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September Weather in Tongchang, China

Last updated: August 22, 2025

In September, the average temperature in Tongchang, China hovers around 21°C (70°F). While temperatures can dip to a pleasant 12°C (53°F), they can also peak at a warm 29°C (85°F). Expect 123 mm (4.9 in) of precipitation spread over 23 days, contributing to a notable average humidity of 87%.

September Temperature in Tongchang

In September in Tongchang, the average temperature is 21°C (70°F). Maximums can reach 29°C (85°F), while minimums can drop to as low as 12°C (53°F). This mild climate makes Tongchang an ideal destination for travelers seeking pleasant weather and comfortable conditions for outdoor activities.

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

The chart illustrates September temperature patterns in Tongchang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tongchang, September typically has an average temperature of 21°C (70°F), with highs reaching up to 29°C (85°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec535664687274727270655953
Data source: Temperature data for Tongchang 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 Tongchang

In Tongchang in September, the precipitation amount is 123 mm (4.9 in) occurring over a span of 23 days.

September Precipitation Trends in Tongchang

The chart displays monthly precipitation patterns in Tongchang, 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 Tongchang, September typically receives around 123 mm (4.9 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec3615154846141254219123722517
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tongchang

In Tongchang in September humidity is 87%. With an average temperature of 21°C (70°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities quite exhausting and requiring frequent breaks to hydrate and cool off.

September Average Humidity in Tongchang

This chart illustrates the average monthly humidity levels in Tongchang, 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 Tongchang is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec58%65%44%44%62%82%89%90%87%81%82%73%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Tongchang

In Tongchang 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 Tongchang.

Maximum UV Index Levels in Tongchang for September

The chart shows the monthly maximum UV Index (UVI) for Tongchang 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 Tongchang typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec89121314141614131297
Data source: Tongchang 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 Tongchang Compares to Other Months

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

This table compares monthly weather conditions in Tongchang, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (53°F)36 mm (1.4 inches)58%very high
February Weather13°C (56°F)15 mm (0.6 inches)65%very high
March Weather18°C (65°F)15 mm (0.6 inches)44%extreme
April Weather20°C (68°F)48 mm (1.9 inches)44%extreme
May Weather22°C (73°F)46 mm (1.8 inches)62%extreme
June Weather23°C (74°F)140 mm (5.5 inches)82%extreme
July Weather22°C (72°F)254 mm (10.0 inches)89%extreme
August Weather22°C (72°F)219 mm (8.6 inches)90%extreme
September Weather21°C (70°F)123 mm (4.9 inches)87%extreme
October Weather18°C (65°F)72 mm (2.8 inches)81%extreme
November Weather15°C (59°F)25 mm (1.0 inches)82%very high
December Weather12°C (53°F)17 mm (0.7 inches)73%high

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