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	64.5°F	50.7°F	44.5%	4 days (2.2 in.)	-	7 h. 57 min.
Bohinjsko Jezero	63.3°F	50.1°F	42.4%	5 days (2.5 in.)	73.2°F	8 h. 13 min.
Bovec	66.8°F	52.7°F	42.8%	4 days (2.9 in.)	-	8 h. 10 min.
Cerkno	64.6°F	50.9°F	42.8%	5 days (2.4 in.)	73.2°F	8 h. 10 min.
Dolenjske Toplice	70.5°F	53.7°F	40.6%	2 days (1.4 in.)	71.2°F	8 h. 26 min.
Isola	75.3°F	61.3°F	32.3%	2 days (1.5 in.)	73.8°F	9 h. 28 min.
Koper	75.3°F	61.3°F	32.9%	2 days (1.5 in.)	73.8°F	9 h. 24 min.
Kranjska Gora	61.4°F	50.3°F	47.3%	4 days (2.3 in.)	-	7 h. 36 min.
Ljubljana	70.9°F	55.1°F	40.7%	3 days (2.0 in.)	-	8 h. 26 min.
Maribor	70.1°F	55.2°F	38.2%	2 days (1.4 in.)	-	8 h. 45 min.
Moravske Toplice	72.6°F	57.1°F	31.7%	2 days (0.9 in.)	-	9 h. 33 min.
Otocec	72.2°F	52.3°F	38.7%	3 days (1.4 in.)	-	8 h. 40 min.
Piran	76.0°F	61.5°F	33.3%	2 days (1.5 in.)	74.1°F	9 h. 21 min.
Portoroz	76.0°F	61.5°F	32.6%	2 days (1.5 in.)	74.1°F	9 h. 26 min.
Postojna	71.0°F	56.9°F	37.0%	3 days (1.8 in.)	-	8 h. 53 min.
Rogaska Slatina	71.4°F	55.1°F	35.8%	3 days (1.4 in.)	-	9 h. 3 min.
Rogla	69.5°F	54.1°F	39.2%	3 days (1.7 in.)	-	8 h. 37 min.
Smarjeske Toplice	72.2°F	52.3°F	38.7%	3 days (1.4 in.)	-	8 h. 41 min.
Strunjan	76.0°F	61.5°F	33.0%	2 days (1.5 in.)	73.9°F	9 h. 23 min.
Terme Dobrna	71.4°F	54.0°F	37.1%	3 days (1.4 in.)	-	8 h. 52 min.
Terme Radenci	72.0°F	56.9°F	34.2%	2 days (1.5 in.)	-	9 h. 15 min.
Zrece	71.4°F	54.0°F	37.1%	3 days (1.4 in.)	-	8 h. 52 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