Portoroz Weather: August
 |
Average Day Temperature: | 88.9°F |
|
Average Night Temperature: | 68.4°F |
|
Sea Water Temperature: | 81.8°F |
|
Number of Sunny Days: | 23 days |
| Sunshine Hours: | 13.3 - 14.7 hours | |
|
Number of Rainy Days: | 4 days |
| Precipitation Totals: | 2.5 in | |
| detailed information | ||
forecast
| Portoroz |
Temperature
| Portoroz |
Air Temperature in August, °F
The highest day temperature in August 2025 was 103°F. The lowest night temperature was 60°F. The average values for day and night temperatures during August were 86.8°F и 68.1°F respectivly.
Portoroz Water Sea Temperature in August, °F
The average sea surface temperature in August 2025 for Portoroz was 80.3°F. The maximum and minimum values were 77.2°F and 82.8°F respectively.
Most of the days in August are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in August, in
Precipitation total in August for Portoroz is 2.5 in. It makes august the least rainy month of the year.
The average wind speed in August is 5.1 mph. This value is relatively stable throughout the year.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Portoroz in August is 11.1 hours.
Portoroz on the Weather Map
| Bohinjsko Jezero |  |
+32 |
| Cerkno |  |
+44 |
| Dolenjske Toplice | |
+36 |
| Isola |  |
+44 |
| Koper | |
+44 |
| Kranjska Gora | |
+32 |
| Ljubljana | |
+38 |
| Maribor | |
+38 |
| Moravske Toplice | |
+40 |
| Piran | |
+44 |
| Portoroz | |
+44 |
| Rogaska Slatina | |
+38 |
| Strunjan | |
+44 |
| Terme Radenci | |
+38 |
| Zrece | |
+38 |
| 0900 |  |
44°F | W 4 mph |
| 1200 | |
50°F | SW 5 mph |
| 1500 | |
48°F | SW 6 mph |
| 1800 |  |
44°F | SW 7 mph |
| 2100 | |
38°F | SW 6 mph |
| 0000 | |
38°F | SW 6 mph |
| 0300 | |
42°F | SW 6 mph |
| 0600 | |
46°F | SW 6 mph |