September Weather in Haishiwan, China

Last updated: August 23, 2025

In September, the average temperature in Haishiwan, China hovers around 13°C (55°F). Expect lows of 3°C (38°F) and highs reaching up to 26°C (79°F). This month sees around 96 mm (3.8 in) of precipitation spread over 17 days, contributing to an average humidity level of 76%. Prepare for a mix of comfortable warmth and occasional rain!

September Temperature in Haishiwan

In September in Haishiwan, the average temperature is 13°C (55°F). Maximum temperatures can reach 26°C (79°F), while the minimum can dip as low as 3°C (38°F). This makes it a great time to explore Haishiwan, as you can enjoy mild weather and comfortable conditions for outdoor activities.

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

The chart illustrates September temperature patterns in Haishiwan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Haishiwan, September typically has an average temperature of 13°C (55°F), with highs reaching up to 26°C (79°F) and lows dropping to around 3°C (38°F).

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

September Precipitation in Haishiwan

In Haishiwan in September, the precipitation amount is 96 mm (3.8 in) over a span of 17 days.

September Precipitation Trends in Haishiwan

The chart displays monthly precipitation patterns in Haishiwan, 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 Haishiwan, September typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 17 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 Haishiwan

In Haishiwan in September humidity is 76%. With an average temperature of 13°C (55°F), this humidity feels like a damp, heavy blanket enveloping you, making it feel cooler than it actually is, which can be quite refreshing for short excursions but may also lead to discomfort during prolonged outdoor activities.

September Average Humidity in Haishiwan

This chart illustrates the average monthly humidity levels in Haishiwan, 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 Haishiwan is approximately 76%, 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 Haishiwan

In Haishiwan in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Haishiwan.

Maximum UV Index Levels in Haishiwan for September

The chart shows the monthly maximum UV Index (UVI) for Haishiwan 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 Haishiwan typically reaches 10, which falls under the very high exposure category.

Data source: Haishiwan 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 Haishiwan Compares to Other Months

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

This table compares monthly weather conditions in Haishiwan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (17°F)	7 mm (0.3 inches)	69%	moderate
February Weather	-5°C (24°F)	8 mm (0.3 inches)	73%	moderate
March Weather	3°C (37°F)	18 mm (0.7 inches)	73%	very high
April Weather	8°C (46°F)	58 mm (2.3 inches)	74%	very high
May Weather	12°C (54°F)	78 mm (3.1 inches)	59%	extreme
June Weather	16°C (61°F)	74 mm (2.9 inches)	69%	extreme
July Weather	19°C (66°F)	95 mm (3.7 inches)	65%	extreme
August Weather	17°C (63°F)	123 mm (4.8 inches)	68%	extreme
September Weather	13°C (55°F)	96 mm (3.8 inches)	76%	very high
October Weather	6°C (44°F)	49 mm (1.9 inches)	81%	very high
November Weather	-1°C (30°F)	15 mm (0.6 inches)	75%	moderate
December Weather	-8°C (19°F)	6 mm (0.2 inches)	67%	moderate