INSTRUMENT / SEA TEMPERATURE
Vis Water Temperature
Updated Fri 20:18 (Europe/Zagreb)
Croatia · Forecast updated Nov 6, 2026, 20:18 UTC
Current Sea Temperature
19.7°C
67.5°F
Cool water
Valid Nov 6, 2026, 20:18 (Europe/Zagreb). 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 19.5°C (67.1°F) from the historical baseline.
Recent trend
Cooling by 0.6°C
Seven-day average: 19.9°C, versus 20.6°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 Vis, typical monthly averages range from about 15.1°C (59.2°F) in February to 25.9°C (78.6°F) in August.
Over the past 30 days, the average sea temperature in Vis has been 21.1°C.
Historical baseline (full year)
Northern Hemisphere. Summer is generally June–August; winter is December–February.
Typical monthly sea-surface temperature near Vis, calculated from hourly observations for 2022–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 15.5–16.4°C | 15.9°C / 60.6°F |
| February | 14.8–15.3°C | 15.1°C / 59.2°F |
| March | 14.9–15.5°C | 15.1°C / 59.2°F |
| April | 15.6–16.4°C | 16.1°C / 61.0°F |
| May | 18.1–19.1°C | 18.6°C / 65.5°F |
| June | 22.9–23.2°C | 23.1°C / 73.6°F |
| July | 25.1–26.2°C | 25.7°C / 78.3°F |
| August | 25.1–26.7°C | 25.9°C / 78.6°F |
| September | 24.3–24.9°C | 24.6°C / 76.3°F |
| October | 20.5–23.0°C | 21.8°C / 71.2°F |
| November | 18.2–20.4°C | 19.5°C / 67.1°F |
| December | 16.8–17.6°C | 17.3°C / 63.1°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (43.04, 16.21). 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.
Vis in January
Typical January water temperature near Vis is 15.9°C (60.6°F), with yearly monthly means from 15.5–16.4°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: December 17.3°C · February 15.1°C.
Explore Vis sea temperature in January, including swim comfort and month comparisons →
Vis in February
Typical February water temperature near Vis is 15.1°C (59.2°F), with yearly monthly means from 14.8–15.3°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 15.9°C · March 15.1°C.
Explore Vis sea temperature in February, including swim comfort and month comparisons →
Vis in March
Typical March water temperature near Vis is 15.1°C (59.2°F), with yearly monthly means from 14.9–15.5°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: February 15.1°C · April 16.1°C.
Explore Vis sea temperature in March, including swim comfort and month comparisons →
Vis in April
Typical April water temperature near Vis is 16.1°C (61.0°F), with yearly monthly means from 15.6–16.4°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 15.1°C · May 18.6°C.
Explore Vis sea temperature in April, including swim comfort and month comparisons →
Vis in May
Typical May water temperature near Vis is 18.6°C (65.5°F), with yearly monthly means from 18.1–19.1°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: April 16.1°C · June 23.1°C.
Explore Vis sea temperature in May, including swim comfort and month comparisons →
Vis in June
Typical June water temperature near Vis is 23.1°C (73.6°F), with yearly monthly means from 22.9–23.2°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: May 18.6°C · July 25.7°C.
Explore Vis sea temperature in June, including swim comfort and month comparisons →
Vis in July
Typical July water temperature near Vis is 25.7°C (78.3°F), with yearly monthly means from 25.1–26.2°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: June 23.1°C · August 25.9°C.
Explore Vis sea temperature in July, including swim comfort and month comparisons →
Vis in August
Typical August water temperature near Vis is 25.9°C (78.6°F), with yearly monthly means from 25.1–26.7°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: July 25.7°C · September 24.6°C.
Explore Vis sea temperature in August, including swim comfort and month comparisons →
Vis in September
Typical September water temperature near Vis is 24.6°C (76.3°F), with yearly monthly means from 24.3–24.9°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: August 25.9°C · October 21.8°C.
Explore Vis sea temperature in September, including swim comfort and month comparisons →
Vis in October
Typical October water temperature near Vis is 21.8°C (71.2°F), with yearly monthly means from 20.5–23.0°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: September 24.6°C · November 19.5°C.
Explore Vis sea temperature in October, including swim comfort and month comparisons →
Vis in November
Typical November water temperature near Vis is 19.5°C (67.1°F), with yearly monthly means from 18.2–20.4°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: October 21.8°C · December 17.3°C.
Explore Vis sea temperature in November, including swim comfort and month comparisons →
Vis in December
Typical December water temperature near Vis is 17.3°C (63.1°F), with yearly monthly means from 16.8–17.6°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: November 19.5°C · January 15.9°C.
Explore Vis 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 | 24.0°C / 75.3°F | 28.1°C / 82.6°F |
| July | 24.8°C / 76.6°F | 26.6°C / 79.8°F | 28.7°C / 83.7°F |
| August | 26.2°C / 79.2°F | 27.9°C / 82.3°F | 29.0°C / 84.2°F |
| September | 23.8°C / 74.8°F | 26.2°C / 79.1°F | 28.4°C / 83.1°F |
| October | 20.3°C / 68.5°F | 21.9°C / 71.4°F | 24.2°C / 75.6°F |
| November | 19.4°C / 66.9°F | 19.7°C / 67.5°F | 20.3°C / 68.5°F |
Partial coverage: 6 calendar months with records. Profile calculated from 3821 hourly forecast records across 6 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Vis
Remote Adriatic island with the Blue Cave nearby and exceptionally clear coves.
- Area
- Split-Dalmatia
Vis Water Temperature: Common Questions
What is the water temperature in Vis today?
The current sea surface temperature near Vis is 19.7°C (67.5°F). Over the last 30 days, the average has been 21.1°C.
When is the water warmest in Vis?
The water is typically warmest in August, at around 25.9°C (78.6°F) in the 2022–2025 historical baseline.
When is the water coldest in Vis?
The water is typically coldest in February, at around 15.1°C (59.2°F) in the same historical baseline. A wetsuit is usually recommended during this period.
Can you swim in Vis today?
The water is 19.7°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 Vis.
View Snorkel Forecast →