What is the Ocean Viewing Index (OVI) for Costa Smeralda?

OVI is a 0-100 composite score combining sea color, water clarity, visibility, sea conditions, sunlight and water quality to help you decide if the sea is worth seeing today.

Costa Smeralda

Sardinia, ItalyEurope/Rome

Ocean View Index

90Excellent

Next tide

—

Sunrise / Sunset

05:08 – 17:56

Local time

20:02

Sardinia's Costa Smeralda dazzles with the clearest white sand, emerald seas, and top-tier yacht resorts in Europe.

Ocean Viewing Index

Updated · Sep 8, 2026 18:02

Reference time: local noon · 13:32 (Europe/Rome)

Estimated

Excellent

Excellent viewing conditions. Highly recommended!

Sub-Index Breakdown

Six dimensions feed the overall Ocean Viewing Index.

Sea Color
Vivid turquoise / azure · hue
92.4
Clarity
Very clear (below 1.5 NTU) · NTU
100
Visibility
15+ m horizontal · m
100
Sea State
Calm, glassy (0-1) · Beaufort
100
Lighting
Good daylight · lux
64.1
Water Quality
index
—

Weather Forecast

7-day marine weather forecast from Open-Meteo model.

TodaySep 8

Fog

30°26°

1.5 m/s

WedSep 9

Overcast

30°25°

1.9 m/s

ThuSep 10

Rain

27°25°

4.5 m/s

2.0mm

FriSep 11

Overcast

28°24°

3.7 m/s

SatSep 12

Thunderstorm

28°23°

3.9 m/s

8.0mm

SunSep 13

Thunderstorm

26°22°

4.6 m/s

4.3mm

MonSep 14

Partly Cloudy

28°18°

3.2 m/s

Visibility: 25 km·Cloud: 14%

48-Hour Hourly Forecast

Hour-by-hour marine weather for the next 48 hours.

Now27°1—

01:0027°1—

02:0026°1—

03:0026°1—

04:0026°1—

05:0026°1—

06:0026°2—

07:0027°2—

08:0028°2—

09:0029°2—

10:0030°2—

11:0030°2—

12:0030°1—

13:0029°2—

14:0029°2—

15:0030°2—

16:0030°1—

17:0029°1—

18:0029°1—

19:0028°1—

20:0028°2—

21:0027°2—

22:0027°2—

23:0027°2—

00:0026°2—

01:0026°2—

02:0026°1—

03:0026°1—

04:0026°1—

05:0025°1—

06:0025°2—

07:0026°2—

08:0028°1—

09:0029°0—

10:0029°1—

11:0029°2—

12:0029°2—

13:0029°2—

14:0030°2—

15:0030°2—

16:0030°3—

17:0029°4—

18:0029°4—

19:0028°4—

20:0028°3—

21:0028°2—

22:0027°1—

23:0027°2—

7-Day OVI Trend

Forecast ocean viewing conditions for the coming week.

Best on Wed: Viewing conditions are Excellent; aim for the golden hour just after sunrise or before sunset. Great for snorkeling and photography.

High & Low Tides Today

Times and heights of today's high and low water.

Spring TideCoefficient: 116.4 / 120Higher coefficient means larger tide range; 120 is the largest spring, 20 the smallest neap.

Time	Type	Height
No tide extremes recorded today.

48-Hour OVI Trend

Hour-by-hour ocean viewing outlook for the next 48 hours, dampened by rainfall.

Today's Tide Summary

A quick look at the day's high and low water.

Nearby Beaches

Other beaches closest to Costa Smeralda.

335 km away

Pampelonne Beach

Var, France

337 km away

Monterosso Beach

Liguria, Italy

341 km away

Plage de la Croisette

Alpes-Maritimes, France

342 km away

Promenade des Anglais

Alpes-Maritimes, France

Frequently asked questions

What is the Ocean Viewing Index (OVI) for Costa Smeralda?: OVI is a 0-100 composite score combining sea color, water clarity, visibility, sea conditions, sunlight and water quality to help you decide if the sea is worth seeing today.

Essential Information

Coordinates: 41.1200°, 9.5400°
Timezone: Europe/Rome
Region & Country: Sardinia, Italy

Data sources

Tides: UHSLC / FES2022b · Weather: NOAA GFS · Sea color: NASA MODIS/VIIRS