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Lake Vouliagmeni

Lake

South of Athens, Lake Vouliagmeni is a small coastal brackish lake with warm, mineral-rich water and a managed swimming area; visitors use the lake for spa-like bathing and seaside cafés.

Lake Vouliagmeni AthensPiraeusElefsinaMegaraMarathon, GreecePeristeriKallitheaLavrioLake Vouliagmeni

Lake Vouliagmeni essentials

Address: Vouliagmeni Lake, Varkiza 166 71, Attica, Greece
Website: lakevouliagmeni.gr
Hours: Daily 9:00am-8:00pm (times may vary seasonally)
Admission: Adult €8-€12 (varies seasonally), discounts for seniors/children; some spa treatments extra
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About Lake Vouliagmeni

Lake Vouliagmeni is a small coastal brackish thermal lake in the Vouliagmeni area of southern Attica, Greece, known for naturally warm waters heated by subterranean geothermal activity. The site is managed as a paid swimming and spa facility with developed visitor amenities.

Its compact shoreline includes terraces, changing rooms and a controlled bathing area; the warm water temperature is a defining feature and draws day visitors year-round. The lake is also used for relaxation and therapeutic bathing rather than extensive water-sports.

Geologically the lake is connected to subterranean cavities and springs that maintain elevated temperatures and mineral content. The lake sits on the Saronic Gulf coast just south of the Athens metropolitan area and is a short drive from the city.

  • Thermal spa: The lake’s warm, mineral-rich waters are maintained year-round by geothermal inflow, making it a popular spa and swimming site with paid entry and facilities.
  • Proximity to Athens: Located on the coast just south of Athens, it is commonly visited on short excursions from the city.
Things to Do
When to Go

Best Time to Visit Lake Vouliagmeni

Year-round attraction because of the lake's thermal properties; spring through autumn is busiest for visitors and open-air lounging.

Spring-Autumn
April-October · 15-30°C (59-86°F)
Warm days suitable for the thermal lake and calming swims; spring flowers and autumn light are lovely.
Winter
November-March · 8-15°C (46-59°F)
Quieter period; the warm thermal water can feel especially restorative in cooler months.

Weather & Climate near Lake Vouliagmeni

Climate

Temperate climate with hot summers (peaking in July) and cool winters (coldest in January). Temperatures range from 7°C to 31°C. Semi-arid with limited rainfall with a pronounced dry season.

Air Quality: AQI 52 Moderate
Temperature & Rainfall
Temperature Range
31°
Warmest Month
7°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 7° - 13° 10° 47 mm - - 4.5 m/s - -
February - 7° - 13° 10° 47 mm - - 4.7 m/s - -
March - 9° - 15° 12° 48 mm - - 4.6 m/s - -
April - 12° - 19° 15° 27 mm - - 4.0 m/s - -
May - 16° - 24° 20° 14 mm - - 3.5 m/s - -
June - 20° - 29° 25° 6 mm - - 3.8 m/s - -
July - 23° - 31° 27° 6 mm - - 4.1 m/s - -
August - 23° - 31° 27° 7 mm - - 4.2 m/s - -
September - 20° - 28° 24° 8 mm - - 4.0 m/s - -
October - 16° - 23° 19° 41 mm - - 4.2 m/s - -
November - 12° - 18° 15° 60 mm - - 4.3 m/s - -
December - 9° - 15° 12° 64 mm - - 4.5 m/s - -
Getting There & Around

How to Get to Lake Vouliagmeni

Transit + Walk: From central Athens, take the Suburban Railway (Proastiakos) or buses toward the southern coast and change for local buses to Vouliagmeni; the lake is a short walk from the coastal road. Driving from Athens takes about 30-45 minutes depending on traffic.

Tips for Visiting Lake Vouliagmeni

  • Go early morning or late afternoon to avoid the busiest spa crowds-and to see the water glow in low sun.
  • Bring a towel and swimsuit if entering the thermal pool; modesty rules apply in Greece-no topless swimming in public pools.
  • Try the soda bath and the mineral-rich mud treatments offered at local vendors for a traditional experience.