Embalse del Arlanzón — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Embalse del Arlanzón, trends, monthly ranges and the forecast for the coming days.

Lake Arreo, Spain © By Basotxerri, CC BY-SA 4.0

Current Water Temperature

20.1°C

Today

20.7°C

Yesterday

20.1°C

A Week Ago

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Water Temperature in Embalse del Arlanzón today is 20.1°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart Over the Last 30 Days

From May 30 to June 30

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
JUN 23	20.1°C	17.0°C
JUN 24	20.1°C	17.0°C
JUN 25	20.1°C	17.0°C
JUN 26	20.1°C	17.0°C
JUN 27	20.7°C	17.0°C
JUN 28	20.7°C	17.0°C
JUN 29	20.7°C	17.0°C
JUN 30	20.7°C	17.0°C
JUL 1		20.0°C	20.1°C
JUL 2		20.0°C	20.1°C
JUL 3		20.0°C	20.1°C
JUL 4		20.0°C	20.1°C
JUL 5		20.0°C	20.1°C
JUL 6		20.0°C	20.1°C
JUL 7		20.0°C	20.1°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.

Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.

Monthly Water Temperature Range (Min, Max & Average)

Month	Min	Avg	Max
January	2°C	6°C	9°C
February	2°C	6°C	9°C
March	4°C	8°C	11°C
April	6°C	10°C	14°C
May	8°C	13°C	19°C
June	11°C	17°C	22°C
July	14°C	20°C	25°C
August	14°C	20°C	25°C
September	11°C	17°C	22°C
October	9°C	13°C	17°C
November	5°C	9°C	12°C
December	2°C	6°C	9°C

Embalse del Arlanzón: Water Temperature by Location

🇪🇸 Spain > Castile and León

Embalse del Arlanzón: Weather Forecast

July 1

° / °

overcast

rain: 0% | wind:

July 2

° / °

overcast

rain: 0% | wind:

July 3

° / °

partly cloudy

rain: 0% | wind:

July 4

° / °

mainly clear

rain: 0% | wind:

Location & Local Information

The Embalse del Arlanzón typically shows pronounced seasonal variation in water temperature because it sits in the continental climate of Castile and León. In winter the surface temperature often falls to about 3–8 °C (37–46 °F), making the water very cold for bathing. Spring temperatures generally rise to roughly 8–16 °C (46–61 °F) as the basin warms, while summer brings the warmest conditions, commonly in the range of 18–25 °C (64–77 °F) on calm, sunny days; in hot years small areas can reach the upper 20s °C (around 80 °F) but this is not typical. Autumn cooling returns temperatures to approximately 10–16 °C (50–61 °F). These ranges vary with recent weather, depth of the reservoir and inflow from the Arlanzón River.

Swimming at the Embalse del Arlanzón is subject to local rules and practical limitations. Many reservoirs used for water supply or managed by public authorities have formal restrictions on bathing to protect water quality and for safety reasons, and signage or municipal regulations may prohibit swimming. Even where informal bathing occurs, there are seldom lifeguards, and hazards such as steep banks, sudden depth changes and cold pockets make swimming risky. Before attempting to swim, it is sensible to check current local regulations and heed posted warnings.

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Frequently Asked Questions

What is the current water temperature in Embalse del Arlanzón?

Water Temperature in Embalse del Arlanzón today is 20.1°C.

What is the water temperature in Embalse del Arlanzón during the summer months?

The water temperature in Embalse del Arlanzón in summer fluctuates in the range of 11°C - 25°C.

Is it possible to swim in Embalse del Arlanzón (Spain) and what are the possibilities for this?

Swimming in Embalse del Arlanzón is possible in practice—people sometimes bathe in accessible coves and shallow areas—but there are no widespread official facilities, so it’s at your own risk and you should heed local signs, water-quality advisories and any restrictions or protected-area rules.