INSTRUMENT / SEA TEMPERATURE
Fethiye Water Temperature
Updated Fri 10:52 (Europe/Istanbul)
Turkey · Forecast updated Nov 6, 2026, 10:52 UTC
Current Sea Temperature
23.7°C
74.7°F
Mild water
Valid Nov 6, 2026, 10:52 (Europe/Istanbul). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
Close to average
The typical November average is 23.6°C (74.5°F) from the historical baseline.
Recent trend
Cooling by 0.9°C
Seven-day average: 24.0°C, versus 24.9°C in the prior seven days.
What to wear
Mild water
A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
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 Fethiye, typical monthly averages range from about 18.0°C (64.4°F) in March to 29.5°C (85.1°F) in August.
Over the past 30 days, the average sea temperature in Fethiye has been 25.2°C.
Historical baseline (full year)
Northern Hemisphere. Summer is generally June–August; winter is December–February.
Typical monthly sea-surface temperature near Fethiye, calculated from hourly observations for 2022–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 19.0–20.8°C | 19.8°C / 67.6°F |
| February | 17.8–19.1°C | 18.5°C / 65.3°F |
| March | 17.7–18.6°C | 18.0°C / 64.4°F |
| April | 18.0–20.1°C | 18.8°C / 65.8°F |
| May | 20.4–21.6°C | 21.0°C / 69.8°F |
| June | 24.4–26.5°C | 25.5°C / 77.9°F |
| July | 27.8–29.2°C | 28.5°C / 83.3°F |
| August | 29.3–29.9°C | 29.5°C / 85.1°F |
| September | 27.6–28.4°C | 28.1°C / 82.6°F |
| October | 25.2–26.4°C | 25.9°C / 78.6°F |
| November | 23.2–24.2°C | 23.6°C / 74.5°F |
| December | 20.4–22.0°C | 21.2°C / 70.2°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (36.63, 29.04). 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.
Fethiye in January
Typical January water temperature near Fethiye is 19.8°C (67.6°F), with yearly monthly means from 19.0–20.8°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: December 21.2°C · February 18.5°C.
Explore Fethiye sea temperature in January, including swim comfort and month comparisons →
Fethiye in February
Typical February water temperature near Fethiye is 18.5°C (65.3°F), with yearly monthly means from 17.8–19.1°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: January 19.8°C · March 18.0°C.
Explore Fethiye sea temperature in February, including swim comfort and month comparisons →
Fethiye in March
Typical March water temperature near Fethiye is 18.0°C (64.4°F), with yearly monthly means from 17.7–18.6°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: February 18.5°C · April 18.8°C.
Explore Fethiye sea temperature in March, including swim comfort and month comparisons →
Fethiye in April
Typical April water temperature near Fethiye is 18.8°C (65.8°F), with yearly monthly means from 18.0–20.1°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: March 18.0°C · May 21.0°C.
Explore Fethiye sea temperature in April, including swim comfort and month comparisons →
Fethiye in May
Typical May water temperature near Fethiye is 21.0°C (69.8°F), with yearly monthly means from 20.4–21.6°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: April 18.8°C · June 25.5°C.
Explore Fethiye sea temperature in May, including swim comfort and month comparisons →
Fethiye in June
Typical June water temperature near Fethiye is 25.5°C (77.9°F), with yearly monthly means from 24.4–26.5°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: May 21.0°C · July 28.5°C.
Explore Fethiye sea temperature in June, including swim comfort and month comparisons →
Fethiye in July
Typical July water temperature near Fethiye is 28.5°C (83.3°F), with yearly monthly means from 27.8–29.2°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: June 25.5°C · August 29.5°C.
Explore Fethiye sea temperature in July, including swim comfort and month comparisons →
Fethiye in August
Typical August water temperature near Fethiye is 29.5°C (85.1°F), with yearly monthly means from 29.3–29.9°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: July 28.5°C · September 28.1°C.
Explore Fethiye sea temperature in August, including swim comfort and month comparisons →
Fethiye in September
Typical September water temperature near Fethiye is 28.1°C (82.6°F), with yearly monthly means from 27.6–28.4°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: August 29.5°C · October 25.9°C.
Explore Fethiye sea temperature in September, including swim comfort and month comparisons →
Fethiye in October
Typical October water temperature near Fethiye is 25.9°C (78.6°F), with yearly monthly means from 25.2–26.4°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: September 28.1°C · November 23.6°C.
Explore Fethiye sea temperature in October, including swim comfort and month comparisons →
Fethiye in November
Typical November water temperature near Fethiye is 23.6°C (74.5°F), with yearly monthly means from 23.2–24.2°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: October 25.9°C · December 21.2°C.
Explore Fethiye sea temperature in November, including swim comfort and month comparisons →
Fethiye in December
Typical December water temperature near Fethiye is 21.2°C (70.2°F), with yearly monthly means from 20.4–22.0°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: November 23.6°C · January 19.8°C.
Explore Fethiye 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 | 22.6°C / 72.7°F | 25.6°C / 78.1°F | 28.0°C / 82.4°F |
| July | 26.3°C / 79.3°F | 28.3°C / 82.9°F | 30.1°C / 86.2°F |
| August | 28.2°C / 82.8°F | 29.2°C / 84.6°F | 30.2°C / 86.4°F |
| September | 27.0°C / 80.6°F | 28.4°C / 83.0°F | 29.6°C / 85.3°F |
| October | 24.5°C / 76.1°F | 25.8°C / 78.5°F | 27.1°C / 80.8°F |
| November | 23.5°C / 74.3°F | 23.8°C / 74.8°F | 24.5°C / 76.1°F |
Partial coverage: 6 calendar months with records. Profile calculated from 3810 hourly forecast records across 6 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Fethiye
Turquoise Coast hub with Ölüdeniz lagoon and sheltered clear bays.
- Area
- Muğla
Fethiye Water Temperature: Common Questions
What is the water temperature in Fethiye today?
The current sea surface temperature near Fethiye is 23.7°C (74.7°F). Over the last 30 days, the average has been 25.2°C.
When is the water warmest in Fethiye?
The water is typically warmest in August, at around 29.5°C (85.1°F) in the 2022–2025 historical baseline.
When is the water coldest in Fethiye?
The water is typically coldest in March, at around 18.0°C (64.4°F) in the same historical baseline. A wetsuit is usually recommended during this period.
Can you swim in Fethiye today?
At 23.7°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 Fethiye.
View Snorkel Forecast →