Sardinia Water Temperature
Updated Tue 10:07 (Europe/Rome)
Italy · Forecast updated Sep 22, 2026, 10:07 UTC
Current Sea Temperature
26.3°C
79.3°F
Warm water
Valid Sep 22, 2026, 10:07 (Europe/Rome). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
2.5°C above
The typical September average is 23.8°C (74.8°F) from the historical baseline.
Recent trend
Cooling by 0.6°C
Seven-day average: 26.7°C, versus 27.4°C in the prior seven days.
What to wear
Warm water
Most people are comfortable in swimwear or a light rash guard.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions or replace the snorkel forecast.
Sardinia has both sheltered coves and open coast. Use the monthly profile as an island guide, then check the exact beach forecast because wind and waves can change the feel of the water.
Typical Sea Temperature Over the Year
In the historical baseline for Sardinia, typical monthly averages range from about 14.1°C (57.4°F) in February to 26.1°C (79.0°F) in August.
Over the past 30 days, the average sea temperature in Sardinia has been 27.5°C.
Historical baseline (full year)
Northern Hemisphere. Summer is generally June–August; winter is December–February.
Typical monthly sea-surface temperature near Sardinia, calculated from hourly observations for 2023–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 14.6–15.3°C | 15.0°C / 59.0°F |
| February | 13.6–14.6°C | 14.1°C / 57.4°F |
| March | 14.0–14.8°C | 14.5°C / 58.1°F |
| April | 15.1–16.1°C | 15.6°C / 60.1°F |
| May | 17.9–18.6°C | 18.2°C / 64.8°F |
| June | 21.5–23.5°C | 22.4°C / 72.3°F |
| July | 24.3–25.8°C | 25.1°C / 77.2°F |
| August | 25.4–27.1°C | 26.1°C / 79.0°F |
| September | 23.5–24.2°C | 23.8°C / 74.8°F |
| October | 20.6–23.0°C | 21.9°C / 71.4°F |
| November | 19.0–19.8°C | 19.4°C / 66.9°F |
| December | 16.1–16.6°C | 16.4°C / 61.5°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (41.13, 9.63). Each month is the mean of yearly monthly means; the range is the lowest and highest of those yearly monthly means. Open-Meteo methodology.
Water temperature by month
Each month uses the 2023–2025 baseline. The range is the lowest and highest yearly monthly mean, not an hourly extreme.
Sardinia in January
Typical January water temperature near Sardinia is 15.0°C (59.0°F), with yearly monthly means from 14.6–15.3°C.
Sardinia in February
Typical February water temperature near Sardinia is 14.1°C (57.4°F), with yearly monthly means from 13.6–14.6°C.
Sardinia in March
Typical March water temperature near Sardinia is 14.5°C (58.1°F), with yearly monthly means from 14.0–14.8°C.
Sardinia in April
Typical April water temperature near Sardinia is 15.6°C (60.1°F), with yearly monthly means from 15.1–16.1°C.
Sardinia in May
Typical May water temperature near Sardinia is 18.2°C (64.8°F), with yearly monthly means from 17.9–18.6°C.
Sardinia in June
Typical June water temperature near Sardinia is 22.4°C (72.3°F), with yearly monthly means from 21.5–23.5°C.
Sardinia in July
Typical July water temperature near Sardinia is 25.1°C (77.2°F), with yearly monthly means from 24.3–25.8°C.
Sardinia in August
Typical August water temperature near Sardinia is 26.1°C (79.0°F), with yearly monthly means from 25.4–27.1°C.
Sardinia in September
Typical September water temperature near Sardinia is 23.8°C (74.8°F), with yearly monthly means from 23.5–24.2°C.
Sardinia in October
Typical October water temperature near Sardinia is 21.9°C (71.4°F), with yearly monthly means from 20.6–23.0°C.
Sardinia in November
Typical November water temperature near Sardinia is 19.4°C (66.9°F), with yearly monthly means from 19.0–19.8°C.
Sardinia in December
Typical December water temperature near Sardinia is 16.4°C (61.5°F), with yearly monthly means from 16.1–16.6°C.
Forecast archive (growing)
These values come from hourly forecasts SnorkelForecast has stored. They cover only months with records and do not replace the historical baseline.
| Month | Min | Average | Max |
|---|---|---|---|
| June | 20.2°C / 68.4°F | 23.8°C / 74.8°F | 28.6°C / 83.5°F |
| July | 25.9°C / 78.6°F | 27.3°C / 81.2°F | 28.6°C / 83.5°F |
| August | 27.1°C / 80.8°F | 28.2°C / 82.7°F | 29.7°C / 85.5°F |
| September | 25.6°C / 78.1°F | 27.1°C / 80.8°F | 28.2°C / 82.8°F |
Partial coverage: 4 calendar months with records. Profile calculated from 2731 hourly forecast records across 4 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Sardinia
Mediterranean island ringed by white sand and the clear coves of the Maddalena.
- Area
- Sardinia
Sardinia Water Temperature: Common Questions
What is the water temperature in Sardinia today?
The current sea surface temperature near Sardinia is 26.3°C (79.3°F). Over the last 30 days, the average has been 27.5°C.
When is the water warmest in Sardinia?
The water is typically warmest in August, at around 26.1°C (79.0°F) in the 2023–2025 historical baseline.
When is the water coldest in Sardinia?
The water is typically coldest in February, at around 14.1°C (57.4°F) in the same historical baseline. A wetsuit is usually recommended during this period.
Can you swim in Sardinia today?
At 26.3°C, the water is usually comfortable for swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Sardinia.
View Snorkel Forecast →