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Sounio National Park

National Park

Cape Sounion's coastal park in Attica contains the Temple of Poseidon, cliffside walks and Aegean sea views; visitors combine archaeology, seaside swimming and sunset photography.

Sounio National Park AthensPiraeusElefsinaMegaraMarathon, GreecePeristeriKallitheaLavrioSounio National Park
In this guide

Sounio National Park essentials

Address: Cape Sounion, Lavreotiki, Attica, Greece
Hours: Visitor hours vary seasonally (archaeological site hours); typically open during daylight hours, closed on some national holidays
Admission: Park entry and archaeological site fees may apply; check Hellenic Ministry or local park authority for current rates

About Sounio National Park

Sounio National Park is a protected coastal area in the southern part of the Attica region of Greece, encompassing the promontory of Cape Sounion. The area is noted for its dramatic coastal cliffs, sea views and Mediterranean biotopes.

The park’s shoreline offers walking and viewing opportunities along rocky headlands and beaches; visitors commonly come for scenic views, coastal habitat and access to the archaeological site on Cape Sounion. The landscape is predominantly scrub, rocky shore and pine-covered slopes.

The landform and coastal features developed naturally; the most prominent human-made feature in the vicinity is the ancient Temple of Poseidon on Cape Sounion, which dates to the 5th century BCE. Management of the park focuses on habitat protection, public access and the preservation of archaeological and scenic values.

Sounio National Park sits on the southernmost tip of the Attica peninsula overlooking the Aegean Sea, roughly along the coastal route southeast of central Athens.

  • Temple of Poseidon nearby: The Cape Sounion area is best known for the nearby Temple of Poseidon, which is a frequent reason visitors travel to the park for coastal views and sunset visits.
Things to Do
When to Go

Best Time to Visit Sounio National Park

Best visited in late afternoon for sunset, or in spring and autumn for comfortable touring and fewer crowds.

Spring
March-May · 55-75°F (13-24°C)
Pleasant daytime temperatures for exploring the site and watching the coast.
Summer
June-August · 75-95°F (24-35°C)
Hot but ideal for sunset visits; arrive before the peak heat and stay for evening light.
Autumn
September-October · 60-80°F (16-27°C)
Warm seas and fewer tourists than peak summer months.

Weather & Climate near Sounio National Park

Climate

Sounio National Park's climate is classified as Hot-Summer Mediterranean - Hot-Summer Mediterranean climate with hot summers (peaking in July) and cool winters (coldest in January). Temperatures range from 8°C to 31°C. Semi-arid with limited rainfall with a pronounced dry season.

Air Quality: AQI 44 Good
Best Time to Visit
JulyAugustJune
Temperature & Rainfall
Temperature Range
39°
Warmest Month
3°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Good 8° - 13° 11° 53 mm partly cloudy 75% 4.8 m/s 0.3 low 9.8h
February Good 8° - 14° 11° 50 mm partly cloudy 76% 4.9 m/s 0.5 low 10.7h
March Very Good 9° - 15° 12° 48 mm partly cloudy 76% 4.8 m/s 0.9 moderate 11.8h
April Excellent 12° - 19° 16° 26 mm some cloud 75% 4.0 m/s 1.3 high 13.0h
May Ideal 16° - 24° 20° 14 mm some cloud 74% 3.5 m/s 1.7 very high 14.0h
June Ideal 21° - 29° 25° 5 mm clear 70% 4.1 m/s 2.2 extreme 14.5h
July Ideal 23° - 31° 29° 4 mm clear 66% 4.5 m/s 2.3 extreme 14.3h
August Ideal 23° - 31° 27° 5 mm clear 66% 4.7 m/s 2.0 very high 13.4h
September Ideal 20° - 28° 24° 7 mm mostly sunny 68% 4.2 m/s 1.4 high 12.3h
October Excellent 16° - 23° 20° 39 mm some cloud 72% 4.5 m/s 0.8 moderate 11.1h
November Very Good 13° - 18° 15° 59 mm partly cloudy 74% 4.6 m/s 0.4 low 10.0h
December Good 10° - 15° 12° 66 mm partly cloudy 75% 4.7 m/s 0.2 low 9.5h
Getting There & Around

How to Get to Sounio National Park

Cape Sounion is roughly 70 km (about 1.5-2 hours by car) southeast of central Athens along the coastal Attiki Odos and then the coastal route toward Lavrio. Organized tours and regional buses depart Athens; driving allows stops along the scenic Saronic coast. Parking is available near the archaeological site.

Tips for Visiting Sounio National Park

  • Visit the Temple of Poseidon at sunset - the light on the Doric columns as the sun drops into the Aegean is the classic image for a reason.
  • Combine a trip with a drive along the coastal road from Athens (about 1.5-2 hours) to make the most of sea views and small seaside tavernas en route.