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	64.0°F	49.8°F	43.9%	4 days (1.9 in.)	-	8 h. 2 min.
Bohinjsko Jezero	62.7°F	48.9°F	42.7%	4 days (2.0 in.)	73.2°F	8 h. 11 min.
Bovec	66.3°F	51.5°F	43.4%	4 days (2.2 in.)	-	8 h. 6 min.
Cerkno	63.9°F	50.0°F	42.6%	4 days (1.7 in.)	73.2°F	8 h. 12 min.
Dolenjske Toplice	70.1°F	52.6°F	42.6%	2 days (1.2 in.)	71.1°F	8 h. 12 min.
Isola	74.9°F	60.0°F	34.3%	5 days (2.2 in.)	73.8°F	9 h. 14 min.
Koper	74.9°F	60.0°F	34.8%	5 days (2.2 in.)	73.6°F	9 h. 10 min.
Kranjska Gora	60.9°F	49.4°F	46.7%	4 days (1.9 in.)	-	7 h. 41 min.
Ljubljana	69.9°F	54.1°F	42.8%	3 days (1.8 in.)	-	8 h. 10 min.
Maribor	69.5°F	53.9°F	39.7%	2 days (1.3 in.)	-	8 h. 34 min.
Moravske Toplice	71.4°F	55.4°F	34.0%	2 days (1.0 in.)	-	9 h. 17 min.
Otocec	71.7°F	51.3°F	40.9%	3 days (1.3 in.)	-	8 h. 25 min.
Piran	75.6°F	60.1°F	35.0%	5 days (2.2 in.)	73.9°F	9 h. 9 min.
Portoroz	75.6°F	60.1°F	34.5%	5 days (2.2 in.)	73.9°F	9 h. 12 min.
Postojna	70.7°F	55.7°F	39.1%	5 days (2.1 in.)	-	8 h. 38 min.
Rogaska Slatina	70.6°F	54.4°F	38.5%	3 days (1.5 in.)	-	8 h. 43 min.
Rogla	68.9°F	53.0°F	39.5%	3 days (1.4 in.)	-	8 h. 36 min.
Smarjeske Toplice	71.7°F	51.3°F	40.9%	3 days (1.3 in.)	-	8 h. 25 min.
Strunjan	75.6°F	60.1°F	34.8%	5 days (2.2 in.)	73.8°F	9 h. 10 min.
Terme Dobrna	70.6°F	53.4°F	39.8%	3 days (1.5 in.)	-	8 h. 33 min.
Terme Radenci	71.5°F	55.6°F	35.6%	3 days (1.4 in.)	-	9 h. 5 min.
Zrece	70.6°F	53.4°F	39.8%	3 days (1.5 in.)	-	8 h. 33 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