Current Sea Water Temperature:
+50.2°F
| Maximum Sea Water Temperature in January: | 55.6°F |
| Minimum Sea Water Temperature in January: | 46.6°F |
| Average water temperature in January: | 51.2°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| January 13 | 50.2°F | January 08 | 52.6°F |
| January 12 | 50.4°F | January 07 | 53.6°F |
| January 11 | 50.8°F | January 06 | 53.6°F |
| January 10 | 51.2°F | January 05 | 53.8°F |
| January 09 | 51.2°F | January 04 | 53.6°F |
When is the Warmest Sea for Strunjan?
According to our data for the last three years for Strunjan the highest average sea water temperature was in August, July and September.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Strunjan was 80.1°F. The maximum and minimum values were 77.2°F and 82.4°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Strunjan was 82.1°F. The maximum and minimum values were 79.6°F and 85.4°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Strunjan was 78.0°F. The maximum and minimum values were 75.6°F and 80.0°F respectively.
Slovenia Resorts:
NAME
F°
| Bled |  |
+22 |
| Bohinjsko Jezero | |
+22 |
| Cerkno |  |
+36 |
| Dolenjske Toplice |  |
+28 |
| Isola | |
+36 |
| Koper | |
+36 |
| Kranjska Gora | |
+22 |
| Ljubljana | |
+30 |
| Maribor | |
+22 |
| Moravske Toplice | |
+24 |
| Piran | |
+36 |
| Portoroz | |
+36 |
| Rogaska Slatina | |
+28 |
| Rogla | |
+28 |
| Strunjan | |
+36 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Strunjan
Local time: 01:20
14 jan, wednesday
| 0300 |  |
36°F | SE 1 mph |
| 0600 | |
36°F | E 1 mph |
| 0900 | |
36°F | NE 1 mph |
| 1200 |  |
42°F | NE 2 mph |
| 1500 | |
42°F | E 1 mph |
| 1800 | |
42°F | NW 1 mph |
| 2100 | |
38°F | NW 1 mph |
15 jan, thursday
| 0000 | |
38°F | NW 1 mph |