September Weather in Grebastica, Croatia

Last updated: August 23, 2025

In Grebastica, Croatia, the average temperature in September hovers around 21°C (70°F), providing a delightful climate for visitors. Expect minimum temperatures to dip to 8°C (46°F), while soaring to a maximum of 33°C (92°F) on warmer days. Throughout the month, 91 mm (3.6 in) of precipitation graces the area over 8 days, contributing to an average humidity level of 69%. Whether you’re planning outdoor adventures or cozy indoor activities, this month offers a captivating blend of weather conditions!

September Temperature in Grebastica

In September in Grebastica, the average temperature is 21°C (70°F). Maximums can reach 33°C (92°F), while minimums can drop as low as 8°C (46°F). This diverse temperature range makes Grebastica an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Grebastica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grebastica, September typically has an average temperature of 21°C (70°F), with highs reaching up to 33°C (92°F) and lows dropping to around 8°C (46°F).

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

September Precipitation in Grebastica

In Grebastica in September, the total precipitation amount is 91 mm (3.6 in) over the course of 8 days.

September Precipitation Trends in Grebastica

The chart displays monthly precipitation patterns in Grebastica, 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 Grebastica, September typically receives around 91 mm (3.6 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 Grebastica

In Grebastica 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 Grebastica

This chart illustrates the average monthly humidity levels in Grebastica, 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 Grebastica 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 Grebastica

In Grebastica 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 Grebastica.

Maximum UV Index Levels in Grebastica for September

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

Data source: Grebastica 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 Grebastica Compares to Other Months

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

This table compares monthly weather conditions in Grebastica, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	79 mm (3.1 inches)	83%	low
February Weather	8°C (48°F)	91 mm (3.6 inches)	76%	moderate
March Weather	10°C (50°F)	82 mm (3.2 inches)	73%	high
April Weather	14°C (57°F)	76 mm (3.0 inches)	75%	high
May Weather	18°C (65°F)	68 mm (2.7 inches)	78%	very high
June Weather	23°C (73°F)	42 mm (1.7 inches)	75%	very high
July Weather	25°C (78°F)	25 mm (1.0 inches)	71%	very high
August Weather	26°C (79°F)	33 mm (1.3 inches)	65%	very high
September Weather	21°C (70°F)	91 mm (3.6 inches)	69%	high
October Weather	16°C (61°F)	93 mm (3.7 inches)	76%	moderate
November Weather	13°C (55°F)	196 mm (7.7 inches)	81%	moderate
December Weather	9°C (48°F)	165 mm (6.5 inches)	81%	low