World sea water temperatures

Water temperature in San Marcos

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This data the coastal San Marcos sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in San Marcos

Water temperature in San Marcos today is 23.6°C. Based on our historical data over a period of ten years, the warmest water in this day in San Marcos was recorded in 2023 and was 24.7°C, and the coldest was recorded in 2018 at 22.9°C. Sea water temperature in San Marcos is expected to rise to 23.9°C in the next 10 days. September average water temperature in San Marcos is 23.8°C, the minimum temperature is 22.5°C, and the maximum is 26°C.

The swimming season in San Marcos lasts from April to January. During those months, San Marcos water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in San Marcos in winter reaches 20.1°C, in spring 19.7°C, in summer the average temperature rises to 22.3°C, and in autumn it is 23.3°C.

San Marcos water temperature now


5 September 2025
today temp
23.6°C
4 September 2025
yesterday temp
23.5°C


The sea salinity in San Marcos is 37.12‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in San Marcos for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for San Marcos. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast San Marcos. Data in table shown for 5 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

0-3 h3-6 h6-9 h9-12 h
5' 7"5' 7"5' 5"5' 4"
1.69 m1.69 m1.66 m1.63 m
12-15 h15-18 h18-21 h21-24 h
5' 3"5' 1"4' 11"4' 9"
1.6 m1.55 m1.5 m1.45 m

Surf report in San Marcos

San Marcos wave height and direction

San Marcos weather forecast

San Marcos wind speed and direction

Current temperature and weather

Data in a table show San Marcos temperature today (5 September 2025). For more information and forecast for a few days, go to the weather forecast San Marcos.

0-3 h3-6 h6-9 h9-12 h
22.8°C22.8°C22.4°C23.7°C
12-15 h15-18 h18-21 h21-24 h
25.4°C26.1°C25°C23.8°C

You may also be interested in other sections of our site for San Marcos: Sunrise and Sunset, Tides

San Marcos water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in San Marcos. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in San Marcos on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

MonthAvrMinMax
January20°C18.5°C21.5°Cwarm
Sea water temperature in San Marcos in January
February19.3°C18°C20.8°Ccold
Sea water temperature in San Marcos in February
March19.2°C17.6°C20.6°Ccold
Sea water temperature in San Marcos in March
April19.6°C18.1°C21.3°Ccold
Sea water temperature in San Marcos in April
May20.4°C19°C22.3°Cwarm
Sea water temperature in San Marcos in May
June21.5°C19.5°C23.8°Cwarm
Sea water temperature in San Marcos in June
July22.3°C20.8°C24°Cwarm
Sea water temperature in San Marcos in July
August23.1°C21.9°C24.6°Cwarm
Sea water temperature in San Marcos in August
September23.8°C22.5°C26°Cwarm
Sea water temperature in San Marcos in September
October23.7°C22°C25.4°Cwarm
Sea water temperature in San Marcos in October
November22.5°C20.4°C24.4°Cwarm
Sea water temperature in San Marcos in November
December21.1°C19.2°C22.8°Cwarm
Sea water temperature in San Marcos in December

Chart monthly average water temperature in San Marcos

Water temperature in San Marcos

Where is the warmest sea water in the world?

If you want to plan a vacation on the beach and enjoy the warm sea, choose the day of the year, region and the minimum comfortable sea/ocean temperature that interests you. As a result, you will get a list of countries and cities in which the average sea temperature or maximum temperature on this day over the past 10 years exceeds your chosen value

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

Nearby beaches and cities

The nearest beaches and cities from San Marcos with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

WaterWeatherWave
Puerto de la Cruz23.6°C25°C1.6 m
Los Realejos23.6°C25°C1.6 m
Playa del Socorro23.6°C25°C1.6 m
Santa Ursula23.7°C25°C1.73 m
La Quinta23.7°C25°C1.73 m
Playa Jardin23.7°C25°C1.73 m
Playa Maria Jimenez23.7°C25°C1.73 m
El Caleton23.7°C25°C1.73 m
Puerto de Santiago24.6°C27°C0.95 m
Los Gigantes24.6°C27°C0.95 m

Tenerife photo gallery

  • Montaña Amarilla
  • Tenerife
  • Tenerife
  • Amarilla Golf coast viewed from Montaña Amarilla

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Other names for San Marcos

Playa de San Marcos

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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 Marcos 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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