September Weather in Dalan, China

Last updated: August 22, 2025

In September, the average temperature in Dalan, China is a warm 28°C (82°F), with daily highs reaching up to 35°C (95°F) and lows dipping to 19°C (67°F). Expect 161 mm (6.3 in) of precipitation spread over about 20 days, and a humidity level that hovers around 75%. Get ready for a blend of warmth and moisture!

September Temperature in Dalan

In September in Dalan, the average temperature is 28°C (82°F). Maximums can reach 35°C (95°F), while minimums can drop to as low as 19°C (67°F). This pleasant climate makes it an ideal destination for outdoor activities and exploration.

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

The chart illustrates September temperature patterns in Dalan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dalan, September typically has an average temperature of 28°C (82°F), with highs reaching up to 35°C (95°F) and lows dropping to around 19°C (67°F).

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

September Precipitation in Dalan

In Dalan in September, the precipitation amount is 161 mm (6.3 in) spread over 20 days.

September Precipitation Trends in Dalan

The chart displays monthly precipitation patterns in Dalan, 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 Dalan, September typically receives around 161 mm (6.3 inches) of precipitation spread over approximately 20 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 Dalan

In Dalan in September humidity is 75%. With an average temperature of 28°C (82°F), this humidity feels like a warm, enveloping embrace that can quickly leave travelers feeling sticky and fatigued. It can make outdoor activities challenging, as sweat doesn’t evaporate easily, leading to a constant struggle between comfort and the desire to explore.

September Average Humidity in Dalan

This chart illustrates the average monthly humidity levels in Dalan, 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 Dalan is approximately 75%, 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 Dalan

In Dalan in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Dalan.

Maximum UV Index Levels in Dalan for September

The chart shows the monthly maximum UV Index (UVI) for Dalan 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 Dalan typically reaches 12, which falls under the extreme exposure category.

Data source: Dalan 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 Dalan Compares to Other Months

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

This table compares monthly weather conditions in Dalan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	15°C (60°F)	27 mm (1.1 inches)	64%	high
February Weather	16°C (61°F)	45 mm (1.8 inches)	68%	very high
March Weather	20°C (68°F)	84 mm (3.3 inches)	73%	extreme
April Weather	22°C (73°F)	105 mm (4.2 inches)	71%	extreme
May Weather	26°C (79°F)	176 mm (6.9 inches)	79%	extreme
June Weather	28°C (82°F)	330 mm (13.0 inches)	77%	extreme
July Weather	29°C (84°F)	157 mm (6.2 inches)	88%	extreme
August Weather	28°C (83°F)	265 mm (10.4 inches)	88%	extreme
September Weather	28°C (82°F)	161 mm (6.3 inches)	75%	extreme
October Weather	24°C (76°F)	84 mm (3.3 inches)	65%	very high
November Weather	21°C (70°F)	27 mm (1.0 inches)	64%	very high
December Weather	16°C (61°F)	18 mm (0.7 inches)	69%	high