Current sea water temperature:
+56.7°F
| Minimum sea water temperature in December: | 61.0°F |
| Maximum sea water temperature in December: | 50.4°F |
| Average sea water temperature in December: | 55.7°F |
| more information | |
14 days
forecast
forecast
| Piran |
monthly
weather
weather
| Piran |
Sea water temperature for the last 10 days:
| December 14 | 56.7°F | December 9 | 57.6°F |
| December 13 | 56.5°F | December 8 | 57.9°F |
| December 12 | 55.9°F | December 7 | 57.6°F |
| December 11 | 56.1°F | December 6 | 57.7°F |
| December 10 | 56.8°F | December 5 | 57.4°F |
Monthly sea water temperature, °F
When is the warmest sea in Piran?
Based on the data about daily sea water temperature for the last three years the warmest sea in Piran was noticed in August, July and September.
Monthly Sea Temperatures in Piran, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 77.2°F. The highest and lowest sea temperatures during the month were 79.5°F and 74.5°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 79.0°F. The highest and lowest sea temperatures during the month were 81.9°F and 76.8°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 75.3°F. The highest and lowest sea temperatures during the month were 77.2°F and 73.0°F.
current
weather
weather
| Piran |
weather in
December
December
| Piran |
Best time for vacation in Piran
Piran on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Piran
Local time: 07:44
December 15, monday
0900
39°F
NW
4 mph
4 mph
1200
52°F
NE
2 mph
2 mph
1500
52°F
NE
2 mph
2 mph
1800
46°F
W
2 mph
2 mph
2100
41°F
W
3 mph
3 mph
December 16, tuesday
0000
41°F
W
4 mph
4 mph
0300
41°F
W
4 mph
4 mph
0600
41°F
W
4 mph
4 mph
