Table below will help you to find the best place for your vacation in Slovenia in September. Find the place with less rains and more sun. We also provide information about sea water temperature for marine resort.

Place name	Air temp day / night		Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Bled	61.2°F	49.7°F	57.2%	6 days (3.3 in.)	-	6 h. 21 min.
Bohinjsko Jezero	61.3°F	49.9°F	56.3%	7 days (3.4 in.)	73.2°F	6 h. 27 min.
Bovec	64.6°F	52.5°F	54.4%	7 days (3.8 in.)	-	6 h. 42 min.
Cerkno	65.4°F	54.2°F	52.7%	7 days (3.5 in.)	73.2°F	6 h. 55 min.
Dolenjske Toplice	70.6°F	52.8°F	48.8%	3 days (1.6 in.)	71.2°F	7 h. 24 min.
Isola	74.0°F	60.7°F	43.8%	3 days (2.1 in.)	73.9°F	8 h. 2 min.
Koper	74.0°F	60.7°F	43.8%	3 days (2.1 in.)	73.8°F	8 h. 1 min.
Kranjska Gora	61.2°F	49.7°F	57.0%	6 days (3.3 in.)	-	6 h. 22 min.
Ljubljana	68.9°F	55.1°F	52.9%	5 days (2.8 in.)	-	6 h. 54 min.
Maribor	68.8°F	55.9°F	47.7%	4 days (2.2 in.)	-	7 h. 32 min.
Moravske Toplice	70.2°F	56.9°F	44.9%	2 days (1.3 in.)	-	7 h. 54 min.
Otocec	70.6°F	52.8°F	48.7%	3 days (1.6 in.)	-	7 h. 25 min.
Piran	74.0°F	60.7°F	44.0%	3 days (2.1 in.)	74.1°F	8 h. 0 min.
Portoroz	74.0°F	60.7°F	43.8%	3 days (2.1 in.)	74.1°F	8 h. 2 min.
Postojna	66.2°F	52.4°F	52.5%	3 days (2.3 in.)	-	6 h. 56 min.
Rogaska Slatina	69.6°F	54.2°F	50.3%	4 days (1.9 in.)	-	7 h. 13 min.
Rogla	67.7°F	54.2°F	52.3%	4 days (2.2 in.)	-	6 h. 58 min.
Smarjeske Toplice	70.6°F	52.8°F	48.6%	3 days (1.6 in.)	-	7 h. 25 min.
Strunjan	74.0°F	60.7°F	43.9%	3 days (2.1 in.)	74.1°F	8 h. 1 min.
Terme Dobrna	69.6°F	54.2°F	50.4%	4 days (1.9 in.)	-	7 h. 12 min.
Terme Radenci	68.8°F	55.9°F	47.9%	4 days (2.2 in.)	-	7 h. 31 min.
Zrece	69.6°F	54.2°F	50.4%	4 days (1.9 in.)	-	7 h. 12 min.

* Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

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Summer weather

Autumn weather

Name

°F

Bled