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Water temperature in San Juan de Nieva in September

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Is it warm enough to swim in San Juan de Nieva in September? Average water temperature in San Juan de Nieva in September is 18.9°C and therefore is not suitable for comfortable swimming. The warmest sea in San Juan de Nieva in September is 20.8°C, and the coldest is 14.8°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in San Juan de Nieva

Changes water temperature in San Juan de Nieva in September 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
1 September19.4°C18.6°C18.6°C20.8°C
2 September20°C18.7°C18.5°C20.7°C
3 September19.6°C18.6°C18.1°C20.7°C
4 September19.8°C18.4°C17.7°C20.4°C
5 September 18.5°C18.5°C20.3°C
6 September 18.6°C17.8°C20.3°C
7 September 18.4°C17.5°C20.1°C
8 September 18.5°C17.8°C19.9°C
9 September 18.6°C18.6°C19.9°C
10 September 18.5°C17.5°C20.3°C
11 September 18.1°C18.1°C20°C
12 September 18.4°C17.5°C20.3°C
13 September 18.4°C17.8°C20.2°C
14 September 18°C16.5°C20.4°C
15 September 17.4°C17.4°C20°C
Day 2025 2024 Min Max
16 September 16.9°C16.9°C20.1°C
17 September 16.3°C16.3°C20.1°C
18 September 16.2°C16.2°C20.2°C
19 September 15.5°C15.5°C19.1°C
20 September 15.7°C15.7°C19.5°C
21 September 14.9°C14.9°C20.4°C
22 September 14.8°C14.8°C19.6°C
23 September 15.5°C15.5°C20°C
24 September 16.4°C16.3°C19.8°C
25 September 16.9°C16.1°C19.7°C
26 September 17.2°C16.2°C19.4°C
27 September 17.1°C16.2°C19.8°C
28 September 17.2°C17.2°C19.5°C
29 September 17.8°C17.8°C19.7°C
30 September 17.5°C16°C19.9°C
San Juan de Nieva water temp chart in September

Average water temperature in San Juan de Nieva in September over a decade

20152016201720182019
18.6°C19.2°C19.5°C17.5°C17.6°C
20202021202220232024
19.2°C18°C19°C19.7°C17.4°C

San Juan de Nieva water temperature during other months:

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

Where is the warm sea water in September?

Want to know where the water temperature in September 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

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for San Juan de Nieva 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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