Table below will help you to find the best place for your vacation in Slovenia in December. 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	38.3°F	31.0°F	54.0%	3 days (1.9 in.)	-	4 h. 58 min.
Bohinjsko Jezero	35.0°F	31.7°F	57.9%	5 days (2.9 in.)	54.5°F	4 h. 38 min.
Bovec	41.2°F	35.0°F	56.8%	4 days (2.5 in.)	-	4 h. 44 min.
Cerkno	40.9°F	35.9°F	63.6%	4 days (2.0 in.)	54.5°F	4 h. 9 min.
Dolenjske Toplice	44.7°F	38.4°F	63.9%	2 days (1.4 in.)	56.1°F	4 h. 9 min.
Isola	49.6°F	44.5°F	67.0%	4 days (1.5 in.)	55.2°F	3 h. 53 min.
Koper	49.6°F	44.4°F	66.5%	4 days (1.5 in.)	55.0°F	3 h. 56 min.
Kranjska Gora	34.5°F	31.6°F	57.2%	5 days (3.1 in.)	-	4 h. 41 min.
Ljubljana	41.1°F	36.6°F	68.0%	4 days (1.9 in.)	-	3 h. 47 min.
Maribor	42.1°F	34.4°F	58.3%	3 days (1.7 in.)	-	4 h. 36 min.
Moravske Toplice	41.8°F	36.3°F	57.3%	1 day (1.0 in.)	-	4 h. 41 min.
Otocec	43.4°F	36.4°F	65.0%	2 days (1.6 in.)	-	4 h. 3 min.
Piran	49.1°F	40.0°F	66.9%	3 days (1.5 in.)	55.6°F	3 h. 54 min.
Portoroz	49.1°F	39.9°F	66.2%	3 days (1.5 in.)	55.6°F	3 h. 57 min.
Postojna	41.4°F	36.7°F	72.5%	4 days (1.8 in.)	-	3 h. 23 min.
Rogaska Slatina	42.4°F	33.2°F	51.5%	2 days (1.3 in.)	-	5 h. 12 min.
Rogla	40.8°F	34.5°F	51.0%	1 day (1.1 in.)	-	5 h. 13 min.
Smarjeske Toplice	43.4°F	36.4°F	65.0%	2 days (1.6 in.)	-	4 h. 3 min.
Strunjan	49.1°F	40.0°F	66.7%	3 days (1.5 in.)	55.4°F	3 h. 55 min.
Terme Dobrna	42.7°F	34.1°F	52.1%	2 days (1.2 in.)	-	5 h. 8 min.
Terme Radenci	42.3°F	35.0°F	54.8%	1 day (1.0 in.)	-	4 h. 54 min.
Zrece	42.3°F	35.6°F	51.0%	1 day (1.0 in.)	-	5 h. 13 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.

Winter weather

Spring weather

Summer weather

Autumn weather

Name

°F

Bled