Lake Mornos Reservoir

Greek reservoir supplying Athens and regional agriculture

Artificial reservoir in central Greece formed by the Mornos Dam, notable for fishing, hiking and vantage points over the dam used in water-supply engineering visits.

Main image

Lake Mornos at a Glance#

Address: Mornos River basin, mainland Greece (regional access roads from Central Greece)

Hours: Open 24 hours

Admission: Free (reservoir area access)

About Lake Mornos#

Lake Mornos is an artificial reservoir in central Greece identified at latitude 38.53205 and longitude 22.14706. It is formed by the Mornos River and functions as a water supply source for regions of Greece.

As a well-known regional reservoir, the lake and its dam attract visitors interested in engineering structures and landscape views along the reservoir shoreline. Roads and viewpoints near the dam provide vantage points for observing the water body and surrounding mountains.

The lake exists because of the construction of the Mornos dam and associated works during the 20th century to regulate flow and supply water. The impoundment transformed the river valley into a managed reservoir used for municipal water supply and related infrastructure.

Geographically it sits inland in central Greece in a mountainous catchment. The reservoir lies within the drainage of the Mornos River and is accessed from surrounding regional towns and roads.

  • Function: Serves as a managed water supply source for parts of central Greece, including urban areas.

How to Get to Lake Mornos#

Access is by regional roads from nearby towns in Central Greece; the reservoir is usually reached by car. Exact approach routes vary depending on the chosen shore and local road signage.

Tips for Visiting Lake Mornos#

  • If the objective is photography, aim for late afternoon when the dam and reservoir reflect the lowering sun.
  • Check for any seasonal restrictions if planning boating - reservoirs may have regulated zones.
  • Combine a visit with a trip to nearby archaeological sites or small villages for a fuller sense of region.

Best Time to Visit Lake Mornos#

Spring and autumn generally deliver the best scenery and mild weather for visiting reservoirs and nearby landscapes.

Spring
March-May · 10-22°C (50-72°F)
Higher water levels and greener hillsides make for more dramatic scenery.
Autumn
September-November · 15-25°C (59-77°F)
Good light and comfortable temperatures for exploring.

Weather & Climate near Lake Mornos#

Climate

Lake Mornos's climate is classified as Hot-Summer Mediterranean - Hot-Summer Mediterranean climate with warm summers (peaking in July) and cold winters (coldest in January). Temperatures range from 2°C to 30°C. Moderate rainfall (722 mm/year).

Air Quality: AQI 49 Good
Temperature & Rainfall
Temperature Range
30°
Warmest Month
2°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 2° - 10° 4° 85 mm - - 2.8 m/s - -
February - 2° - 10° 4° 87 mm - - 3.2 m/s - -
March - 4° - 13° 7° 75 mm - - 2.8 m/s - -
April - 7° - 17° 12° 58 mm - - 2.6 m/s - -
May - 11° - 22° 17° 38 mm - - 2.5 m/s - -
June - 15° - 28° 21° 21 mm - - 2.5 m/s - -
July - 17° - 30° 24° 16 mm - - 2.7 m/s - -
August - 17° - 30° 23° 18 mm - - 2.6 m/s - -
September - 14° - 26° 20° 31 mm - - 2.5 m/s - -
October - 10° - 21° 15° 76 mm - - 2.5 m/s - -
November - 6° - 15° 11° 109 mm - - 2.4 m/s - -
December - 3° - 11° 5° 108 mm - - 2.7 m/s - -