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 22°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience.
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 rose over the last 30 days but fell over the last week. Currently, the sea water temperature at this location matches the average for this day in previous years.
According to our forecast, Water temperature in Cagliari will be 21.9°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 |
|---|---|---|---|
| JUN 2 | 21.4°C | 20.8°C | |
| JUN 3 | 21.8°C | 20.8°C | |
| JUN 4 | 22.3°C | 20.8°C | |
| JUN 5 | 22.4°C | 21.3°C | |
| JUN 6 | 21.7°C | 21.3°C | |
| JUN 7 | 21.9°C | 21.5°C | |
| JUN 8 | 21.8°C | 20.8°C | |
| JUN 9 | 21.5°C | 21.3°C | |
| JUN 10 | 22.2°C | 21.3°C | 22.2°C |
| JUN 11 | 20.5°C | 22.2°C | |
| JUN 12 | 21.0°C | 22.1°C | |
| JUN 13 | 21.0°C | 22.1°C | |
| JUN 14 | 21.5°C | 22.0°C | |
| JUN 15 | 21.5°C | 22.0°C | |
| JUN 16 | 21.8°C | 22.0°C | |
| JUN 17 | 21.8°C | 21.9°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
June 11
June 12
June 13
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.