September Weather in Grize, Slovenia

Last updated: August 27, 2025

In Grize, Slovenia, the average temperature in September is a mild 16°C (61°F). Expect nighttime lows dipping to 2°C (36°F) and daytime highs soaring up to 30°C (87°F). During this month, you can anticipate about 127 mm (5.0 in) of precipitation spread over 12 days, contributing to an average humidity of 65%.

September Temperature in Grize

In September in Grize, the average temperature is 16°C (61°F). Maximums can reach 30°C (87°F) and minimums can be as low as 2°C (36°F). This makes it a great time for travelers to enjoy a mix of mild weather and more energetic days.

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

The chart illustrates September temperature patterns in Grize, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grize, September typically has an average temperature of 16°C (61°F), with highs reaching up to 30°C (87°F) and lows dropping to around 2°C (36°F).

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

September Precipitation in Grize

In Grize in September, the precipitation amount is 127 mm (5.0 in) occurring over the course of 12 days.

September Precipitation Trends in Grize

The chart displays monthly precipitation patterns in Grize, 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 Grize, September typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 12 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 Grize

In Grize in September, humidity is 65%. With an average temperature of 16°C (61°F), this humidity feels like a gentle warmth enveloping you, making it ideal for exploring the sights without overwhelming discomfort.

September Average Humidity in Grize

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

In Grize in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Grize, you can refer to this Hourly UV Index in Grize.

Maximum UV Index Levels in Grize for September

The chart shows the monthly maximum UV Index (UVI) for Grize 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 Grize typically reaches 6, which falls under the high exposure category.

Data source: Grize 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 Grize Compares to Other Months

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

This table compares monthly weather conditions in Grize, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	37 mm (1.5 inches)	90%	low
February Weather	3°C (38°F)	64 mm (2.5 inches)	84%	moderate
March Weather	6°C (43°F)	57 mm (2.2 inches)	78%	moderate
April Weather	10°C (51°F)	80 mm (3.2 inches)	73%	high
May Weather	15°C (58°F)	142 mm (5.6 inches)	71%	very high
June Weather	20°C (68°F)	82 mm (3.2 inches)	73%	very high
July Weather	21°C (70°F)	121 mm (4.8 inches)	70%	very high
August Weather	21°C (70°F)	104 mm (4.1 inches)	60%	very high
September Weather	16°C (61°F)	127 mm (5.0 inches)	65%	high
October Weather	11°C (52°F)	71 mm (2.8 inches)	84%	moderate
November Weather	6°C (43°F)	98 mm (3.9 inches)	89%	moderate
December Weather	2°C (35°F)	86 mm (3.4 inches)	89%	low