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Ionian Sea water temperature in April

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In April sea water temperature all along the Ionian Sea coast is not yet warm enough for swimming and does not exceed 20°C. The warmest average water temperature Ionian Sea in April is 16.8°C (in Zacharo, Greece), and the coldest sea surface temperature is 15.1°C (in Marina di Sibari, Italy). To find out the sea temperature today and in the coming days, go to Current sea temperature of the Ionian Sea

Where you can swim in the Ionian Sea in April?

This data on the average monthly surface water temperature on the Ionian Sea coast in April. To see the details, select the country and then the city of your interest. Besides water temperature, you can also get information about the weather for today, tomorrow and the upcoming days, surf forecast, as well as the data on sunrise/sunset and moonrise/moonset at a given point on any given day.

 
2025
2024
2023
2022
2021
16.5°C
16.5°C
15.7°C
15.1°C
15.7°C
17.4°C
18.2°C
16°C
15.8°C
16°C
17.1°C
17.3°C
15.8°C
15.9°C
15.9°C
16.1°C
17.8°C
15.8°C
15.2°C
15.3°C
16.6°C
16.7°C
15.6°C
15.3°C
15.7°C
16.2°C
17.2°C
15.2°C
15.1°C
14.4°C

Countries bordering the Ionian Sea

Water temps of the Ionian Sea coast monthly

Where is the warm sea water in April?

Want to know where the water temperature in April is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

Other names for Ionian Sea

Jonsko more

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Our report for Ionian Sea is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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