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Onia
Water Temperature in the Aegean Sea in Onia, Greece: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Onia 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 Onia
17.1°C
TODAY
17.2°C
YESTERDAY
17.4°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Aegean Sea in Onia is 17.1°C. The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people.
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 Onia Over the Last 30 Days
The water temperature in Onia 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 Onia will remain nearly unchanged in the coming days, its value will be 17.1°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 Greece to enhance accuracy.
Water temperature data for Onia 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 | 17.4°C | 17.3°C | |
Feb 16 | 17.0°C | 17.5°C | |
Feb 17 | 17.5°C | 17.3°C | |
Feb 18 | 17.5°C | 17.0°C | |
Feb 19 | 17.1°C | 17.3°C | |
Feb 20 | 16.9°C | 17.3°C | |
Feb 21 | 17.2°C | 17.3°C | |
Feb 22 | 17.1°C | 17.0°C | |
Feb 23 | 17.3°C | 17.1°C | |
Feb 24 | 17.3°C | 17.1°C | |
Feb 25 | 17.5°C | 17.1°C | |
Feb 26 | 17.3°C | 17.1°C | |
Feb 27 | 17.0°C | 17.1°C | |
Feb 28 | 16.8°C | 17.1°C | |
Mar 1 | 17.0°C | 17.1°C | |
Mar 2 | 17.3°C | 17.1°C |
Sea Temperature in Onia Throughout the Year
Throughout the year, the sea temperature in Onia exceeds 77°F (25°C) for 36 days, exceeds 72°F (22°C) for 156 days, and exceeds 64°F (18°C) for 260 days.
Below is the annual chart of sea temperature changes in the Aegean Sea in Onia.
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January
Minimum | Average | Maximum |
---|---|---|
17°C | 19°C | 21°C |
February
Minimum | Average | Maximum |
---|---|---|
16°C | 18°C | 20°C |
March
Minimum | Average | Maximum |
---|---|---|
15°C | 17°C | 19°C |
April
Minimum | Average | Maximum |
---|---|---|
16°C | 18°C | 20°C |
May
Minimum | Average | Maximum |
---|---|---|
16°C | 19.5°C | 23°C |
June
Minimum | Average | Maximum |
---|---|---|
19°C | 22.5°C | 26°C |
July
Minimum | Average | Maximum |
---|---|---|
21°C | 24°C | 27°C |
August
Minimum | Average | Maximum |
---|---|---|
23°C | 25°C | 27°C |
September
Minimum | Average | Maximum |
---|---|---|
22°C | 25°C | 28°C |
October
Minimum | Average | Maximum |
---|---|---|
20°C | 23°C | 26°C |
November
Minimum | Average | Maximum |
---|---|---|
20°C | 22.5°C | 25°C |
December
Minimum | Average | Maximum |
---|---|---|
18°C | 20°C | 22°C |
Monthly Water Temperature Histogram for Aegean Sea in Onia
You can explore detailed data on how the water temperature in Onia varies each month:
What Beaches Are There In and Around Onia?
Exotic
Exotic is a 4-stars sandy beach, is located directly in Onia. For those who prefer clothing-optional beaches, Exotic is a designated nudist beach. There is parking. There are restrooms. There are cafés. Exotic 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.
Agios Stefanos
Agios Stefanos is a 4-stars sandy beach, is located directly in Onia. There is parking. There are restrooms. There are cafés. Agios Stefanos 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.
Kardamena
Kardamena is a 5-stars sandy beach, located in a 2 km (1 miles) radius of Onia. There are lifeguards on the beach. For those who prefer clothing-optional beaches, Kardamena is a designated nudist beach. There is parking. There are restrooms. There are cafés. Kardamena 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.
Limnionas
Limnionas is a 4-stars sandy beach, located in a 2 km (1 miles) radius of Onia. There are lifeguards on the beach. There is parking. There are cafés. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Camel Beach
Camel Beach is a 3-stars sandy beach, located in a 2 km (1 miles) radius of Onia. There is parking. There are cafés. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Paradise
Paradise is a 4-stars sandy beach, located in a 3 km (2 miles) radius of Onia. There is parking. There are restrooms. There are cafés. Paradise 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.
