Porto Mannu
cove · Asinara · Sardinia
Porto Mannu is a cove on the island of Asinara, in the Sardinia cruising area.
The bay opens towards the north-west (310°).
Shelter by wind direction
Good shelter in east, south-east (sirocco) and south wind.
Partial shelter in north-east and south-west wind.
No shelter in north (tramontana), west and north-west wind.
In the most open sector, up to 30 NM of open water towards the west.
Swell can come in from west to north (264°–360°).
- sheltered
- partly
- exposed
Shelter is estimated from open water and swell, not from wind strength: a strong wind can still gust over the land.
Here, shelter depends on tonight's wind. Seadromy reads the forecast and tells you before you leave.
Seabed, depth and room
Depth near the anchoring spot: about 8.5 m (EMODnet bathymetry, indicative).
Room to anchor: medium (about 2.6 ha).
Approach
Direct approach from open water; the routing point lies 0.2 NM from the anchoring spot.
Protected area and seagrass
Porto Mannu lies in the protected area Area marina protetta Isola dell'Asinara: check its rules (anchoring, speed, buoys) before you arrive.
Uncertain anchoring: mostly posidonia seabed, no sand patch found.
Ashore and services
Road within 400 m: busy in the afternoon.
Almost no buildings ashore (0 within 600 m).
Nothing ashore: a wild anchorage.
Where to go when the wind turns
When the wind makes this place exposed, the nearest places rated as well sheltered are:
- In north wind: Cala d'Arena, 2.6 NM by sea.
- In north-east wind: Porto Mannu della Reale, 3.5 NM by sea.
- In south-west wind: Cala d'Arena, 2.6 NM by sea.
- In west wind: Cala d'Arena, 2.6 NM by sea.
- In north-west wind: Cala d'Arena, 2.6 NM by sea.
Nearby anchorages and ports
- Cala d'Arena cove · 2.6 NM by sea
- Porto Mannu della Reale cove · 3.5 NM by sea
- Cala d'Oliva mooring field · 4.8 NM by sea
- Porto del Bianco cove · 4.9 NM by sea
- Cala Tumbarineddu cove · 5.7 NM by sea
- Cala Barche Napoletane cove · 6.1 NM by sea
Sheltered anchorages of Sardinia by wind
More places – Asinara
- Cala d'Orata cove
- Campo Perdu cove
- Porto Mannu della Reale cove
- Porto Vecchio dei Fornelli cove
Questions
Is Porto Mannu sheltered from the tramontana?
No. It is exposed in north wind. The nearest well-sheltered place is Cala d'Arena, 2.6 NM by sea.
Is Porto Mannu sheltered from the sirocco?
Yes. Shelter is rated good in south-east wind.
How deep is the water at Porto Mannu?
Depth near the anchoring spot: about 8.5 m (EMODnet bathymetry, indicative).
What is the seabed at Porto Mannu?
Room to anchor: medium (about 2.6 ha).
Can you spend the night at Porto Mannu?
It depends on the wind of the night: Seadromy picks the evening anchorage with the forecast of the day.