Water temperature in Santander (Cantabria) in May

Is it warm enough to swim in Santander in May? Average water temperature in Santander in May is 15.3°C and therefore is not suitable for comfortable swimming. The warmest sea in Santander in May is 18.4°C, and the coldest is 13°C. Average high air temperature in Santander in May is 19°C, and average low temperature is 11°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Santander

Changes water temperature in Santander in May 2025, 2024

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

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 May	14.8°C	14°C	13°C	15.6°C
2 May	15.5°C	14.1°C	13°C	15.8°C
3 May	15.4°C	14.1°C	13.1°C	15.9°C
4 May	15.3°C	14.2°C	13.5°C	16°C
5 May	15.3°C	14.3°C	13.6°C	16°C
6 May	15.2°C	14.3°C	13.6°C	16.5°C
7 May	15.2°C	14.4°C	13.6°C	16.3°C
8 May	15.2°C	14.9°C	13.6°C	16.4°C
9 May	15.1°C	14.9°C	13.7°C	16.3°C
10 May	15.1°C	15.1°C	13.8°C	16.6°C
11 May	15°C	15°C	14.1°C	16.6°C
12 May	15.1°C	15°C	14.1°C	16.5°C
13 May	15.1°C	15°C	14.3°C	16.6°C
14 May	15.2°C	15.1°C	14°C	16.6°C
15 May	15°C	15.1°C	14°C	16.5°C

Day	2025	2024	Min	Max
16 May	15.3°C	15.2°C	14.2°C	16.6°C
17 May	15.6°C	15°C	14.2°C	16.7°C
18 May	15.6°C	15.1°C	14°C	16.7°C
19 May	15.4°C	15.2°C	13.9°C	16.7°C
20 May	15.6°C	15.4°C	14.1°C	16.7°C
21 May	15.6°C	16.3°C	14°C	16.6°C
22 May	16.6°C	16.8°C	14.2°C	17.2°C
23 May	17.2°C	16.9°C	14°C	17.3°C
24 May	17.4°C	17.4°C	14.1°C	17.4°C
25 May	17.9°C	17.8°C	14.1°C	17.9°C
26 May	17.6°C	17.7°C	14.3°C	17.7°C
27 May	17.2°C	17°C	14.4°C	17.2°C
28 May	17.2°C	17°C	14.4°C	17.4°C
29 May	17.5°C	17.1°C	14.1°C	17.7°C
30 May	17.5°C	17.1°C	14.1°C	17.6°C
31 May	17.4°C	16.8°C	14.1°C	18.4°C

Average water temperature in Santander in May over a decade

2016	2017	2018	2019	2020
15.1°C	15°C	15.1°C	14.4°C	16.1°C

2021	2022	2023	2024	2025
15.2°C	15.7°C	15.9°C	15.6°C	15.9°C

Santander sea state in May

Chart comparing the height of waves in Santander in May 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.

Weather and climate in Santander in May

This data display average monthly climate indicators in Santander in May 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

Average HIGH temperature19°C
Average LOW temperature11°C
Average humidity
74
Average rainfall days10 days
Average rainfall3.1''/79mm
Average daylight15h
Average sunshine5.5h
Average UV index7

Santander 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 May. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Sardinero	15.3°C	13°C	18.4°C
Soto de la Marina	15.3°C	13°C	18.4°C
El Astillero	15.3°C	13°C	18.3°C
Loredo	15.3°C	13°C	18.8°C
Somo	15.3°C	13°C	18.8°C
Playa de la Magdalena	15.3°C	13°C	18.8°C
Langre	15.3°C	13°C	18.7°C
Galizano	15.3°C	13°C	18.7°C
Suances	15.2°C	13°C	17.7°C
Liencres	15.2°C	13°C	17.7°C

Santander photo gallery

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Our report for Santander 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