World Resorts Slovenia Piran Weather

Piran sea water temperature

Current sea water temperature:
+54.0°F
Minimum sea water temperature in April: 64.4°F
Maximum sea water temperature in April: 49.6°F
Average sea water temperature in April: 56.0°F

Sea water temperature for the last 10 days:

April 6 54.0°F April 1 52.7°F
April 5 53.2°F March 31 52.3°F
April 4 52.9°F March 30 51.8°F
April 3 53.1°F March 29 52.0°F
April 2 53.4°F March 28 52.7°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.

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 80.4 °F
Warmest sea temp:
August 78.7 °F
July 78.4 °F
September 74.2 °F
Coldest months:
January 45.5 °F
December 48.0 °F
February 48.6 °F
Rainiest months:
May 7 days
November 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
+64°F
E 2 mph
Feels like: +64°F
Precip.: 0%
Places in Slovenia:
Name
°F
+59°F
+61°F
+64°F
+64°F
+59°F
+68°F
+63°F
+64°F
+64°F
+61°F
+64°F
+57°F
24 Hours Forecast
Piran
Local time: 17:43
April 06, monday
1800
64°F
E
2 mph
2100
54°F
W
2 mph
April 07, tuesday
0000
52°F
W
2 mph
0300
50°F
W
2 mph
0600
50°F
W
3 mph
0900
61°F
W
2 mph
1200
68°F
E
5 mph
1500
68°F
E
6 mph
Units of measurement: °C / °F