September Weather in Gac, Poland

Last updated: August 27, 2025

In September, the average temperature in Gac, Poland hovers around 14°C (58°F). Expect fluctuating conditions, with minimums dropping to 1°C (35°F) and maximums soaring to 28°C (83°F). With an average precipitation of 71 mm (2.8 in) spread over 11 days, and a humidity level of 71%, it's advisable to be prepared for a mix of weather as you explore.

September Temperature in Gac

In September in Gac, the average temperature is 14°C (58°F). Maximums can reach 28°C (83°F), while minimums can drop as low as 1°C (35°F). Be sure to pack layers to enjoy the fluctuating weather during your travels.

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

The chart illustrates September temperature patterns in Gac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gac, September typically has an average temperature of 14°C (58°F), with highs reaching up to 28°C (83°F) and lows dropping to around 1°C (35°F).

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

September Precipitation in Gac

In Gac in September, the precipitation amount is 71 mm (2.8 in) distributed over 11 days.

September Precipitation Trends in Gac

The chart displays monthly precipitation patterns in Gac, 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 Gac, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 11 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 Gac

In Gac in September humidity is 71%. With an average temperature of 14°C (58°F), this humidity feels like a damp embrace, making it essential for travelers to pack light, breathable clothing and stay hydrated while exploring the sights.

September Average Humidity in Gac

This chart illustrates the average monthly humidity levels in Gac, 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 Gac is approximately 71%, 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 Gac

In Gac in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Gac.

Maximum UV Index Levels in Gac for September

The chart shows the monthly maximum UV Index (UVI) for Gac 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 Gac typically reaches 5, which falls under the moderate exposure category.

Data source: Gac 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 Gac Compares to Other Months

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

This table compares monthly weather conditions in Gac, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	43 mm (1.7 inches)	92%	low
February Weather	0°C (32°F)	43 mm (1.7 inches)	90%	low
March Weather	3°C (37°F)	42 mm (1.6 inches)	87%	moderate
April Weather	8°C (47°F)	40 mm (1.6 inches)	76%	moderate
May Weather	13°C (56°F)	77 mm (3.0 inches)	58%	high
June Weather	19°C (67°F)	77 mm (3.0 inches)	56%	high
July Weather	19°C (67°F)	90 mm (3.5 inches)	59%	very high
August Weather	19°C (66°F)	82 mm (3.2 inches)	60%	high
September Weather	14°C (58°F)	71 mm (2.8 inches)	71%	moderate
October Weather	10°C (49°F)	67 mm (2.6 inches)	86%	moderate
November Weather	5°C (41°F)	36 mm (1.4 inches)	90%	low
December Weather	1°C (33°F)	54 mm (2.1 inches)	93%	low