World Resorts Slovenia Piran Weather

Piran sea water temperature

Current sea water temperature:
+80.4°F
Minimum sea water temperature in July: 85.5°F
Maximum sea water temperature in July: 72.3°F
Average sea water temperature in July: 78.4°F

Sea water temperature for the last 10 days:

July 21 80.4°F July 16 80.4°F
July 20 81.1°F July 15 80.8°F
July 19 81.7°F July 14 80.1°F
July 18 81.7°F July 13 80.1°F
July 17 82.2°F July 12 80.1°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:
2026
2025
2024

The average sea water temperature in July of 2026 was 80.4°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.

Best time for vacation in Piran

Sunniest months:
August 23 days
July 22 days
June 20 days
Warmest months:
August 85.1 °F
July 85.0 °F
June 80.5 °F
Warmest sea temp:
August 78.7 °F
July 78.5 °F
September 74.2 °F
Coldest months:
January 45.5 °F
December 48.0 °F
February 48.6 °F
Rainiest months:
November 6 days
May 6 days
September 6 days
Windiest months:
February 6.4 mph
March 6.3 mph
November 6.1 mph

Piran on a weather map

Piran
+75°F
SW 12 mph
Feels like: +77°F
Precip.: 36%
Places in Slovenia:
Name
°F
+55°F
+64°F
+75°F
+75°F
+61°F
+70°F
+68°F
+75°F
+75°F
+81°F
+61°F
24 Hours Forecast
Piran
Local time: 18:40
July 21, tuesday
2100
66°F
SW
11 mph
July 22, wednesday
0000
64°F
SW
11 mph
0300
66°F
W
12 mph
0600
64°F
W
11 mph
0900
73°F
W
12 mph
1200
79°F
W
9 mph
1500
82°F
S
2 mph
1800
79°F
E
7 mph
Units of measurement: °C / °F