INSTRUMENT / SEA TEMPERATURE
Updated Sat 14:59 (Europe/Zagreb)
Croatia · Forecast updated Nov 7, 2026, 14:59 UTC
Current Sea Temperature
20.1°C
68.2°F
Cool water
Valid Nov 7, 2026, 14:59 (Europe/Zagreb). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
0.7°C above
The typical November average is 19.4°C (66.9°F) from the historical baseline.
Recent trend
Cooling by 0.7°C
Seven-day average: 20.2°C, versus 20.9°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.
In the historical baseline for Dubrovnik, typical monthly averages range from about 14.8°C (58.6°F) in February to 26.6°C (79.9°F) in August.
Over the past 30 days, the average sea temperature in Dubrovnik has been 21.2°C.
Northern Hemisphere. Summer is generally June–August; winter is December–February.
Typical monthly sea-surface temperature near Dubrovnik, calculated from hourly observations for 2022–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 15.6–16.1°C | 15.8°C / 60.4°F |
| February | 14.4–15.2°C | 14.8°C / 58.6°F |
| March | 14.6–15.7°C | 15.2°C / 59.4°F |
| April | 15.7–17.4°C | 16.5°C / 61.7°F |
| May | 18.8–19.9°C | 19.4°C / 66.9°F |
| June | 23.3–24.7°C | 24.0°C / 75.2°F |
| July | 25.6–27.2°C | 26.5°C / 79.7°F |
| August | 25.9–27.5°C | 26.6°C / 79.9°F |
| September | 24.5–25.7°C | 25.1°C / 77.2°F |
| October | 20.3–23.3°C | 21.9°C / 71.4°F |
| November | 18.8–20.7°C | 19.4°C / 66.9°F |
| December | 17.1–17.4°C | 17.2°C / 63.0°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (42.63, 18.13). Each month is the mean of yearly monthly means; the range is the lowest and highest of those yearly monthly means. Open-Meteo methodology.
Each month uses the 2022–2025 baseline. The range is the lowest and highest yearly monthly mean, not an hourly extreme.
Typical January water temperature near Dubrovnik is 15.8°C (60.4°F), with yearly monthly means from 15.6–16.1°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 17.2°C · February 14.8°C.
Explore Dubrovnik sea temperature in January, including swim comfort and month comparisons →
Typical February water temperature near Dubrovnik is 14.8°C (58.6°F), with yearly monthly means from 14.4–15.2°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: January 15.8°C · March 15.2°C.
Explore Dubrovnik sea temperature in February, including swim comfort and month comparisons →
Typical March water temperature near Dubrovnik is 15.2°C (59.4°F), with yearly monthly means from 14.6–15.7°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 14.8°C · April 16.5°C.
Explore Dubrovnik sea temperature in March, including swim comfort and month comparisons →
Typical April water temperature near Dubrovnik is 16.5°C (61.7°F), with yearly monthly means from 15.7–17.4°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 15.2°C · May 19.4°C.
Explore Dubrovnik sea temperature in April, including swim comfort and month comparisons →
Typical May water temperature near Dubrovnik is 19.4°C (66.9°F), with yearly monthly means from 18.8–19.9°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: April 16.5°C · June 24.0°C.
Explore Dubrovnik sea temperature in May, including swim comfort and month comparisons →
Typical June water temperature near Dubrovnik is 24.0°C (75.2°F), with yearly monthly means from 23.3–24.7°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: May 19.4°C · July 26.5°C.
Explore Dubrovnik sea temperature in June, including swim comfort and month comparisons →
Typical July water temperature near Dubrovnik is 26.5°C (79.7°F), with yearly monthly means from 25.6–27.2°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: June 24.0°C · August 26.6°C.
Explore Dubrovnik sea temperature in July, including swim comfort and month comparisons →
Typical August water temperature near Dubrovnik is 26.6°C (79.9°F), with yearly monthly means from 25.9–27.5°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: July 26.5°C · September 25.1°C.
Explore Dubrovnik sea temperature in August, including swim comfort and month comparisons →
Typical September water temperature near Dubrovnik is 25.1°C (77.2°F), with yearly monthly means from 24.5–25.7°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: August 26.6°C · October 21.9°C.
Explore Dubrovnik sea temperature in September, including swim comfort and month comparisons →
Typical October water temperature near Dubrovnik is 21.9°C (71.4°F), with yearly monthly means from 20.3–23.3°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: September 25.1°C · November 19.4°C.
Explore Dubrovnik sea temperature in October, including swim comfort and month comparisons →
Typical November water temperature near Dubrovnik is 19.4°C (66.9°F), with yearly monthly means from 18.8–20.7°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: October 21.9°C · December 17.2°C.
Explore Dubrovnik sea temperature in November, including swim comfort and month comparisons →
Typical December water temperature near Dubrovnik is 17.2°C (63.0°F), with yearly monthly means from 17.1–17.4°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 19.4°C · January 15.8°C.
Explore Dubrovnik sea temperature in December, including swim comfort and month comparisons →
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 |
|---|---|---|---|
| January | 15.0°C / 59.0°F | 15.8°C / 60.5°F | 16.5°C / 61.7°F |
| February | 14.9°C / 58.8°F | 15.1°C / 59.2°F | 15.4°C / 59.7°F |
| March | 14.1°C / 57.4°F | 14.7°C / 58.5°F | 15.2°C / 59.4°F |
| April | 14.7°C / 58.5°F | 16.2°C / 61.2°F | 18.1°C / 64.6°F |
| May | 17.0°C / 62.6°F | 18.9°C / 66.0°F | 22.0°C / 71.6°F |
| June | 21.0°C / 69.8°F | 24.2°C / 75.6°F | 28.0°C / 82.4°F |
| July | 23.7°C / 74.7°F | 26.1°C / 79.0°F | 28.4°C / 83.1°F |
| August | 26.1°C / 79.0°F | 27.8°C / 82.0°F | 29.5°C / 85.1°F |
| September | 24.1°C / 75.4°F | 26.3°C / 79.3°F | 29.4°C / 84.9°F |
| October | 19.0°C / 66.2°F | 21.0°C / 69.9°F | 24.3°C / 75.7°F |
| November | 18.2°C / 64.8°F | 19.1°C / 66.4°F | 20.4°C / 68.7°F |
| December | 16.1°C / 61.0°F | 17.2°C / 63.0°F | 18.5°C / 65.3°F |
Profile calculated from 10152 hourly forecast records across 15 monthly periods. This is a growing archive, not a long-term climate normal.
Historic Adriatic coastal city
The current sea surface temperature near Dubrovnik is 20.1°C (68.2°F). Over the last 30 days, the average has been 21.2°C.
The water is typically warmest in August, at around 26.6°C (79.9°F) in the 2022–2025 historical baseline.
The water is typically coldest in February, at around 14.8°C (58.6°F) in the same historical baseline. A wetsuit is usually recommended during this period.
At 20.1°C, the water is usually comfortable for swimming and snorkeling.
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