe.

Maximum UV Index Levels in Heihe for September

The chart shows the monthly maximum UV Index (UVI) for Heihe 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 Heihe typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47111318161515131085
Data source: Heihe 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 Heihe Compares to Other Months

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

This table compares monthly weather conditions in Heihe, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-15°C (5°F)11 mm (0.5 inches)71%moderate
February Weather-13°C (10°F)13 mm (0.5 inches)78%high
March Weather-8°C (19°F)23 mm (0.9 inches)77%extreme
April Weather-3°C (26°F)35 mm (1.4 inches)73%extreme
May Weather2°C (35°F)56 mm (2.2 inches)80%extreme
June Weather6°C (44°F)117 mm (4.6 inches)85%extreme
July Weather9°C (49°F)84 mm (3.3 inches)87%extreme
August Weather9°C (48°F)135 mm (5.3 inches)89%extreme
September Weather5°C (41°F)99 mm (3.9 inches)88%extreme
October Weather-2°C (29°F)56 mm (2.2 inches)82%very high
November Weather-10°C (14°F)16 mm (0.6 inches)73%very high
December Weather-15°C (6°F)9 mm (0.4 inches)67%moderate

Compare Heihe's Climate with Cities Worldwide