The most detailed information about the water temperature in Portoroz in Adriatic Sea (Piran Pirano, Slovenia). Forecast of changes in water temperature for the next 10 days. Statistics by months for recent years. Information about the neighboring resorts. Weather forecast in Portoroz for a week.
Water temperature in Portoroz right now
data updated 35 minutes ago58°F
yesterday: 58°F
a week ago: 58°F
Trend: slow rise
Today water temperature in Portoroz is 58.3°F. Water of this temperature is considered cold enough. Dipping or immersion in such water is possible only for a short time. Staying in such water for more than two hours can lead to loss of consciousness. In any case, the general weather is also important. So, the air temperature at the same time will reach 49°F.
Analysis and forecast
The water temperature today roughly corresponds to the average value on this day in recent years. Its value has rise both over the past 20 days and over the past week. Exactly a year ago, on this day, the water temperature in this location was 55°F. Water temperature range in Portoroz in April is from 50 to 62 degrees.
According to our forecast, the water temperature in Portoroz will slowly rise for at least the next 10 days and reach a value of 60°F.
Table of water temperature values in Portoroz
| Day | Fact* | Average** | Forecast*** |
| Apr 18 | 16.0°C | 14.3°C | |
| Apr 19 | 15.8°C | 14.3°C | |
| Apr 20 | 15.2°C | 13.8°C | |
| Apr 21 | 15.5°C | 14.3°C | |
| Apr 22 | 14.9°C | 13.8°C | |
| Apr 23 | 15.3°C | 14.0°C | |
| Apr 24 | 14.9°C | 14.0°C | |
| Apr 25 | 14.6°C | 14.0°C | |
| Apr 26 | 14.0°C | 14.6°C | |
| Apr 27 | 14.3°C | 14.9°C | |
| Apr 28 | 14.5°C | 15.1°C | |
| Apr 29 | 14.3°C | 14.9°C | |
| Apr 30 | 14.5°C | 15.1°C | |
| May 1 | 14.3°C | 14.9°C | |
| May 2 | 14.8°C | 15.4°C |
** Average - Average water temperature on this day in past years
*** Forecast - Our forecast for the water temperature
Actual nearshore temperatures may vary by several degrees from the indicated values. This is noticeable after heavy rain or after prolonged periods of strong winds. Some downstream winds cause cold, deep waters to replace surface waters that have been warmed by the sun.
To develop a forecast, we use our own mathematical model, which takes into account the current change in water temperature, historical data and the main weather trends, wind strength and direction, air temperature in each specific region. We also take into account data for other resorts in Slovenia.
Annual graph of average water temperature change in Portoroz
Water temperature in Portoroz by month
Portoroz located in the northern hemisphere, at latitude 45 degrees. The comfortable water temperature for swimming is set here in May, almost always only at the end of the month. During a year in Portoroz there are 133 days of swimming. In general, the swimming season ends in October. Average annual water temperature on the coast in Portoroz is 63°F, by the seasons: in winter 52°F, in spring 57°F, in summer 75°F, in autumn 67°F. Minimum water temperature (48°F) in Portoroz it happens in January, maximum (81°F) in August.
You can find out detailed data on how the water temperature in Portoroz changes in each specific month:
Portoroz: general information and map
Neighboring cities and resorts
| City | Water* | Distance** |
| Lucija | 58°C | 1km |
| Strunjan | 58°C | 2km |
| Piran | 58°C | 2km |
| Dobrava | 58°C | 3km |
| Kanegra | 59°C | 4km |
| Jagodje | 58°C | 5km |
| Crveni Vrh | 58°C | 5km |
| Izola | 58°C | 6km |
| Savudrija | 58°C | 7km |
| Basanija | 58°C | 8km |
| Katoro | 59°C | 8km |
| Zambratija | 58°C | 8km |
** Straight line distance in kilometers
The warmest water today in Slovenia recorded in Koper, its value is 59°F. Lowest - in Plaza Lazaret, there water temperature now 58°F. Average water temperature in the country today - 58°F.
Water temperature data in Portoroz and neighboring towns and resorts collected from various sources, using buoys, using satellite maps of sea, river and lake surfaces of the NOAA agency.
We use data from various local authorities in each specific location of the world to more accurately reflect temperature values.
The nearest airport is located in a 4 kilometers. This is Portoroz (POW) airport. We have no information as to whether it is valid and what flights it receives or sends.
Portoroz: weather forecast
The weather forecast is shown in local time in Portoroz
5km/hhumidity: 83%, clouds: 77%
7km/hhumidity: 85%, clouds: 82%
8km/hhumidity: 86%, clouds: 80%
8km/hhumidity: 87%, clouds: 64%
6km/hhumidity: 80%, clouds: 60%
9km/hhumidity: 68%, clouds: 90%
9km/hhumidity: 66%, clouds: 94%
6km/hhumidity: 67%, clouds: 87%
2km/hhumidity: 85%, clouds: 59%
7km/hhumidity: 89%, clouds: 20%
9km/hhumidity: 89%, clouds: 24%
7km/hhumidity: 87%, clouds: 46%
6km/hhumidity: 85%, clouds: 70%
8km/hhumidity: 70%, clouds: 54%
15km/hhumidity: 67%, clouds: 51%
10km/hhumidity: 69%, clouds: 18%
2km/hhumidity: 86%, clouds: 24%
6km/hhumidity: 88%, clouds: 100%
6km/hhumidity: 84%, clouds: 93%
7km/hhumidity: 86%, clouds: 100%
4km/hhumidity: 80%, clouds: 100%
3km/hhumidity: 63%, clouds: 100%
10km/hhumidity: 59%, clouds: 100%
8km/hhumidity: 68%, clouds: 100%
3km/hhumidity: 85%, clouds: 100%
5km/hhumidity: 87%, clouds: 100%
6km/hhumidity: 87%, clouds: 100%
6km/hhumidity: 86%, clouds: 100%
3km/hhumidity: 72%, clouds: 94%
3km/hhumidity: 53%, clouds: 69%
7km/hhumidity: 48%, clouds: 44%
5km/hhumidity: 55%, clouds: 4%
3km/hhumidity: 72%, clouds: 2%
6km/hhumidity: 78%, clouds: 0%
6km/hhumidity: 79%, clouds: 0%
7km/hhumidity: 77%, clouds: 0%
5km/hhumidity: 72%, clouds: 0%
