Please note: In many cases, the station position in our database is accurate
to only one minute. Thus, the tide gauge may not appear to be on the coast.
Data prior to 1965 look suspect compared to the trend of later data.
Documentation added 1998-11-04
data for 1985 replaced with revised values received from authority the Portuguese Hydrographic Institute.
Documentation added 2019-08-01
The Hydrographic Institute has supplied the complete dataset. This has been loaded onto the database. Data up to February 1963 has been flagged due to a datum change. The station flag has been removed and the station reinstated.
Data Authority
Hydrographic Institute Rua das Trinas 49 1249-093 Lisboa