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September Weather in Caikouji, China

Last updated: August 22, 2025

In September, the average temperature in Caikouji, China is a comfortable 16°C (61°F). Expect a range from a cool 5°C (42°F) to a warm 29°C (84°F). Be prepared for some wet days, as precipitation averages around 85 mm (3.4 in) across 10 days, accompanied by an average humidity level of 73%.

September Temperature in Caikouji

In September in Caikouji, the average temperature is 16°C (61°F). The maximum can reach 29°C (84°F), while the minimum can drop as low as 5°C (42°F). This makes it an ideal time for travelers to enjoy a diverse range of outdoor activities, from warm afternoons to cooler evenings.

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

The chart illustrates September temperature patterns in Caikouji, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caikouji, September typically has an average temperature of 16°C (61°F), with highs reaching up to 29°C (84°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec253043536169726961483726
Data source: Temperature data for Caikouji 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 Caikouji

In Caikouji in September, the precipitation amount is 85 mm (3.4 in) over the course of 10 days.

September Precipitation Trends in Caikouji

The chart displays monthly precipitation patterns in Caikouji, 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 Caikouji, September typically receives around 85 mm (3.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec713194243641031538557175
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Caikouji

In Caikouji in September, humidity is 73%. With an average temperature of 16°C (61°F), this humidity feels like a warm, sticky embrace that can make traveling slightly uncomfortable, prompting you to seek shade and stay hydrated while exploring the sights.

September Average Humidity in Caikouji

This chart illustrates the average monthly humidity levels in Caikouji, 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 Caikouji is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec60%66%68%73%58%65%59%60%73%77%74%69%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Caikouji

In Caikouji in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Caikouji.

Maximum UV Index Levels in Caikouji for September

The chart shows the monthly maximum UV Index (UVI) for Caikouji 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 Caikouji typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec45710121212119753
Data source: Caikouji 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 Caikouji Compares to Other Months

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

This table compares monthly weather conditions in Caikouji, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)7 mm (0.3 inches)60%moderate
February Weather-1°C (30°F)13 mm (0.5 inches)66%moderate
March Weather6°C (43°F)19 mm (0.7 inches)68%high
April Weather12°C (53°F)42 mm (1.7 inches)73%very high
May Weather16°C (62°F)43 mm (1.7 inches)58%extreme
June Weather20°C (69°F)64 mm (2.5 inches)65%extreme
July Weather22°C (73°F)103 mm (4.1 inches)59%extreme
August Weather21°C (70°F)153 mm (6.0 inches)60%extreme
September Weather16°C (61°F)85 mm (3.4 inches)73%very high
October Weather9°C (48°F)57 mm (2.2 inches)77%high
November Weather3°C (38°F)17 mm (0.7 inches)74%moderate
December Weather-3°C (26°F)5 mm (0.2 inches)69%moderate

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