Current sea water temperature:
+81.5°F
| Minimum sea water temperature in September: | 82.9°F |
| Maximum sea water temperature in September: | 68.9°F |
| Average sea water temperature in September: | 74.2°F |
| more information | |
14 days
forecast
forecast
| Piran |
monthly
weather
weather
| Piran |
Sea water temperature for the last 10 days:
| September 1 | 81.5°F | August 27 | 79.7°F |
| August 31 | 81.3°F | August 26 | 80.6°F |
| August 30 | 81.5°F | August 25 | 80.1°F |
| August 29 | 81.0°F | August 24 | 80.4°F |
| August 28 | 80.4°F | August 23 | 81.7°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 81.7°F. The highest and lowest sea temperatures during the month were 84.6°F and 79.7°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 80.0°F. The highest and lowest sea temperatures during the month were 84.0°F and 77.7°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
September
September
| Piran |
Best time for vacation in Piran
Piran on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Piran
Local time: 10:40
September 01, tuesday
1200
84°F
SW
4 mph
4 mph
1500
88°F
S
4 mph
4 mph
1800
82°F
S
5 mph
5 mph
2100
72°F
W
4 mph
4 mph
September 02, wednesday
0000
70°F
W
6 mph
6 mph
0300
68°F
W
6 mph
6 mph
0600
66°F
W
6 mph
6 mph
0900
73°F
W
5 mph
5 mph
