INSTRUMENT / SEA TEMPERATURE
Medes Islands Water Temperature
Updated Fri 20:17 (Europe/Madrid)
Spain · Forecast updated Nov 6, 2026, 20:17 UTC
Current Sea Temperature
17.9°C
64.2°F
Cold water
Valid Nov 6, 2026, 20:17 (Europe/Madrid). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
0.3°C above
The typical November average is 17.6°C (63.7°F) from the historical baseline.
Recent trend
Cooling by 1.9°C
Seven-day average: 18.9°C, versus 20.7°C in the prior seven days.
What to wear
Cold water
Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
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 20.4°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.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: December 15.2°C · February 13.5°C.
Explore Medes Islands sea temperature in January, including swim comfort and month comparisons →
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.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: January 14.0°C · March 13.7°C.
Explore Medes Islands sea temperature in February, including swim comfort and month comparisons →
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.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: February 13.5°C · April 14.6°C.
Explore Medes Islands sea temperature in March, including swim comfort and month comparisons →
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.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: March 13.7°C · May 17.2°C.
Explore Medes Islands sea temperature in April, including swim comfort and month comparisons →
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.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: April 14.6°C · June 21.1°C.
Explore Medes Islands sea temperature in May, including swim comfort and month comparisons →
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.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: May 17.2°C · July 24.0°C.
Explore Medes Islands sea temperature in June, including swim comfort and month comparisons →
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.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: June 21.1°C · August 24.9°C.
Explore Medes Islands sea temperature in July, including swim comfort and month comparisons →
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.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: July 24.0°C · September 22.6°C.
Explore Medes Islands sea temperature in August, including swim comfort and month comparisons →
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.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: August 24.9°C · October 20.1°C.
Explore Medes Islands sea temperature in September, including swim comfort and month comparisons →
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.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: September 22.6°C · November 17.6°C.
Explore Medes Islands sea temperature in October, including swim comfort and month comparisons →
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.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: October 20.1°C · December 15.2°C.
Explore Medes Islands sea temperature in November, including swim comfort and month comparisons →
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.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: November 17.6°C · January 14.0°C.
Explore Medes Islands sea temperature in December, including swim comfort and month comparisons →
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 | 22.8°C / 73.0°F | 24.8°C / 76.7°F | 26.7°C / 80.1°F |
| October | 19.6°C / 67.3°F | 21.2°C / 70.1°F | 22.8°C / 73.0°F |
| November | 17.9°C / 64.2°F | 18.5°C / 65.3°F | 19.6°C / 67.3°F |
Partial coverage: 6 calendar months with records. Profile calculated from 3820 hourly forecast records across 6 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 17.9°C (64.2°F). Over the last 30 days, the average has been 20.4°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?
The water is 17.9°C. It may feel cool, but a wetsuit or short swims can help.
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 →