September Weather in Harts, United States

Last updated: June 24, 2025

In Harts, United States, the average temperature in September is 21°C (71°F). Expect a minimum of 8°C (46°F) and a maximum of 35°C (96°F) during this time. With 104 mm (4.1 in) of precipitation spread over about 9 days, you may want to bring an umbrella. The average humidity hovers around 68%, adding to the atmospheric charm of the season.

September Temperature in Harts

In September in Harts, the average temperature is 21°C (71°F). Maximum temperatures can reach 35°C (96°F), while minimum temperatures can drop as low as 8°C (46°F). It's advisable to pack for both warm and cool conditions when traveling to Harts this month.

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

The chart illustrates September temperature patterns in Harts, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harts, September typically has an average temperature of 21°C (71°F), with highs reaching up to 35°C (96°F) and lows dropping to around 8°C (46°F).

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

September Precipitation in Harts

In Harts in September, the precipitation amount is 104 mm (4.1 in) over the course of 9 days.

September Precipitation Trends in Harts

The chart displays monthly precipitation patterns in Harts, 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 Harts, September typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 9 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 Harts

In Harts in September, humidity is 68%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, making traveling a bit sticky but also inviting for leisurely strolls and outdoor adventures.

September Average Humidity in Harts

This chart illustrates the average monthly humidity levels in Harts, 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 Harts is approximately 68%, 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 Harts

In Harts 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 Harts.

Maximum UV Index Levels in Harts for September

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

Data source: Harts 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 Harts Compares to Other Months

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

This table compares monthly weather conditions in Harts, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (37°F)	101 mm (4.0 inches)	87%	moderate
February Weather	5°C (42°F)	161 mm (6.3 inches)	87%	moderate
March Weather	9°C (48°F)	127 mm (5.0 inches)	86%	high
April Weather	13°C (56°F)	132 mm (5.2 inches)	84%	very high
May Weather	19°C (66°F)	143 mm (5.6 inches)	83%	very high
June Weather	22°C (72°F)	163 mm (6.4 inches)	83%	very high
July Weather	25°C (77°F)	122 mm (4.8 inches)	79%	very high
August Weather	24°C (75°F)	119 mm (4.7 inches)	66%	very high
September Weather	21°C (71°F)	104 mm (4.1 inches)	68%	very high
October Weather	16°C (61°F)	119 mm (4.7 inches)	78%	high
November Weather	8°C (46°F)	78 mm (3.1 inches)	89%	moderate
December Weather	5°C (42°F)	128 mm (5.0 inches)	86%	moderate