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Portoroz
Water Temperature in the Adriatic Sea in Portoroz, Slovenia: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Portoroz in Slovenia, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Portoroz
17.5°C
TODAY
17.8°C
YESTERDAY
17.2°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Adriatic Sea in Portoroz is 17.5°C. The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart for Adriatic Sea in Portoroz Over the Last 30 Days
The water temperature in Portoroz today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Portoroz will remain nearly unchanged in the coming days, its value will be 17.6°C.
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across Slovenia to enhance accuracy.
Water temperature data for Portoroz and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| May 6 | 17.2°C | 16.3°C | |
| May 7 | 16.9°C | 16.0°C | |
| May 8 | 17.2°C | 16.0°C | |
| May 9 | 16.7°C | 16.0°C | |
| May 10 | 16.9°C | 16.5°C | |
| May 11 | 17.3°C | 16.8°C | |
| May 12 | 17.8°C | 16.8°C | |
| May 13 | 17.8°C | 16.8°C | |
| May 14 | 17.0°C | 17.4°C | |
| May 15 | 17.5°C | 17.4°C | |
| May 16 | 17.8°C | 17.4°C | |
| May 17 | 17.3°C | 17.4°C | |
| May 18 | 18.0°C | 17.5°C | |
| May 19 | 17.8°C | 17.5°C | |
| May 20 | 17.8°C | 17.5°C | |
| May 21 | 18.0°C | 17.6°C |
Sea Temperature in Portoroz Throughout the Year
Throughout the year, the sea temperature in Portoroz exceeds 77°F (25°C) for 67 days, exceeds 72°F (22°C) for 96 days, and exceeds 64°F (18°C) for 167 days.
Below is the annual chart of sea temperature changes in the Adriatic Sea in Portoroz.
January
| Minimum | Average | Maximum |
|---|---|---|
| 6°C | 10°C | 14°C |
February
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 10°C | 12°C |
March
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 11°C | 14°C |
April
| Minimum | Average | Maximum |
|---|---|---|
| 10°C | 13.5°C | 17°C |
May
| Minimum | Average | Maximum |
|---|---|---|
| 13°C | 18°C | 23°C |
June
| Minimum | Average | Maximum |
|---|---|---|
| 18°C | 22.5°C | 27°C |
July
| Minimum | Average | Maximum |
|---|---|---|
| 22°C | 25°C | 28°C |
August
| Minimum | Average | Maximum |
|---|---|---|
| 22°C | 25.5°C | 29°C |
September
| Minimum | Average | Maximum |
|---|---|---|
| 19°C | 23.5°C | 28°C |
October
| Minimum | Average | Maximum |
|---|---|---|
| 13°C | 18.5°C | 24°C |
November
| Minimum | Average | Maximum |
|---|---|---|
| 14°C | 17°C | 20°C |
December
| Minimum | Average | Maximum |
|---|---|---|
| 10°C | 13.5°C | 17°C |
Monthly Water Temperature Histogram for Adriatic Sea in Portoroz
You can explore detailed data on how the water temperature in Portoroz varies each month:
What Beaches Are There In and Around Portoroz?
Portoroz Beach
Portoroz Beach is a 5-stars sandy beach, is located directly in Portoroz. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Portoroz Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Glavni Pomol
Glavni Pomol is a 5-stars sandy beach, is located directly in Portoroz. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Portoroz Beach
Portoroz Beach is a 1-stars sandy beach, is located directly in Portoroz.
Beach Fiesa
Beach Fiesa is a 5-stars sandy beach, is located directly in Portoroz. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Beach Fiesa is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Lucija Beach
Lucija Beach is a 5-stars sandy beach, is located directly in Portoroz. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Fiesa Beach
Fiesa Beach is a 5-stars sandy beach, is located directly in Portoroz. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Salinera Beach
Salinera Beach is a 5-stars sandy beach, is located directly in Portoroz. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Beach Lucija
Beach Lucija is a 5-stars sandy beach, is located directly in Portoroz. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There are lifeguards on the beach. There is parking. There are cafés. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Pacug Beach
Pacug Beach is a 5-stars sandy beach, is located directly in Portoroz. There are lifeguards on the beach. There is parking. There are restrooms. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Fornace
Fornace is a 3-stars sandy beach, located in a 2 km (1 miles) radius of Portoroz. There is parking. There are cafés. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Fornace Beach
Fornace Beach is a 4-stars sandy beach, located in a 2 km (1 miles) radius of Portoroz. There is parking. There are restrooms. There are cafés. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Beach Tartini
Beach Tartini is a 4-stars sandy beach, located in a 2 km (1 miles) radius of Portoroz. There is parking. There are cafés. Beach Tartini is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Beach Strunjan
Beach Strunjan is a 2-stars sandy beach, located in a 2 km (1 miles) radius of Portoroz. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards.
