September Weather in Jiantang, China

Last updated: August 23, 2025

In September, the average temperature in Jiantang, China hovers around 12°C (54°F). You'll experience a range, with minimums dipping to 2°C (35°F) and maximums reaching 20°C (68°F). Expect significant precipitation with an average of 161 mm (6.3 in) spread over 27 days, contributing to an average humidity of 91%. Prepare for a wet and mild month ahead!

September Temperature in Jiantang

In September in Jiantang, the average temperature is 12°C (54°F). Maximums can reach 20°C (68°F) and minimums can be as low as 2°C (35°F). It's a great time for travelers to enjoy mild weather while exploring the sights.

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

The chart illustrates September temperature patterns in Jiantang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jiantang, September typically has an average temperature of 12°C (54°F), with highs reaching up to 20°C (68°F) and lows dropping to around 2°C (35°F).

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

September Precipitation in Jiantang

In Jiantang in September, the precipitation amount is 161 mm (6.3 in) spread over 27 days.

September Precipitation Trends in Jiantang

The chart displays monthly precipitation patterns in Jiantang, 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 Jiantang, September typically receives around 161 mm (6.3 inches) of precipitation spread over approximately 27 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Jiantang

In Jiantang in September, humidity is 91%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket wrapping around you, making even short walks feel heavy and sluggish, which can be quite challenging for travelers looking to explore the area comfortably.

September Average Humidity in Jiantang

This chart illustrates the average monthly humidity levels in Jiantang, 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 Jiantang is approximately 91%, 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 Jiantang

In Jiantang in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Jiantang.

Maximum UV Index Levels in Jiantang for September

The chart shows the monthly maximum UV Index (UVI) for Jiantang 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 Jiantang typically reaches 15, which falls under the extreme exposure category.

Data source: Jiantang 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 Jiantang Compares to Other Months

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

This table compares monthly weather conditions in Jiantang, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (24°F)	26 mm (1.0 inches)	79%	very high
February Weather	-3°C (27°F)	43 mm (1.7 inches)	81%	extreme
March Weather	0°C (33°F)	51 mm (2.0 inches)	57%	extreme
April Weather	5°C (41°F)	59 mm (2.3 inches)	59%	extreme
May Weather	9°C (48°F)	97 mm (3.8 inches)	84%	extreme
June Weather	13°C (56°F)	127 mm (5.0 inches)	89%	extreme
July Weather	13°C (56°F)	258 mm (10.2 inches)	92%	extreme
August Weather	13°C (56°F)	251 mm (9.9 inches)	92%	extreme
September Weather	12°C (54°F)	161 mm (6.3 inches)	91%	extreme
October Weather	8°C (47°F)	79 mm (3.1 inches)	90%	extreme
November Weather	2°C (37°F)	21 mm (0.8 inches)	88%	very high
December Weather	-1°C (30°F)	14 mm (0.5 inches)	83%	high