September Weather in Petrich, Bulgaria

Last updated: August 22, 2025

In September, the average temperature in Petrich, Bulgaria is a comfortable 19°C (67°F). Visitors can expect a range between a minimum of 2°C (35°F) and a maximum of 33°C (92°F), making it a month of diverse weather. With an average precipitation of 32 mm (1.3 in) spread over 4 days, and an average humidity of 57%, it's a great time to explore the area's natural beauty while being prepared for occasional showers!

September Temperature in Petrich

In September in Petrich, the average temperature is 19°C (67°F), with maximums hitting 33°C (92°F) and minimums dropping to 2°C (35°F). This varied climate makes it a great time to explore Petrich, so be sure to pack for both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Petrich, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Petrich, September typically has an average temperature of 19°C (67°F), with highs reaching up to 33°C (92°F) and lows dropping to around 2°C (35°F).

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

September Precipitation in Petrich

In Petrich in September, the total precipitation amount is 32 mm (1.3 in), accumulated over a period of 4 days.

September Precipitation Trends in Petrich

The chart displays monthly precipitation patterns in Petrich, 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 Petrich, September typically receives around 32 mm (1.3 inches) of precipitation spread over approximately 4 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 Petrich

In Petrich in September humidity is 57%. With an average temperature of 19°C (67°F), this humidity feels like a warm embrace, making it an ideal time for exploring the area's hidden gems, but travelers should be prepared for a slight stickiness that may encourage leisurely breaks in shaded spots.

September Average Humidity in Petrich

This chart illustrates the average monthly humidity levels in Petrich, 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 Petrich is approximately 57%, 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 Petrich

In Petrich 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 Petrich.

Maximum UV Index Levels in Petrich for September

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

Data source: Petrich 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 Petrich Compares to Other Months

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

This table compares monthly weather conditions in Petrich, 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 (35°F)	68 mm (2.7 inches)	88%	low
February Weather	5°C (41°F)	64 mm (2.5 inches)	83%	moderate
March Weather	7°C (45°F)	92 mm (3.6 inches)	81%	high
April Weather	12°C (53°F)	69 mm (2.7 inches)	71%	very high
May Weather	17°C (62°F)	73 mm (2.9 inches)	74%	very high
June Weather	20°C (69°F)	70 mm (2.8 inches)	63%	extreme
July Weather	23°C (74°F)	50 mm (2.0 inches)	60%	very high
August Weather	24°C (75°F)	31 mm (1.2 inches)	47%	very high
September Weather	19°C (67°F)	32 mm (1.3 inches)	57%	very high
October Weather	13°C (57°F)	56 mm (2.2 inches)	76%	high
November Weather	9°C (48°F)	76 mm (3.0 inches)	85%	moderate
December Weather	4°C (40°F)	111 mm (4.4 inches)	87%	low