September Weather in Sihu, China

Last updated: August 22, 2025

In Sihu, China, the average temperature in September is a pleasant 23°C (74°F). You'll experience a minimum of 12°C (54°F), while highs can reach up to 33°C (92°F). Be prepared for some rainfall, as the precipitation amount averages 81 mm (3.2 in) over 6 days. With an average humidity of 65%, it’s the perfect time to enjoy the vibrant atmosphere of the season!

September Temperature in Sihu

In September in Sihu, the average temperature is 23°C (74°F). Maximum can reach 33°C (92°F) and minimum can be as low as 12°C (54°F). It's a great time to visit Sihu for pleasant weather and outdoor activities.

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

The chart illustrates September temperature patterns in Sihu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sihu, September typically has an average temperature of 23°C (74°F), with highs reaching up to 33°C (92°F) and lows dropping to around 12°C (54°F).

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

September Precipitation in Sihu

In Sihu in September, the total precipitation amount is 81 mm (3.2 in), which is recorded over a span of 6 days.

September Precipitation Trends in Sihu

The chart displays monthly precipitation patterns in Sihu, 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 Sihu, September typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 6 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 Sihu

In Sihu in September, humidity is 65%. With an average temperature of 23°C (74°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat challenging but still enjoyable with the right planning.

September Average Humidity in Sihu

This chart illustrates the average monthly humidity levels in Sihu, 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 Sihu is approximately 65%, 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 Sihu

In Sihu 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 Sihu.

Maximum UV Index Levels in Sihu for September

The chart shows the monthly maximum UV Index (UVI) for Sihu 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 Sihu typically reaches 9, which falls under the very high exposure category.

Data source: Sihu 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 Sihu Compares to Other Months

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

This table compares monthly weather conditions in Sihu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	25 mm (1.0 inches)	52%	moderate
February Weather	4°C (39°F)	24 mm (0.9 inches)	60%	moderate
March Weather	10°C (50°F)	28 mm (1.1 inches)	70%	high
April Weather	15°C (60°F)	36 mm (1.4 inches)	78%	very high
May Weather	21°C (70°F)	59 mm (2.3 inches)	74%	very high
June Weather	25°C (78°F)	126 mm (5.0 inches)	74%	very high
July Weather	27°C (81°F)	277 mm (10.9 inches)	84%	very high
August Weather	27°C (81°F)	211 mm (8.3 inches)	81%	very high
September Weather	23°C (74°F)	81 mm (3.2 inches)	65%	very high
October Weather	16°C (61°F)	24 mm (0.9 inches)	72%	high
November Weather	10°C (50°F)	26 mm (1.0 inches)	81%	moderate
December Weather	3°C (37°F)	14 mm (0.6 inches)	71%	moderate