Data and Station Information for HELSINKI

Station Information

Station ID:	14
Latitude:	60.153633
Longitude:	24.956217
Coastline code:	60
Station code:	351
Country:	FINLAND
Time span of RLR data:	1879 – 2024
RLR completeness (%):	100
Time span of metric data:	1857 – 2024
Metric completeness (%):	90
Date of last update:	17 Feb 2025

Green Arrow:	Current Station
Yellow Marker:	Neighbouring RLR Station
Red Marker:	Neighbouring Metric Station

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.

Tide Gauge Data

Plot of monthly mean sea level data at HELSINKI.

Link to larger image of monthly data plot.
Download monthly mean sea level data.

Plot of annual mean sea level data at HELSINKI.

Link to larger image of annual data plot.
Download annual mean sea level data.

Download metric sea level data. Use only with extreme caution. NOTE: If some of the data are red in the plots above, the 'flag for attention' is set. Please see the documentation below.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: SG02, SG40, METS

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Helsinki 060/351 RLR(1964) is 9.6m below BM7HB

Documentation added 1993-07-12

Helsinki 060/351 RLR(1964) is 9.6m below BM7HB

Documentation added 2002-09-24

A description of the sea level network in Finland can be found
in 'Operational Oceanography: Implementation at the European
and Regional scales. 2002 (pp.129-137)'.
1879-1903 VALUES BASED ON 1 READING PER DAY
1904-1970 VALUES BASED ON 6 READINGS PER DAY

Documentation added 2012-01-03

Levelling information recently supplied by the Finnish Meteorological Institute
confirms Primary benchmark remains 7HB 4.48m above gauge datum of 1904 onwards.
Previous datum for 1879-1903 was 1.967m above the present datum.

Documentation added 2017-01-31

Following the 2016 levelling exercise some adjustments have been made to the benchmark reference heights - at Helsinki this was +1mm for BM 7HB. The adjustments are a result of more accurate measuring and calculations using the N2000 height system. The RLR diagram has been re-drawn because of this.

Documentation added 2019-11-27

From 2018 onwards the averages of the Finnish sea level data will be based on 1 min observations. Values are calculated in Finnish normal time (EET).
The data are relative to the reference surface of the Finnish sea level observations and thus the datum is the tide gauge zero.

Data Authority

Finnish Meteorological Institute
Marine Research, Waves and Sea Level
Erik Palenin aukio 1
P.O. Box 503
FI - 00101 Helsinki

Data

Data Notes

Extracted from Database

HELSINKI