Embalse de Entrepenas vs Embalse de San Juan

Both lakes are sitting at about the same temperature right now. They are roughly 140 km apart in Spain.

Embalse de Entrepenas

Guadalajara

20.8°C

warm · modelled estimate

October average
20.8°C
Warmest month
August · 25.0°C
Coldest month
8.0°C
Swim season
June–October

Embalse de Entrepenas in Guadalajara, Spain warms into the mid-20s °C for reliable summer swimming, and drops close to single digits in winter.

Embalse de San Juan

Madrid

20.8°C

warm · modelled estimate

October average
20.8°C
Warmest month
August · 25.0°C
Coldest month
8.0°C
Swim season
June–October

Madrid's 'beach' — the only reservoir near the capital where swimming is allowed.

Month by month

LakeJanFebMarAprMayJunJulAugSepOctNovDec
Embalse de Entrepenas9.1°C8.0°C9.1°C12.3°C16.5°C20.8°C23.9°C25.0°C23.9°C20.8°C16.5°C12.3°C
Embalse de San Juan9.1°C8.0°C9.1°C12.3°C16.5°C20.8°C23.9°C25.0°C23.9°C20.8°C16.5°C12.3°C

Monthly values are modelled from each lake's long-term winter and summer envelope, then refined with today's forecast air temperature for the headline reading.

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