Water temperature in Isthmia in December

Is it warm enough to swim in Isthmia in December? Average water temperature in Isthmia in December is 17.9°C and therefore is not suitable for comfortable swimming. The warmest sea in Isthmia in December is 20.7°C, and the coldest is 15.4°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Isthmia

Changes water temperature in Isthmia in December 2024, 2023

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

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2024	2023	Min	Max
1 December	19.7°C	19.7°C	17.2°C	20.6°C
2 December	19.5°C	19.5°C	17.2°C	20.7°C
3 December	19.2°C	19.4°C	17.2°C	20.4°C
4 December	18.9°C	19.4°C	17.2°C	20.2°C
5 December	18.8°C	19.3°C	17.4°C	20°C
6 December	18.6°C	19.2°C	17°C	20°C
7 December	19.2°C	19.3°C	17.2°C	20.3°C
8 December	19.3°C	19.6°C	17.3°C	20.1°C
9 December	19°C	19.4°C	17.2°C	19.8°C
10 December	19.1°C	19.3°C	17.2°C	19.6°C
11 December	18.7°C	19.1°C	17.1°C	19.4°C
12 December	18.5°C	18.7°C	17.2°C	19.3°C
13 December	18.4°C	18.8°C	16.9°C	19.3°C
14 December	18.1°C	18.8°C	16.4°C	19.4°C
15 December	18°C	18.4°C	16.2°C	19.5°C

Day	2024	2023	Min	Max
16 December	18.5°C	18.2°C	16.1°C	19.5°C
17 December	18.3°C	18.7°C	15.9°C	19.5°C
18 December	17.9°C	18.5°C	15.8°C	19.2°C
19 December	18.3°C	18.4°C	15.9°C	19°C
20 December	18.5°C	18.2°C	16.2°C	19.1°C
21 December	18.1°C	18.3°C	16.3°C	19.2°C
22 December	18.1°C	18.3°C	16.3°C	19.2°C
23 December	18.3°C	18.3°C	16.2°C	19.4°C
24 December	18°C	18.2°C	16.1°C	19.1°C
25 December	17.8°C	18.5°C	16.1°C	19°C
26 December	17.6°C	17.9°C	15.9°C	18.8°C
27 December	17.4°C	17.9°C	15.9°C	18.6°C
28 December	17.3°C	17.9°C	15.7°C	18.4°C
29 December	17.1°C	17.8°C	15.6°C	18.2°C
30 December	16.9°C	18.2°C	15.5°C	18.2°C
31 December	16.9°C	17.9°C	15.4°C	17.9°C

Average water temperature in Isthmia in December over a decade

2015	2016	2017	2018	2019
17.6°C	17.7°C	17.8°C	17.8°C	19.4°C

2020	2021	2022	2023	2024
18.3°C	18°C	18°C	18.7°C	18.3°C

Isthmia sea state in December

Chart comparing the height of waves in Isthmia in December 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.

Isthmia water temperature during other months:

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

Temperature in neighboring cities

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

	Avr	Min	Max
Psatha	17.5°C	15.1°C	20.1°C
Porto Germeno	17.5°C	15.1°C	20.1°C
Salamis	18°C	15.1°C	20.8°C
Sykia	17.3°C	15.1°C	20°C
Aegina	18°C	15.2°C	20.8°C
Batsi	17.8°C	15°C	20.6°C
Methana	17.9°C	15.3°C	20.8°C
Athens	17.8°C	14.9°C	20.9°C
Eleusis	17.6°C	14.9°C	20.5°C
Keratsini	17.7°C	14.8°C	20.6°C

Attica photo gallery

If you have interesting photos of this place, you can upload them here. Photos will be available to all users after verification by the moderator.

Vote for Attica best beach

Get widget or API for your website

Our report for Isthmia 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.

Region

Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature