World Resorts Slovenia Cerkno Weather

Cerkno sea water temperature

Current sea water temperature:
+51.3°F
Minimum sea water temperature in December: 59.0°F
Maximum sea water temperature in December: 49.8°F
Average sea water temperature in December: 54.4°F

Sea water temperature for the last 10 days:

December 29 51.3°F December 24 53.4°F
December 28 51.8°F December 23 53.8°F
December 27 51.3°F December 22 54.0°F
December 26 52.7°F December 21 54.0°F
December 25 54.1°F December 20 53.2°F

When is the warmest sea in Cerkno?

Based on the data about daily sea water temperature for the last three years the warmest sea in Cerkno was noticed in August, July and September.

Monthly Sea Temperatures in Cerkno, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 76.1°F. The highest and lowest sea temperatures during the month were 77.7°F and 73.4°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 77.4°F. The highest and lowest sea temperatures during the month were 79.9°F and 75.0°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 73.6°F. The highest and lowest sea temperatures during the month were 75.6°F and 71.1°F.

Best time for vacation in Cerkno

Sunniest months:
August 15 days
December 13 days
July 13 days
Warmest months:
August 74.0 °F
July 73.7 °F
June 70.2 °F
Warmest sea temp:
August 77.8 °F
July 77.5 °F
September 73.3 °F
Coldest months:
January 34.5 °F
February 37.0 °F
December 37.5 °F
Rainiest months:
May 13 days
July 12 days
June 11 days
Windiest months:
February 4.3 mph
March 4.2 mph
April 4.1 mph

Cerkno on a weather map

Cerkno
+34°F
SW 2 mph
Feels like: +34°F
Precip.: 0%
Places in Slovenia:
Name
°F
+30°F
+36°F
+36°F
+30°F
+34°F
+25°F
+36°F
+36°F
+30°F
+36°F
+30°F
+34°F
24 Hours Forecast
Cerkno
Local time: 22:00
December 30, tuesday
0000
32°F
W
2 mph
0300
32°F
W
3 mph
0600
34°F
W
4 mph
0900
36°F
SW
6 mph
1200
37°F
W
14 mph
1500
34°F
W
14 mph
1800
28°F
W
12 mph
2100
27°F
W
9 mph
Units of measurement: °C / °F