Cagliari — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Cagliari (Italy). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Cagliari help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Cagliari in the Mediterranean Sea today is 29°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating.
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 Over the Last 30 Days
Water temperature in Cagliari has risen over the last week and month. Currently, the sea water at this location is slightly warmer than average for this day in previous years.
According to our forecast, Water temperature in Cagliari will be 26.9°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUL 14 | 27.0°C | 25.8°C | |
| JUL 15 | 26.8°C | 25.5°C | |
| JUL 16 | 27.4°C | 25.8°C | |
| JUL 17 | 27.4°C | 26.5°C | |
| JUL 18 | 27.5°C | 25.8°C | |
| JUL 19 | 28.4°C | 26.0°C | |
| JUL 20 | 28.5°C | 25.8°C | |
| JUL 21 | 28.3°C | 26.3°C | |
| JUL 22 | 28.7°C | 26.3°C | 28.7°C |
| JUL 23 | 25.5°C | 28.4°C | |
| JUL 24 | 25.3°C | 28.2°C | |
| JUL 25 | 25.5°C | 27.9°C | |
| JUL 26 | 25.8°C | 27.7°C | |
| JUL 27 | 25.8°C | 27.4°C | |
| JUL 28 | 26.0°C | 27.1°C | |
| JUL 29 | 26.3°C | 26.9°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
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 to enhance accuracy.
Water temperature data for this location 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.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Cagliari, the capital of Sardinia on Italy’s southern coast, enjoys a Mediterranean climate that strongly influences sea temperatures. During winter months (December–February) surface water typically sits around 13–15 °C, offering cool conditions for hardy swimmers or those used to cold-water dips. In spring (March–May) the sea warms gradually, moving from roughly 15 °C in March to about 19–20 °C by late May. Summer (June–August) brings the warmest seas, with averages generally between 22 and 27 °C, peaking in July and August, while autumn (September–November) sees a slow cooling from around 24–22 °C in September to about 19–20 °C by November. These seasonal ranges reflect the sheltered southern position of Cagliari and the clear, slow-changing waters of the Mediterranean.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 13°C | 15°C | 17°C |
| February | 12°C | 14°C | 16°C |
| March | 12°C | 15°C | 16°C |
| April | 13°C | 16°C | 17°C |
| May | 15°C | 18°C | 22°C |
| June | 19°C | 21°C | 26°C |
| July | 22°C | 25°C | 29°C |
| August | 22°C | 26°C | 29°C |
| September | 20°C | 26°C | 28°C |
| October | 18°C | 23°C | 26°C |
| November | 16°C | 21°C | 23°C |
| December | 13°C | 17°C | 20°C |
* Click on a month to view detailed water temperature data.
Cagliari: Weather Forecast
July 22
July 23
July 24
July 25
Location, Beaches & Local Information
Nearby Beaches & Facilities
Spiaggia Della Diga
Spiaggia Del Poetto Quartu Sant'Elena
Le Palmette Beach Club - Cagliari
Il Lido Di Cagliari
Malibu
Spiaggia Di Sant'Elia
Cala Bernat
Spiaggia Del Canaletto
Stabilimento Balneare D'Aquila
Swimming Conditions
Swimming and beach holidays in and around Cagliari are popular because the coastline offers a variety of options and reliable summer warmth. The city’s long sandy stretches, smaller rocky coves and nearshore reefs provide easy, family-friendly swimming where water becomes deep gradually, plus sheltered spots good for snorkeling and basic diving. Lifeguarded areas and seaside facilities are most active in summer months when water temperatures are comfortably warm for long swims and water sports. Outside the high season, water can still be pleasant for shorter swims in late spring and early autumn, but many visitors prefer July and August for sustained swimming without wetsuits; cooler months require greater caution and appropriate gear. Boat excursions from the harbor also open access to quieter bays and clearer waters for snorkeling and exploration.