Sunny
Sunny is a 4-stars sandy beach, located in a 5 km (3 miles) radius of Onia. There is parking. There are restrooms. There are cafés. Sunny 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.
Magic Beach
Magic Beach is a 3-stars sandy beach, located in a 6 km (4 miles) radius of Onia. There is parking. There are cafés. Magic Beach 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.
Fanos
Fanos is a 3-stars sandy beach, located in a 8 km (5 miles) radius of Onia. There is parking. There are cafés. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Onia Weather
FEBRUARY 23
6°C / 9°C
clear skyhumidity: 46% | wind: 7 km/h
FEBRUARY 24
8°C / 11°C
broken clouds: 51-84%humidity: 44% | wind: 2 km/h
FEBRUARY 25
10°C / 12°C
overcast clouds: 85-100%humidity: 67% | wind: 3 km/h
FEBRUARY 26
12°C / 13°C
clear skyhumidity: 60% | wind: 2 km/h



Sea Temperature in the Aegean Sea in Onia: General Trends and Swimming Opportunities
Kos, Greece, located in the coastal region, experiences a Mediterranean climate with long, hot, dry summers and mild, wet winters. In summer, the temperatures frequently reach above 30°C (86°F), whereas in winter, they rarely drop below 10°C (50°F).
Onia is located in Europe in the Northern Hemisphere at a latitude of 37 degrees, along the shores of the Aegean Sea. Onia lies within the Kos in Greece.
The average annual daytime air temperature in Onia is 22°C (72°F), with the average nighttime temperature being 15°C (59°F). The highest average daily temperature occurs in July, reaching 30°C (86°F), while the lowest is in February at 14°C (57°F). As for nighttime temperatures, the minimum average temperature of 7°C (45°F) is recorded in February, and the maximum is in August, reaching 24°C (74°F).
According to historical data, Onia experiences 56 rainy days per year, which accounts for 15 percent of all days in the year. On average, there are 5 rainy days each month. The wettest month is December, with 10 rainy days and 146 mm (5.8 inches) of precipitation, while the driest month is August, which typically has 0 rainy days and only 2 mm (0.1 inches) of precipitation.
The average annual water temperature in Aegean Sea in Onia is 21°C (70°F). In March, the water reaches its lowest point of the year at 15°C (59°F), while in September, it peaks at 28°C (82°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 28°C (82°F) on some days.
Geographical Location of Onia
Nearby Cities
Frequently Asked Questions About Onia and its Water Temperatures
What is the current sea temperature in Onia?
The water temperature today in the Aegean Sea in Onia is 63°F (17.1°C).
In which months is the water temperature in Onia comfortable for swimming?
The water temperature in the Aegean Sea in Onia is comfortable for swimming and beach vacations in July, August, and September.
What is the water temperature in Onia during the winter?
The water temperature in the Aegean Sea in Onia during the winter ranges from 16°C to 22°C (61°F to 72°F).
What is the water temperature in Onia during the spring?
The water temperature in the Aegean Sea in Onia during the spring ranges from 15°C to 23°C (59°F to 73°F).
What is the water temperature in Onia during the summer?
The water temperature in the Aegean Sea in Onia during the summer ranges from 19°C to 27°C (66°F to 81°F).
What is the water temperature in Onia during the fall?
The water temperature in the Aegean Sea in Onia during the fall ranges from 20°C to 28°C (68°F to 82°F).
Is it possible to swim in the sea in Onia year-round?
No, it is not possible to swim in the Aegean Sea in Onia year-round, the months suitable for comfortable swimming are July, August, and September.
What sea temperatures can I expect in Onia in the next month?
In March, the water temperature in the Aegean Sea in Onia will range between 59°F (15°C) and 66°F (19°C)