What You Can See

Live panoramic view of Castro Marim, Algarve — a border town dominated by its medieval castle, beside the Guadiana River mouth and the Sapal de Castro Marim and Vila Real de Santo António Nature Reserve.

Weather in Castro Marim

16°C

Mainly clear

Feels like 14°C

Humidity 73%

Wind 13 km/h

5-Day Forecast

Thu

25° 16°

Fri

25° 15°

Sat

23° 13°

Sun

22° 13°

Mon

22° 13°

Updated at 07:04 · Weather: Open-Meteo

About Castro Marim

Castro Marim is a historic border town at the eastern tip of the Algarve, next to the mouth of the Guadiana River and directly opposite Ayamonte in Spain. Its imposing medieval castle and the São Sebastião Fort bear witness to the town's strategic role in defending the kingdom and its link to the Order of Christ, founded here in 1319. The Castro Marim Salt Marsh Nature Reserve protects one of Portugal's most important salt-marsh ecosystems, home to flamingos, storks and wading birds, and produces the PDO Flor de Sal of Castro Marim.