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Alonnisos
Water Temperature in the Aegean Sea in Alonnisos, Greece: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Alonnisos in Greece, 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 Alonnisos
14.2°C
TODAY
14.2°C
YESTERDAY
14.2°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Aegean Sea in Alonnisos is 14.2°C. The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.
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 Aegean Sea in Alonnisos Over the Last 30 Days
The water temperature in Alonnisos 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 Alonnisos will remain nearly unchanged in the coming days, its value will be 14.4°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 Greece to enhance accuracy.
Water temperature data for Alonnisos 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 |
|---|---|---|---|
| Feb 15 | 14.2°C | 14.3°C | |
| Feb 16 | 14.3°C | 14.3°C | |
| Feb 17 | 14.1°C | 14.0°C | |
| Feb 18 | 14.1°C | 15.0°C | |
| Feb 19 | 14.0°C | 14.5°C | |
| Feb 20 | 14.2°C | 14.3°C | |
| Feb 21 | 14.2°C | 14.5°C | |
| Feb 22 | 14.2°C | 14.3°C | |
| Feb 23 | 14.3°C | 14.2°C | |
| Feb 24 | 14.8°C | 14.3°C | |
| Feb 25 | 14.3°C | 14.3°C | |
| Feb 26 | 14.5°C | 14.3°C | |
| Feb 27 | 14.8°C | 14.4°C | |
| Feb 28 | 14.0°C | 14.3°C | |
| Mar 1 | 15.0°C | 14.4°C | |
| Mar 2 | 14.5°C | 14.4°C |
Sea Temperature in Alonnisos Throughout the Year
Throughout the year, the sea temperature in Alonnisos exceeds 77°F (25°C) for 75 days, exceeds 72°F (22°C) for 130 days, and exceeds 64°F (18°C) for 197 days.
Below is the annual chart of sea temperature changes in the Aegean Sea in Alonnisos.
January
| Minimum | Average | Maximum |
|---|---|---|
| 13°C | 15°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 | 16.5°C | 20°C |
May
| Minimum | Average | Maximum |
|---|---|---|
| 15°C | 20°C | 25°C |
June
| Minimum | Average | Maximum |
|---|---|---|
| 19°C | 23°C | 27°C |
July
| Minimum | Average | Maximum |
|---|---|---|
| 23°C | 26°C | 29°C |
August
| Minimum | Average | Maximum |
|---|---|---|
| 24°C | 26.5°C | 29°C |
September
| Minimum | Average | Maximum |
|---|---|---|
| 22°C | 25°C | 28°C |
October
| Minimum | Average | Maximum |
|---|---|---|
| 18°C | 21.5°C | 25°C |
November
| Minimum | Average | Maximum |
|---|---|---|
| 16°C | 19°C | 22°C |
December
| Minimum | Average | Maximum |
|---|---|---|
| 15°C | 17°C | 19°C |
Monthly Water Temperature Histogram for Aegean Sea in Alonnisos
You can explore detailed data on how the water temperature in Alonnisos varies each month:
What Beaches Are There In and Around Alonnisos?
Mikros Mourtias
Mikros Mourtias is a 3-stars sandy beach, is located directly in Alonnisos. For those who prefer clothing-optional beaches, Mikros Mourtias is a designated nudist beach. There is parking. Mikros Mourtias is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Gyalia
Gyalia is a 3-stars sandy beach, is located directly in Alonnisos. For those who prefer clothing-optional beaches, Gyalia is a designated nudist beach. There is parking. Gyalia is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Vithisma
Vithisma is a 4-stars sandy beach, is located directly in Alonnisos. For those who prefer clothing-optional beaches, Vithisma is a designated nudist beach. There is parking. There are cafés. Vithisma is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Vrisista Beach
Vrisista Beach is a 1-stars sandy beach, is located directly in Alonnisos.
Megalos Mourtias Beach
Megalos Mourtias Beach is a 2-stars sandy beach, is located directly in Alonnisos. There are cafés.
Marpunta Beach
Marpunta Beach is a 1-stars sandy beach, located in a 2 km (1 miles) radius of Alonnisos.
Marpounta Beach
Marpounta Beach is a 4-stars sandy beach, located in a 2 km (1 miles) radius of Alonnisos. For those who prefer clothing-optional beaches, Marpounta Beach is a designated nudist beach. There is parking. Marpounta Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Paralia Rousoum Gialos
Paralia Rousoum Gialos is a 3-stars pebble beach, located in a 2 km (1 miles) radius of Alonnisos. There is parking. There are restrooms. There are shops. There are cafés. Paralia Rousoum Gialos is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible.
Paralia Spartines
Paralia Spartines is a 3-stars sandy beach, located in a 3 km (2 miles) radius of Alonnisos. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Paralia Votsi
Paralia Votsi is a 3-stars pebble beach, located in a 3 km (2 miles) radius of Alonnisos. There is parking. There are restrooms. There are shops. There are cafés. Paralia Votsi is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible.
