Water temperature in Agios Ioannis in September

Is it warm enough to swim in Agios Ioannis in September? Average water temperature in Agios Ioannis in September is 24.9°C and therefore suitable for comfortable swimming. The warmest sea in Agios Ioannis in September is 27.6°C, and the coldest is 21.2°C. Average high air temperature in Agios Ioannis in September is 24°C, and average low temperature is 18°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Agios Ioannis

Changes water temperature in Agios Ioannis in September 2025, 2024

To get an accurate forecast for the water temperature in Agios Ioannis for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Agios Ioannis, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of September.

Average water temperature in Agios Ioannis in September over a decade

Chart comparing the height of waves in Agios Ioannis in September over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

This data display average monthly climate indicators in Agios Ioannis in September based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

You can also view information about water temperature for other months by clicking on the month button below

The nearest locations with the average water temperature in September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

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Our report for Agios Ioannis 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.