Heptastadion

Archaeological Site Ancient causeway in Alexandria connecting city to island

The Heptastadion was the ancient causeway linking Pharos island to Alexandria; its submerged remains and related coastal archaeology interest historians and museum visitors.

Main image

The Heptastadion was an ancient causeway constructed in Hellenistic Alexandria that linked the city to the island of Pharos; its name literally means “seven stadia.” It was a major engineering feature of Alexandria’s harbour system in the Hellenistic period.

Built in the early Hellenistic period under the Ptolemaic rulers, the Heptastadion separated Alexandria’s eastern and western harbour basins and provided a land connection to Pharos island, the site of the famous Pharos lighthouse. Over centuries it accumulated silt and was modified by later harbour works and urban development.

The ancient causeway crossed the entrance to Alexandria’s harbours on Egypt’s Mediterranean coast; traces lie in the modern eastern harbour area of the city and under sections of the contemporary shoreline.

  • Length: The name means "seven stadia," reflecting its original length of roughly seven ancient stadia or about 1.3 kilometres.
Heptastadion
31.1994, 29.8850

How to Get to Heptastadion #

The site of the ancient Heptastadion lies within Alexandria’s harbour area. It is reached from central Alexandria by road in a few minutes; taxis and local buses run along the Corniche (the coastal road) and across the harbour area. If you are in Alexandria city centre, a short taxi or car ride (typically under 10 minutes) along the waterfront Corniche will bring you to viewpoints over the old harbour where the Heptastadion once stood.

Tips for Visiting Heptastadion #

  • Understand the Heptastadion is an ancient, now-submerged causeway; the best way to appreciate its location is from the Corniche around Qaitbay Citadel and from boat trips that trace Alexandria's historic harbors.
  • Combine a visit with the Bibliotheca Alexandrina and a guided harbor boat trip to see where the causeway once divided the two harbors-interpretive displays in local museums help place the submerged remains in context.
  • If you want archaeological detail, look for exhibits or guided archaeology tours in Alexandria that discuss the Heptastadion and the transformation of the Eastern and Western harbors rather than expecting visible ruins onshore.

Best Time to Visit Heptastadion #

Visit in the cooler months (October-April) to avoid the intense Mediterranean summer heat and have more comfortable outdoor conditions.

Autumn-Spring (cooler months)
October-April · 12-25°C
Milder temperatures and more comfortable sightseeing around coastal Alexandria - best to avoid peak summer heat.
Summer
June-August · 25-35°C
Hot and humid inland; daytime heat can make outdoor exploration tiring and less comfortable.

Weather & Climate near Heptastadion #

Climate

Heptastadion's climate is classified as Hot Desert - Hot Desert climate with hot summers (peaking in August) and cool winters (coldest in January). Temperatures range from 9°C to 31°C. Very dry conditions with minimal rainfall with a pronounced dry season.

Air Quality: AQI 88 Moderate
Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
45°
Warmest Month
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 18°C and lows of 9°C. The wettest month with 50 mm of rain and partly cloudy skies.

74 Very Good

Comfort

14°
Feels Like Cool
14°C
Temperature
19°
68%
Humidity
Humid

Weather

50 mm
Rainfall
3.7 m/s
Wind
Light Breeze
0.6
UV Index
Moderate
10.2h daylight

February

February is cool with highs of 19°C and lows of 10°C. Light rainfall and partly cloudy skies.

78 Very Good

Comfort

14°
Feels Like Cool
14°C
Temperature
10° 19°
66%
Humidity
Humid

Weather

23 mm
Rainfall
3.8 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
10.9h daylight

March

March is cool with highs of 21°C and lows of 11°C. Light rainfall.

84 Excellent

Comfort

16°
Feels Like Cool
16°C
Temperature
11° 21°
63%
Humidity
Humid

Weather

13 mm
Rainfall
4.5 m/s
Wind
Light Breeze
1.3
UV Index
High
11.9h daylight

April

April is mild with highs of 24°C and lows of 14°C. Almost no rain and mostly sunny skies.

94 Ideal

Comfort

19°
Feels Like Mild
19°C
Temperature
14° 24°
60%
Humidity
Humid

Weather

4 mm
Rainfall
4.7 m/s
Wind
Light Breeze
1.7
UV Index
Very High
12.8h daylight

May

May is mild with highs of 26°C and lows of 17°C. Almost no rain and mostly sunny skies.

96 Ideal

Comfort

22°
Feels Like Mild
22°C
Temperature
17° 26°
58%
Humidity
Humid

Weather

1 mm
Rainfall
3.9 m/s
Wind
Light Breeze
2.1
UV Index
Extreme
13.6h daylight

June

June is warm with highs of 29°C and lows of 20°C. The driest month with just 0 mm and clear sunny skies.

100 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
20° 29°
60%
Humidity
Humid

Weather

0 mm
Rainfall
4.1 m/s
Wind
Light Breeze
2.4
UV Index
Extreme
14.0h daylight

July

July is warm with highs of 30°C and lows of 22°C. The driest month with just 0 mm and clear sunny skies.

100 Ideal

Comfort

26°
Feels Like Warm
26°C
Temperature
22° 30°
62%
Humidity
Humid

Weather

0 mm
Rainfall
3.9 m/s
Wind
Light Breeze
2.4
UV Index
Extreme
13.8h daylight

August

August is the warmest month with highs of 31°C and lows of 23°C. The driest month with just 0 mm and clear sunny skies.

100 Ideal

Comfort

27°
Feels Like Warm
27°C
Temperature
23° 31°
63%
Humidity
Humid

Weather

0 mm
Rainfall
3.7 m/s
Wind
Light Breeze
2.2
UV Index
Extreme
13.1h daylight

September

September is warm with highs of 30°C and lows of 22°C. Almost no rain and clear sunny skies.

100 Ideal

Comfort

26°
Feels Like Warm
26°C
Temperature
22° 30°
62%
Humidity
Humid

Weather

1 mm
Rainfall
3.7 m/s
Wind
Light Breeze
1.7
UV Index
Very High
12.2h daylight

October

October is mild with highs of 28°C and lows of 19°C. Almost no rain and mostly sunny skies.

96 Ideal

Comfort

23°
Feels Like Mild
23°C
Temperature
19° 28°
64%
Humidity
Humid

Weather

9 mm
Rainfall
3.6 m/s
Wind
Light Breeze
1.2
UV Index
High
11.3h daylight

November

November is mild with highs of 24°C and lows of 14°C. Light rainfall.

89 Excellent

Comfort

19°
Feels Like Mild
19°C
Temperature
15° 24°
65%
Humidity
Humid

Weather

28 mm
Rainfall
2.9 m/s
Wind
Calm
0.7
UV Index
Moderate
10.4h daylight

December

December is cool with highs of 20°C and lows of 11°C. Moderate rainfall (45 mm) and partly cloudy skies.

76 Very Good

Comfort

15°
Feels Like Cool
15°C
Temperature
11° 20°
68%
Humidity
Humid

Weather

45 mm
Rainfall
3.2 m/s
Wind
Light Breeze
0.5
UV Index
Low
10.0h daylight

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