INSTRUMENT / SEA TEMPERATURE
Naxos Water Temperature
Updated Tue 17:58 (Europe/Athens)
Greece · Forecast updated Nov 10, 2026, 17:58 UTC
Current Sea Temperature
19.4°C
66.9°F
Cool water
Valid Nov 10, 2026, 17:58 (Europe/Athens). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
1.0°C below
The typical November average is 20.4°C (68.7°F) from the historical baseline.
Recent trend
Cooling by 0.5°C
Seven-day average: 19.7°C, versus 20.2°C in the prior seven days.
What to wear
Cool water
A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
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 Naxos, typical monthly averages range from about 16.3°C (61.3°F) in February to 25.6°C (78.1°F) in August.
Over the past 30 days, the average sea temperature in Naxos has been 20.8°C.
Historical baseline (full year)
Northern Hemisphere. Summer is generally June–August; winter is December–February.
Typical monthly sea-surface temperature near Naxos, calculated from hourly observations for 2022–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 16.0–17.5°C | 16.8°C / 62.2°F |
| February | 15.9–16.6°C | 16.3°C / 61.3°F |
| March | 15.9–17.2°C | 16.5°C / 61.7°F |
| April | 16.7–18.2°C | 17.3°C / 63.1°F |
| May | 18.4–19.6°C | 18.8°C / 65.8°F |
| June | 21.5–23.7°C | 22.4°C / 72.3°F |
| July | 24.2–24.7°C | 24.5°C / 76.1°F |
| August | 25.5–25.7°C | 25.6°C / 78.1°F |
| September | 24.2–25.7°C | 24.7°C / 76.5°F |
| October | 21.9–23.5°C | 22.7°C / 72.9°F |
| November | 19.6–21.3°C | 20.4°C / 68.7°F |
| December | 17.4–18.6°C | 18.1°C / 64.6°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (37.13, 25.29). 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 2022–2025 baseline. The range is the lowest and highest yearly monthly mean, not an hourly extreme.
Naxos in January
Typical January water temperature near Naxos is 16.8°C (62.2°F), with yearly monthly means from 16.0–17.5°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: December 18.1°C · February 16.3°C.
Explore Naxos sea temperature in January, including swim comfort and month comparisons →
Naxos in February
Typical February water temperature near Naxos is 16.3°C (61.3°F), with yearly monthly means from 15.9–16.6°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: January 16.8°C · March 16.5°C.
Explore Naxos sea temperature in February, including swim comfort and month comparisons →
Naxos in March
Typical March water temperature near Naxos is 16.5°C (61.7°F), with yearly monthly means from 15.9–17.2°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: February 16.3°C · April 17.3°C.
Explore Naxos sea temperature in March, including swim comfort and month comparisons →
Naxos in April
Typical April water temperature near Naxos is 17.3°C (63.1°F), with yearly monthly means from 16.7–18.2°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: March 16.5°C · May 18.8°C.
Explore Naxos sea temperature in April, including swim comfort and month comparisons →
Naxos in May
Typical May water temperature near Naxos is 18.8°C (65.8°F), with yearly monthly means from 18.4–19.6°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: April 17.3°C · June 22.4°C.
Explore Naxos sea temperature in May, including swim comfort and month comparisons →
Naxos in June
Typical June water temperature near Naxos is 22.4°C (72.3°F), with yearly monthly means from 21.5–23.7°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: May 18.8°C · July 24.5°C.
Explore Naxos sea temperature in June, including swim comfort and month comparisons →
Naxos in July
Typical July water temperature near Naxos is 24.5°C (76.1°F), with yearly monthly means from 24.2–24.7°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: June 22.4°C · August 25.6°C.
Explore Naxos sea temperature in July, including swim comfort and month comparisons →
Naxos in August
Typical August water temperature near Naxos is 25.6°C (78.1°F), with yearly monthly means from 25.5–25.7°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: July 24.5°C · September 24.7°C.
Explore Naxos sea temperature in August, including swim comfort and month comparisons →
Naxos in September
Typical September water temperature near Naxos is 24.7°C (76.5°F), with yearly monthly means from 24.2–25.7°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: August 25.6°C · October 22.7°C.
Explore Naxos sea temperature in September, including swim comfort and month comparisons →
Naxos in October
Typical October water temperature near Naxos is 22.7°C (72.9°F), with yearly monthly means from 21.9–23.5°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: September 24.7°C · November 20.4°C.
Explore Naxos sea temperature in October, including swim comfort and month comparisons →
Naxos in November
Typical November water temperature near Naxos is 20.4°C (68.7°F), with yearly monthly means from 19.6–21.3°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: October 22.7°C · December 18.1°C.
Explore Naxos sea temperature in November, including swim comfort and month comparisons →
Naxos in December
Typical December water temperature near Naxos is 18.1°C (64.6°F), with yearly monthly means from 17.4–18.6°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: November 20.4°C · January 16.8°C.
Explore Naxos 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 | 21.1°C / 70.0°F | 22.7°C / 72.8°F | 24.5°C / 76.1°F |
| July | 23.2°C / 73.8°F | 24.4°C / 76.0°F | 26.2°C / 79.2°F |
| August | 23.9°C / 75.0°F | 24.7°C / 76.4°F | 26.1°C / 79.0°F |
| September | 23.2°C / 73.8°F | 24.3°C / 75.7°F | 25.5°C / 77.9°F |
| October | 19.7°C / 67.5°F | 21.8°C / 71.3°F | 23.3°C / 73.9°F |
| November | 19.3°C / 66.7°F | 19.7°C / 67.4°F | 20.2°C / 68.4°F |
Partial coverage: 6 calendar months with records. Profile calculated from 3914 hourly forecast records across 6 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Naxos
Largest Cycladic island with sheltered sandy bays and clear Aegean water.
- Area
- Cyclades
Naxos Water Temperature: Common Questions
What is the water temperature in Naxos today?
The current sea surface temperature near Naxos is 19.4°C (66.9°F). Over the last 30 days, the average has been 20.8°C.
When is the water warmest in Naxos?
The water is typically warmest in August, at around 25.6°C (78.1°F) in the 2022–2025 historical baseline.
When is the water coldest in Naxos?
The water is typically coldest in February, at around 16.3°C (61.3°F) in the same historical baseline. A wetsuit is usually recommended during this period.
Can you swim in Naxos today?
The water is 19.4°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 Naxos.
View Snorkel Forecast →