September Weather in Gacko, Bosnia and Herzegovina

Last updated: August 22, 2025

In September, the average temperature in Gacko, Bosnia and Herzegovina hovers around 15°C (60°F), with a minimum of 1°C (33°F) and a maximum reaching up to 29°C (85°F). Visitors can expect 86 mm (3.4 in) of precipitation spread over 10 days, accompanied by an average humidity of 65%. Be prepared for a variety of weather conditions!

September Temperature in Gacko

In September in Gacko, the average temperature is 15°C (60°F). Maximums can reach 29°C (85°F), while minimums can dip as low as 1°C (33°F). This makes Gacko an ideal destination for travelers seeking a mix of mild and warm weather.

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

The chart illustrates September temperature patterns in Gacko, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gacko, September typically has an average temperature of 15°C (60°F), with highs reaching up to 29°C (85°F) and lows dropping to around 1°C (33°F).

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

September Precipitation in Gacko

In Gacko in September, the precipitation amount is 86 mm (3.4 in) over the course of 10 days.

September Precipitation Trends in Gacko

The chart displays monthly precipitation patterns in Gacko, 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 Gacko, September typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 10 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 Gacko

In Gacko in September, humidity is 65%. With an average temperature of 15°C (60°F), this humidity feels like a warm blanket wrapped around you, making it a bit muggy for traveling but still comfortable enough to enjoy outdoor activities.

September Average Humidity in Gacko

This chart illustrates the average monthly humidity levels in Gacko, 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 Gacko is approximately 65%, 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 Gacko

In Gacko 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 Gacko.

Maximum UV Index Levels in Gacko for September

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

Data source: Gacko 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 Gacko Compares to Other Months

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

This table compares monthly weather conditions in Gacko, 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)	110 mm (4.3 inches)	88%	low
February Weather	2°C (36°F)	153 mm (6.0 inches)	82%	moderate
March Weather	4°C (40°F)	141 mm (5.6 inches)	79%	high
April Weather	8°C (47°F)	118 mm (4.7 inches)	75%	high
May Weather	13°C (55°F)	132 mm (5.2 inches)	74%	very high
June Weather	17°C (63°F)	95 mm (3.8 inches)	66%	very high
July Weather	19°C (67°F)	71 mm (2.8 inches)	59%	very high
August Weather	20°C (69°F)	58 mm (2.3 inches)	53%	very high
September Weather	15°C (60°F)	86 mm (3.4 inches)	65%	very high
October Weather	10°C (51°F)	110 mm (4.3 inches)	78%	high
November Weather	6°C (44°F)	197 mm (7.7 inches)	85%	moderate
December Weather	2°C (35°F)	216 mm (8.5 inches)	86%	low