Medes Islands Water Temperature
Updated Tue 14:56 (Europe/Madrid)
Spain · Forecast updated Sep 22, 2026, 14:56 UTC
Current Sea Temperature
26.1°C
79.0°F
Warm water
Valid Sep 22, 2026, 14:56 (Europe/Madrid). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
3.5°C above
The typical September average is 22.6°C (72.7°F) from the historical baseline.
Recent trend
Warming by 0.4°C
Seven-day average: 25.0°C, versus 24.6°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.
Typical Sea Temperature Over the Year
In the historical baseline for Medes Islands, typical monthly averages range from about 13.5°C (56.3°F) in February to 24.9°C (76.8°F) in August.
Over the past 30 days, the average sea temperature in Medes Islands has been 25.1°C.
Historical baseline (full year)
Northern Hemisphere. Summer is generally June–August; winter is December–February.
Typical monthly sea-surface temperature near Medes Islands, calculated from hourly observations for 2023–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 13.4–14.6°C | 14.0°C / 57.2°F |
| February | 13.5–13.5°C | 13.5°C / 56.3°F |
| March | 13.5–14.0°C | 13.7°C / 56.7°F |
| April | 14.4–14.9°C | 14.6°C / 58.3°F |
| May | 16.9–17.6°C | 17.2°C / 63.0°F |
| June | 20.1–22.0°C | 21.1°C / 70.0°F |
| July | 22.8–24.9°C | 24.0°C / 75.2°F |
| August | 24.1–25.7°C | 24.9°C / 76.8°F |
| September | 22.3–22.8°C | 22.6°C / 72.7°F |
| October | 19.1–21.5°C | 20.1°C / 68.2°F |
| November | 17.2–18.2°C | 17.6°C / 63.7°F |
| December | 14.5–16.0°C | 15.2°C / 59.4°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (42.04, 3.29). 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.
Medes Islands in January
Typical January water temperature near Medes Islands is 14.0°C (57.2°F), with yearly monthly means from 13.4–14.6°C.
Medes Islands in February
Typical February water temperature near Medes Islands is 13.5°C (56.3°F), with yearly monthly means from 13.5–13.5°C.
Medes Islands in March
Typical March water temperature near Medes Islands is 13.7°C (56.7°F), with yearly monthly means from 13.5–14.0°C.
Medes Islands in April
Typical April water temperature near Medes Islands is 14.6°C (58.3°F), with yearly monthly means from 14.4–14.9°C.
Medes Islands in May
Typical May water temperature near Medes Islands is 17.2°C (63.0°F), with yearly monthly means from 16.9–17.6°C.
Medes Islands in June
Typical June water temperature near Medes Islands is 21.1°C (70.0°F), with yearly monthly means from 20.1–22.0°C.
Medes Islands in July
Typical July water temperature near Medes Islands is 24.0°C (75.2°F), with yearly monthly means from 22.8–24.9°C.
Medes Islands in August
Typical August water temperature near Medes Islands is 24.9°C (76.8°F), with yearly monthly means from 24.1–25.7°C.
Medes Islands in September
Typical September water temperature near Medes Islands is 22.6°C (72.7°F), with yearly monthly means from 22.3–22.8°C.
Medes Islands in October
Typical October water temperature near Medes Islands is 20.1°C (68.2°F), with yearly monthly means from 19.1–21.5°C.
Medes Islands in November
Typical November water temperature near Medes Islands is 17.6°C (63.7°F), with yearly monthly means from 17.2–18.2°C.
Medes Islands in December
Typical December water temperature near Medes Islands is 15.2°C (59.4°F), with yearly monthly means from 14.5–16.0°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 | 21.5°C / 70.7°F | 23.8°C / 74.8°F |
| July | 21.8°C / 71.2°F | 24.6°C / 76.3°F | 26.2°C / 79.2°F |
| August | 24.8°C / 76.6°F | 26.4°C / 79.6°F | 27.6°C / 81.7°F |
| September | 23.6°C / 74.5°F | 25.0°C / 76.9°F | 26.7°C / 80.1°F |
Partial coverage: 4 calendar months with records. Profile calculated from 2734 hourly forecast records across 4 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Medes Islands
Protected Costa Brava islets with the western Med's richest reef life.
- Area
- Catalonia
Medes Islands Water Temperature: Common Questions
What is the water temperature in Medes Islands today?
The current sea surface temperature near Medes Islands is 26.1°C (79.0°F). Over the last 30 days, the average has been 25.1°C.
When is the water warmest in Medes Islands?
The water is typically warmest in August, at around 24.9°C (76.8°F) in the 2023–2025 historical baseline.
When is the water coldest in Medes Islands?
The water is typically coldest in February, at around 13.5°C (56.3°F) in the same historical baseline. A wetsuit is usually recommended during this period.
Can you swim in Medes Islands today?
At 26.1°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 Medes Islands.
View Snorkel Forecast →