Bernardin Beach
Bernardin Beach is a 5-stars sandy beach, located in a 2 km (1 miles) radius of Portoroz. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Preseren Beach
Preseren Beach is a 4-stars sandy beach, located in a 3 km (2 miles) radius of Portoroz. There is parking. There are cafés. Preseren Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Portoroz
Portoroz is a 3-stars sandy beach, located in a 3 km (2 miles) radius of Portoroz. There is parking. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Mesecev Zaliv Beach
Mesecev Zaliv Beach is a 2-stars sandy beach, located in a 3 km (2 miles) radius of Portoroz. There is parking.
Moon Bay
Moon Bay is a 2-stars sandy beach, located in a 3 km (2 miles) radius of Portoroz. Snorkeling is possible.
Tartini Beach
Tartini Beach is a 4-stars sandy beach, located in a 3 km (2 miles) radius of Portoroz. There is parking. There are restrooms. There are cafés. Tartini Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Beach Crveni Vrh
Beach Crveni Vrh is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Portoroz.
Portoroz Weather
MAY 14
12°C / 20°C
scattered clouds: 25-50%humidity: 67% | wind: 2 km/h
MAY 15
11°C / 20°C
overcast clouds: 85-100%humidity: 53% | wind: 6 km/h
MAY 16
13°C / 20°C
overcast clouds: 85-100%humidity: 54% | wind: 2 km/h
MAY 17
12°C / 20°C
overcast clouds: 85-100%humidity: 67% | wind: 2 km/h
Sea Temperature in the Adriatic Sea in Portoroz: General Trends and Swimming Opportunities
The Municipality of Piran, Slovenia, features a Mediterranean climate characterized by warm, dry summers and mild, wet winters. Due to its coastal location, it enjoys sea breezes, persistent sunshine, and retains relatively stable temperatures throughout the year.
Portoroz is located in Europe in the Northern Hemisphere at a latitude of 46 degrees, along the shores of the Adriatic Sea. Portoroz lies within the Municipality of Piran in Slovenia.
The average annual daytime air temperature in Portoroz is 17°C (63°F), with the average nighttime temperature being 11°C (52°F). The highest average daily temperature occurs in July, reaching 28°C (82°F), while the lowest is in January at 7°C (44°F). As for nighttime temperatures, the minimum average temperature of 3°C (37°F) is recorded in February, and the maximum is in July, reaching 20°C (69°F).
According to historical data, Portoroz experiences 105 rainy days per year, which accounts for 29 percent of all days in the year. On average, there are 9 rainy days each month. The wettest month is June, with 10 rainy days and 85 mm (3.4 inches) of precipitation, while the driest month is January, which typically has 7 rainy days and only 61 mm (2.4 inches) of precipitation.
The average annual water temperature in Adriatic Sea in Portoroz is 17°C (63°F). In January, the water reaches its lowest point of the year at 6°C (43°F), while in August, it peaks at 29°C (84°F). The months suitable for comfortable beach vacations and swimming in the Adriatic Sea are July, and August. During this period, the water temperature stays above 20°C (68°F) and can reach up to 29°C (84°F) on some days.
Geographical Location of Portoroz
Nearby Cities
Frequently Asked Questions About Portoroz and its Water Temperatures
What is the current sea temperature in Portoroz?
The water temperature today in the Adriatic Sea in Portoroz is 64°F (17.5°C).
In which months is the water temperature in Portoroz comfortable for swimming?
The water temperature in the Adriatic Sea in Portoroz is comfortable for swimming and beach vacations in July, and August.
What is the water temperature in Portoroz during the winter?
The water temperature in the Adriatic Sea in Portoroz during the winter ranges from 6°C to 17°C (43°F to 63°F).
What is the water temperature in Portoroz during the spring?
The water temperature in the Adriatic Sea in Portoroz during the spring ranges from 8°C to 23°C (46°F to 73°F).
What is the water temperature in Portoroz during the summer?
The water temperature in the Adriatic Sea in Portoroz during the summer ranges from 18°C to 29°C (64°F to 84°F).
What is the water temperature in Portoroz during the fall?
The water temperature in the Adriatic Sea in Portoroz during the fall ranges from 13°C to 28°C (55°F to 82°F).
Is it possible to swim in the sea in Portoroz at any time of the year?
The Adriatic Sea in Portoroz is quite cool, and swimming is only possible in May, June, July, August, September, and October when the water temperature reaches 21°C (70°F).
Is Portoroz a popular tourist destination for beach vacations?
Portoroz is a highly popular tourist destination for beach vacations, attracting large numbers of visitors every year due to its beautiful coastline, warm waters, and excellent resort facilities.
What sea temperatures can I expect in Portoroz in the next month?
In June, the water temperature in the Adriatic Sea in Portoroz will range between 64°F (18°C) and 81°F (27°C)