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

Current Water Temperature

Water Temperature in Embalse del Arlanzón today is 18.2°C.

Embalse del Arlanzón: Water Temperature by Location

Embalse del Arlanzón: Weather Forecast

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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