September Weather in Janow, Poland

Last updated: August 27, 2025

In September, the average temperature in Janow, Poland is a pleasant 14°C (57°F). Expect a minimum of 0°C (32°F) and a maximum reaching 28°C (82°F), perfect for diverse activities. Be prepared for some rain, with 75 mm (3.0 in) of precipitation over approximately 10 days. The average humidity sits at a comfortable 72%, making it an inviting time to explore the beauty of the region.

September Temperature in Janow

In September in Janow, the average temperature is 14°C (57°F). Maximums can reach 28°C (82°F), and minimums can be as low as 0°C (32°F). Travelers should be prepared for a range of temperatures and pack accordingly to enjoy their visit.

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

The chart illustrates September temperature patterns in Janow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Janow, September typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (82°F) and lows dropping to around 0°C (32°F).

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

September Precipitation in Janow

In Janow in September, the precipitation amount is 75 mm (3.0 in) spread over a duration of 10 days.

September Precipitation Trends in Janow

The chart displays monthly precipitation patterns in Janow, 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 Janow, September typically receives around 75 mm (3.0 inches) of precipitation spread over approximately 10 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 Janow

In Janow in September humidity is 72%. With an average temperature of 14°C (57°F), this humidity feels like a damp embrace, making outdoor activities slightly uncomfortable and requiring careful planning to stay hydrated and enjoy your travels.

September Average Humidity in Janow

This chart illustrates the average monthly humidity levels in Janow, 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 Janow is approximately 72%, 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 Janow

In Janow 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 Janow.

Maximum UV Index Levels in Janow for September

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

Data source: Janow 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 Janow Compares to Other Months

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

This table compares monthly weather conditions in Janow, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	44 mm (1.7 inches)	93%	low
February Weather	-1°C (31°F)	40 mm (1.6 inches)	90%	low
March Weather	2°C (37°F)	41 mm (1.6 inches)	88%	moderate
April Weather	7°C (46°F)	45 mm (1.8 inches)	77%	moderate
May Weather	13°C (55°F)	77 mm (3.0 inches)	59%	high
June Weather	19°C (66°F)	58 mm (2.3 inches)	59%	very high
July Weather	19°C (66°F)	103 mm (4.1 inches)	60%	high
August Weather	18°C (65°F)	93 mm (3.7 inches)	60%	high
September Weather	14°C (57°F)	75 mm (3.0 inches)	72%	moderate
October Weather	9°C (49°F)	64 mm (2.5 inches)	88%	moderate
November Weather	4°C (40°F)	41 mm (1.6 inches)	91%	low
December Weather	0°C (33°F)	57 mm (2.2 inches)	93%	low