September Weather in Bayi, China

Last updated: August 22, 2025

In September, the average temperature in Bayi, China is a crisp 8°C (47°F). Expect chilling lows of -3°C (28°F) and pleasant highs reaching up to 17°C (63°F). With 221 mm (8.7 in) of precipitation spread over 28 days, the air stays notably moist, boasting an average humidity of 94%. Prepare for a month that blends brisk air with a touch of wetness!

September Temperature in Bayi

In September in Bayi, the average temperature is 8°C (47°F), with maximums reaching up to 17°C (63°F) and minimums dropping as low as -3°C (28°F). It's advisable to pack layers to accommodate the varying temperatures during your travels.

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

The chart illustrates September temperature patterns in Bayi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bayi, September typically has an average temperature of 8°C (47°F), with highs reaching up to 17°C (63°F) and lows dropping to around -3°C (28°F).

Data source: Temperature data for Bayi generated using information from the Copernicus Climate Change Service.

September Precipitation in Bayi

In Bayi in September, the precipitation amount is 221 mm (8.7 in) over a period of 28 days.

September Precipitation Trends in Bayi

The chart displays monthly precipitation patterns in Bayi, 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 Bayi, September typically receives around 221 mm (8.7 inches) of precipitation spread over approximately 28 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Bayi

In Bayi in September humidity is 94%. With an average temperature of 8°C (47°F), this humidity feels like an uncomfortable damp chill, making travel less enjoyable as everything feels heavier and you find yourself constantly battling the dampness in the air.

September Average Humidity in Bayi

This chart illustrates the average monthly humidity levels in Bayi, 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 Bayi is approximately 94%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bayi

In Bayi in September, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in Bayi, you can check Hourly UV Index in Bayi.

Maximum UV Index Levels in Bayi for September

The chart shows the monthly maximum UV Index (UVI) for Bayi 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 Bayi typically reaches 17, which falls under the extreme exposure category.

Data source: Bayi 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 Bayi Compares to Other Months

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

This table compares monthly weather conditions in Bayi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-14°C (8°F)	39 mm (1.5 inches)	82%	very high
February Weather	-11°C (13°F)	73 mm (2.9 inches)	85%	extreme
March Weather	-7°C (20°F)	101 mm (4.0 inches)	70%	extreme
April Weather	-2°C (29°F)	106 mm (4.2 inches)	61%	extreme
May Weather	2°C (37°F)	173 mm (6.8 inches)	86%	extreme
June Weather	8°C (46°F)	226 mm (8.9 inches)	93%	extreme
July Weather	10°C (50°F)	301 mm (11.9 inches)	94%	extreme
August Weather	10°C (50°F)	226 mm (8.9 inches)	93%	extreme
September Weather	8°C (47°F)	221 mm (8.7 inches)	94%	extreme
October Weather	3°C (38°F)	180 mm (7.1 inches)	90%	extreme
November Weather	-7°C (20°F)	76 mm (3.0 inches)	85%	extreme
December Weather	-12°C (10°F)	49 mm (1.9 inches)	84%	very high