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Otok Mljet

Water Temperature in the Adriatic Sea in Otok Mljet, Croatia: Current, Historical Data and Forecast

On this page, you will find comprehensive information about the sea temperature in Otok Mljet in Croatia, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Water Temperature in Otok Mljet

20.2°C

TODAY

20.2°C

YESTERDAY

18.5°C

A WEEK AGO

All water temperature data is now available in our official mobile apps — for iOS and Android.

Analysis, Historical Data, and Forecast of Water Temperature

Today sea water temperature in the Adriatic Sea in Otok Mljet is 20.2°C. The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience.

It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart for Adriatic Sea in Otok Mljet Over the Last 30 Days

The water temperature in Otok Mljet today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.

According to our forecast, the sea temperature in Otok Mljet will remain nearly unchanged in the coming days, its value will be 21.1°C.

Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.

Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across Croatia to enhance accuracy.

Water temperature data for Otok Mljet and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
May 31	18.5°C	20.0°C
Jun 1	18.4°C	20.8°C
Jun 2	18.7°C	20.5°C
Jun 3	19.2°C	20.3°C
Jun 4	19.2°C	20.5°C
Jun 5	18.8°C	20.8°C
Jun 6	20.2°C	21.0°C
Jun 7	20.2°C	21.3°C
Jun 8		21.5°C	20.3°C
Jun 9		21.5°C	20.4°C
Jun 10		21.5°C	20.5°C
Jun 11		21.5°C	20.6°C
Jun 12		22.0°C	20.7°C
Jun 13		21.8°C	20.8°C
Jun 14		22.0°C	20.9°C
Jun 15		22.5°C	21.1°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Sea Temperature in Otok Mljet Throughout the Year

Throughout the year, the sea temperature in Otok Mljet exceeds 77°F (25°C) for 59 days, exceeds 72°F (22°C) for 116 days, and exceeds 64°F (18°C) for 206 days.

Below is the annual chart of sea temperature changes in the Adriatic Sea in Otok Mljet.

January

Minimum	Average	Maximum
12°C	14.5°C	17°C

February

Minimum	Average	Maximum
13°C	14.5°C	16°C

March

Minimum	Average	Maximum
13°C	14.5°C	16°C

April

Minimum	Average	Maximum
13°C	15.5°C	18°C

May

Minimum	Average	Maximum
15°C	18.5°C	22°C

June

Minimum	Average	Maximum
18°C	22°C	26°C

July

Minimum	Average	Maximum
22°C	25.5°C	29°C

August

Minimum	Average	Maximum
22°C	25°C	28°C

September

Minimum	Average	Maximum
20°C	23.5°C	27°C

October

Minimum	Average	Maximum
16°C	20.5°C	25°C

November

Minimum	Average	Maximum
16°C	19°C	22°C

December

Minimum	Average	Maximum
12°C	16°C	20°C

Monthly Water Temperature Histogram for Adriatic Sea in Otok Mljet

You can explore detailed data on how the water temperature in Otok Mljet varies each month:

What Beaches Are There In and Around Otok Mljet?

Sutmiholjska Beach

Sutmiholjska Beach is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Otok Mljet. For those who prefer clothing-optional beaches, Sutmiholjska Beach is a designated nudist beach. There is parking. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Plaza Prozurska Luka

Plaza Prozurska Luka is a 1-stars sandy beach, located in a 5 km (3 miles) radius of Otok Mljet.

Sutmiljhoska Beach

Sutmiljhoska Beach is a 3-stars sandy beach, located in a 7 km (4 miles) radius of Otok Mljet. There is parking. There are cafés. Sutmiljhoska Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible.

Otok Mljet Weather

JUNE 8

18°C / 29°C

clear sky

humidity: 58% | wind: 3 km/h

JUNE 9

16°C / 26°C

clear sky

humidity: 61% | wind: 4 km/h

JUNE 10

17°C / 25°C

clear sky

humidity: 66% | wind: 2 km/h

JUNE 11

20°C / 20°C

few clouds: 11-25%

humidity: 70% | wind: 2 km/h

Sea Temperature in the Adriatic Sea in Otok Mljet: General Trends and Swimming Opportunities

Original name

Mljet

The Local Time

13:16

Time Zone

UTC+2

Sunrise

05:11

Sunset

20:25

Length of the day

15 h 14 m

Dubrovnik-Neretva County, Croatia, features a Mediterranean climate characterized by warm, dry summers and mild, wet winters. It enjoys an average of about 2,600 sunny hours per year, making it one of the sunniest regions on the Adriatic Sea coast.

Otok Mljet is located in Europe in the Northern Hemisphere at a latitude of 43 degrees, along the shores of the Adriatic Sea. Otok Mljet lies within the Dubrovnik-Neretva County in Croatia.

The average annual daytime air temperature in Otok Mljet is 20°C (68°F), with the average nighttime temperature being 13°C (55°F). The highest average daily temperature occurs in July, reaching 30°C (86°F), while the lowest is in January at 11°C (52°F). As for nighttime temperatures, the minimum average temperature of 3°C (38°F) is recorded in January, and the maximum is in July, reaching 24°C (74°F).

According to historical data, Otok Mljet experiences 96 rainy days per year, which accounts for 26 percent of all days in the year. On average, there are 8 rainy days each month. The wettest month is November, with 11 rainy days and 119 mm (4.7 inches) of precipitation, while the driest month is July, which typically has 4 rainy days and only 25 mm (1.0 inches) of precipitation.

The average annual water temperature in Adriatic Sea in Otok Mljet is 19°C (66°F). In January, the water reaches its lowest point of the year at 12°C (54°F), while in July, it peaks at 29°C (84°F). The months suitable for comfortable beach vacations and swimming in the Adriatic Sea are July, and August. During this period, the water temperature stays above 20°C (68°F) and can reach up to 29°C (84°F) on some days.

Geographical Location of Otok Mljet

Nearby Cities

Frequently Asked Questions About Otok Mljet and its Water Temperatures

What is the current sea temperature in Otok Mljet?

The water temperature today in the Adriatic Sea in Otok Mljet is 68°F (20.2°C).

In which months is the water temperature in Otok Mljet comfortable for swimming?

The water temperature in the Adriatic Sea in Otok Mljet is comfortable for swimming and beach vacations in July, and August.

What is the water temperature in Otok Mljet during the winter?

The water temperature in the Adriatic Sea in Otok Mljet during the winter ranges from 12°C to 20°C (54°F to 68°F).

What is the water temperature in Otok Mljet during the spring?

The water temperature in the Adriatic Sea in Otok Mljet during the spring ranges from 13°C to 22°C (55°F to 72°F).

What is the water temperature in Otok Mljet during the summer?

The water temperature in the Adriatic Sea in Otok Mljet during the summer ranges from 18°C to 29°C (64°F to 84°F).

What is the water temperature in Otok Mljet during the fall?

The water temperature in the Adriatic Sea in Otok Mljet during the fall ranges from 16°C to 27°C (61°F to 81°F).

Is it possible to swim in the sea in Otok Mljet year-round?

No, it is not possible to swim in the Adriatic Sea in Otok Mljet year-round, the months suitable for comfortable swimming are July, and August.

Is Otok Mljet a popular tourist destination for beach vacations?

Otok Mljet has a moderate level of popularity for beach vacations; while it does receive some visitors, it is not among the top seaside destinations, as other locations may offer more favorable conditions.

What sea temperatures can I expect in Otok Mljet in the next month?

In July, the water temperature in the Adriatic Sea in Otok Mljet will range between 72°F (22°C) and 84°F (29°C)