Lake Vouliagmeni

Lake Thermal seawater lake near Athens with warm springs

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.

Main image

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.
Lake Vouliagmeni
Vouliagmeni Lake, Varkiza 166 71, Attica, Greece
37.8077, 23.7860
Daily 9:00am-8:00pm (times may vary seasonally)
Adult €8-€12 (varies seasonally), discounts for seniors/children; some spa treatments extra

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.

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.

Temperature & Rainfall
Temperature Range
31°
Warmest Month
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 13°C and lows of 7°C. Moderate rainfall (47 mm).

Comfort

10°
Feels Like Cool
10°C
Temperature
13°

Weather

47 mm
Rainfall
4.5 m/s
Wind
Light Breeze

February

February is the coolest month with highs of 13°C and lows of 7°C. Moderate rainfall (47 mm).

Comfort

10°
Feels Like Cool
10°C
Temperature
13°

Weather

47 mm
Rainfall
4.7 m/s
Wind
Light Breeze

March

March is cool with highs of 15°C and lows of 8°C. Moderate rainfall (48 mm).

Comfort

12°
Feels Like Cool
12°C
Temperature
15°

Weather

48 mm
Rainfall
4.6 m/s
Wind
Light Breeze

April

April is cool with highs of 19°C and lows of 12°C. Light rainfall.

Comfort

15°
Feels Like Cool
15°C
Temperature
12° 19°

Weather

27 mm
Rainfall
4.0 m/s
Wind
Light Breeze

May

May is mild with highs of 24°C and lows of 16°C. Light rainfall.

Comfort

20°
Feels Like Mild
20°C
Temperature
16° 24°

Weather

14 mm
Rainfall
3.5 m/s
Wind
Light Breeze

June

June is warm with highs of 29°C and lows of 20°C. The driest month with just 6 mm.

Comfort

25°
Feels Like Warm
25°C
Temperature
20° 29°

Weather

6 mm
Rainfall
3.8 m/s
Wind
Light Breeze

July

July is the warmest month with highs of 31°C and lows of 23°C. The driest month with just 6 mm.

Comfort

27°
Feels Like Warm
27°C
Temperature
23° 31°

Weather

6 mm
Rainfall
4.1 m/s
Wind
Light Breeze

August

August is warm with highs of 31°C and lows of 23°C. Almost no rain.

Comfort

27°
Feels Like Warm
27°C
Temperature
23° 31°

Weather

7 mm
Rainfall
4.2 m/s
Wind
Light Breeze

September

September is mild with highs of 28°C and lows of 20°C. Almost no rain.

Comfort

24°
Feels Like Mild
24°C
Temperature
20° 28°

Weather

8 mm
Rainfall
4.0 m/s
Wind
Light Breeze

October

October is mild with highs of 23°C and lows of 16°C. Moderate rainfall (41 mm).

Comfort

19°
Feels Like Mild
19°C
Temperature
16° 23°

Weather

41 mm
Rainfall
4.2 m/s
Wind
Light Breeze

November

November is cool with highs of 18°C and lows of 12°C. Moderate rainfall (60 mm).

Comfort

15°
Feels Like Cool
15°C
Temperature
12° 18°

Weather

60 mm
Rainfall
4.3 m/s
Wind
Light Breeze

December

December is cool with highs of 15°C and lows of 9°C. The wettest month with 64 mm of rain.

Comfort

12°
Feels Like Cool
12°C
Temperature
15°

Weather

64 mm
Rainfall
4.5 m/s
Wind
Light Breeze

Nearby Attractions to Lake Vouliagmeni