September Weather in Klis, Croatia

Last updated: August 23, 2025

In September, the average temperature in Klis, Croatia is a pleasant 21°C (70°F), making it an ideal time to explore. Expect minimums of 11°C (52°F) and maximums reaching 29°C (84°F). During this month, precipitation totals about 102 mm (4.0 in) over 8 days, while average humidity sits comfortably at 69%. Perfect weather for outdoor adventures!

September Temperature in Klis

In September in Klis, the average temperature is 21°C (70°F). The maximum can reach 29°C (84°F) and the minimum can be as low as 11°C (52°F). This mild climate makes Klis an ideal destination for outdoor activities and sightseeing during this month.

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

The chart illustrates September temperature patterns in Klis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Klis, September typically has an average temperature of 21°C (70°F), with highs reaching up to 29°C (84°F) and lows dropping to around 11°C (52°F).

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

September Precipitation in Klis

In Klis in September, the precipitation amount is 102 mm (4.0 in) over the course of 8 days.

September Precipitation Trends in Klis

The chart displays monthly precipitation patterns in Klis, 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 Klis, September typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 8 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 Klis

In Klis in September humidity is 69%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making outdoor activities enjoyable but requiring occasional breaks for hydration and shade during your travels.

September Average Humidity in Klis

This chart illustrates the average monthly humidity levels in Klis, 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 Klis is approximately 69%, 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 Klis

In Klis in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Klis.

Maximum UV Index Levels in Klis for September

The chart shows the monthly maximum UV Index (UVI) for Klis 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 Klis typically reaches 7, which falls under the high exposure category.

Data source: Klis 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 Klis Compares to Other Months

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

This table compares monthly weather conditions in Klis, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	106 mm (4.2 inches)	83%	low
February Weather	9°C (48°F)	112 mm (4.4 inches)	76%	moderate
March Weather	10°C (50°F)	96 mm (3.8 inches)	73%	high
April Weather	13°C (55°F)	85 mm (3.4 inches)	75%	high
May Weather	17°C (63°F)	75 mm (2.9 inches)	78%	very high
June Weather	22°C (71°F)	35 mm (1.4 inches)	75%	very high
July Weather	24°C (75°F)	26 mm (1.0 inches)	71%	very high
August Weather	25°C (77°F)	28 mm (1.1 inches)	65%	very high
September Weather	21°C (70°F)	102 mm (4.0 inches)	69%	high
October Weather	17°C (62°F)	111 mm (4.4 inches)	76%	moderate
November Weather	13°C (56°F)	257 mm (10.1 inches)	81%	moderate
December Weather	9°C (49°F)	233 mm (9.2 inches)	81%	low