September Weather in Schleswig, United States

Last updated: June 24, 2025

In Schleswig, United States, the average temperature in September hovers around 20°C (67°F). Be prepared for a range, as the mercury can dip to a chilly 4°C (39°F) or soar up to a sweltering 35°C (95°F). Expect 108 mm (4.2 in) of precipitation spread over 9 days, contributing to an average humidity of 75%.

September Temperature in Schleswig

In September in Schleswig, the average temperature is 20°C (67°F). Maximum temperatures can reach 35°C (95°F), while minimums can drop as low as 4°C (39°F). Be sure to pack layers to prepare for the diverse weather conditions while exploring this vibrant destination.

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

The chart illustrates September temperature patterns in Schleswig, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Schleswig, September typically has an average temperature of 20°C (67°F), with highs reaching up to 35°C (95°F) and lows dropping to around 4°C (39°F).

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

September Precipitation in Schleswig

In Schleswig in September, the precipitation amount is 108 mm (4.2 in) spread over 9 days.

September Precipitation Trends in Schleswig

The chart displays monthly precipitation patterns in Schleswig, 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 Schleswig, September typically receives around 108 mm (4.2 inches) of precipitation spread over approximately 9 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 Schleswig

In Schleswig in September humidity is 75%. With an average temperature of 20°C (67°F), this humidity feels like a warm, enveloping blanket that makes outdoor activities more strenuous, causing travelers to feel sticky and fatigued faster.

September Average Humidity in Schleswig

This chart illustrates the average monthly humidity levels in Schleswig, 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 Schleswig 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 Schleswig

In Schleswig in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Schleswig.

Maximum UV Index Levels in Schleswig for September

The chart shows the monthly maximum UV Index (UVI) for Schleswig 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 Schleswig typically reaches 8, which falls under the very high exposure category.

Data source: Schleswig 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 Schleswig Compares to Other Months

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

This table compares monthly weather conditions in Schleswig, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (22°F)	25 mm (1.0 inches)	80%	moderate
February Weather	-5°C (22°F)	38 mm (1.5 inches)	84%	moderate
March Weather	3°C (38°F)	78 mm (3.1 inches)	75%	moderate
April Weather	9°C (48°F)	71 mm (2.8 inches)	79%	very high
May Weather	16°C (61°F)	142 mm (5.6 inches)	74%	very high
June Weather	23°C (74°F)	122 mm (4.8 inches)	81%	extreme
July Weather	24°C (76°F)	55 mm (2.2 inches)	82%	very high
August Weather	22°C (73°F)	109 mm (4.3 inches)	80%	very high
September Weather	20°C (67°F)	108 mm (4.2 inches)	75%	very high
October Weather	10°C (51°F)	102 mm (4.0 inches)	77%	high
November Weather	3°C (37°F)	31 mm (1.2 inches)	85%	moderate
December Weather	-2°C (29°F)	40 mm (1.6 inches)	83%	low