Tsoukalia Beach
Tsoukalia Beach is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Alonnisos.
Tsoukalia Beach
Tsoukalia Beach is a 2-stars pebble beach, located in a 3 km (2 miles) radius of Alonnisos. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Milia Beach
Milia Beach is a 4-stars sandy beach, located in a 4 km (2 miles) radius of Alonnisos. There is parking. There are restrooms. There are cafés. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Tourkoneri Beach
Tourkoneri Beach is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Alonnisos.
Great Sand Beach
Great Sand Beach is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Alonnisos. There is parking. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Tzortzi Gyalos
Tzortzi Gyalos is a 4-stars sandy beach, located in a 5 km (3 miles) radius of Alonnisos. There is parking. There are cafés. Tzortzi Gyalos is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Chrisi Milia
Chrisi Milia is a 4-stars sandy beach, located in a 5 km (3 miles) radius of Alonnisos. There is parking. There are restrooms. There are cafés. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Paralia Chrisi Milia
Paralia Chrisi Milia is a 1-stars sandy beach, located in a 5 km (3 miles) radius of Alonnisos.
Rousoum Gyalos
Rousoum Gyalos is a 4-stars sandy beach, located in a 5 km (3 miles) radius of Alonnisos. There is parking. There are restrooms. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Tzortzi Gialos Beach
Tzortzi Gialos Beach is a 1-stars sandy beach, located in a 5 km (3 miles) radius of Alonnisos.
Alonnisos Weather
FEBRUARY 23
7°C / 8°C
overcast clouds: 85-100%humidity: 63% | wind: 4 km/h
FEBRUARY 24
8°C / 9°C
overcast clouds: 85-100%humidity: 76% | wind: 3 km/h
FEBRUARY 25
9°C / 12°C
light rainhumidity: 76% | wind: 3 km/h
FEBRUARY 26
12°C / 12°C
light rainhumidity: 72% | wind: 6 km/h
Sea Temperature in the Aegean Sea in Alonnisos: General Trends and Swimming Opportunities
Thessaly, Greece, is characterized by a Mediterranean climate along its coastal areas, which means that it tends to have warm, dry summers and mild, wetter winters. The region experiences a high amount of sunshine throughout the year, with temperatures that can reach up to 30°C in summer months.
Alonnisos is located in Europe in the Northern Hemisphere at a latitude of 39 degrees, along the shores of the Aegean Sea. Alonnisos lies within the Thessaly in Greece.
The average annual daytime air temperature in Alonnisos is 21°C (70°F), with the average nighttime temperature being 13°C (55°F). The highest average daily temperature occurs in August, reaching 32°C (89°F), while the lowest is in January at 11°C (52°F). As for nighttime temperatures, the minimum average temperature of 5°C (42°F) is recorded in February, and the maximum is in July, reaching 22°C (72°F).
According to historical data, Alonnisos experiences 73 rainy days per year, which accounts for 20 percent of all days in the year. On average, there are 6 rainy days each month. The wettest month is December, with 9 rainy days and 73 mm (2.9 inches) of precipitation, while the driest month is July, which typically has 3 rainy days and only 10 mm (0.4 inches) of precipitation.
The average annual water temperature in Aegean Sea in Alonnisos is 20°C (68°F). In January, the water reaches its lowest point of the year at 13°C (55°F), while in July, it peaks at 29°C (84°F). The months suitable for comfortable beach vacations and swimming in the Aegean Sea are July, August, and September. 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 Alonnisos
Nearby Cities
Frequently Asked Questions About Alonnisos and its Water Temperatures
What is the current sea temperature in Alonnisos?
The water temperature today in the Aegean Sea in Alonnisos is 58°F (14.2°C).
In which months is the water temperature in Alonnisos comfortable for swimming?
The water temperature in the Aegean Sea in Alonnisos is comfortable for swimming and beach vacations in July, August, and September.
What is the water temperature in Alonnisos during the winter?
The water temperature in the Aegean Sea in Alonnisos during the winter ranges from 13°C to 19°C (55°F to 66°F).
What is the water temperature in Alonnisos during the spring?
The water temperature in the Aegean Sea in Alonnisos during the spring ranges from 13°C to 25°C (55°F to 77°F).
What is the water temperature in Alonnisos during the summer?
The water temperature in the Aegean Sea in Alonnisos during the summer ranges from 19°C to 29°C (66°F to 84°F).
What is the water temperature in Alonnisos during the fall?
The water temperature in the Aegean Sea in Alonnisos during the fall ranges from 16°C to 28°C (61°F to 82°F).
Is it possible to swim in the sea in Alonnisos year-round?
No, it is not possible to swim in the Aegean Sea in Alonnisos year-round, the months suitable for comfortable swimming are July, August, and September.
Is Alonnisos a popular tourist destination for beach vacations?
Alonnisos 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 Alonnisos in the next month?
In March, the water temperature in the Aegean Sea in Alonnisos will range between 55°F (13°C) and 61°F (16°C)