The monitoring network within this area

Hydrionis holds 100,431 values from 5 gauges within it. Discharge is a property of a gauge and its reach, not of this drainage area, so this page reports the network and its records rather than a single figure.

5
Gauges
100,431
Values held
1911–2026
Record spans
Gauges within the Kiiminginjoki drainage basin
5 monitoring points, positioned as the publisher records them.
Gauges within the Kiiminginjoki drainage basinPorkkalan silta, Iso Puutiojärvi - luusua, Nuorittajoki, Haukipudas, HaukipudasPorkkalan siltaIso Puutiojärvi - luusuaNuorittajokiHaukipudasHaukipudas

The longest record here

Mean river flow at Porkkalan silta
Annual means of the daily record, 1962–2025. One gauge, not this drainage area.
Mean river flow at Porkkalan siltaMean river flow at Porkkalan silta: Porkkalan silta in m³/s, from 1962 to 2025.10203040m³/s19621970197819861994200220102018Porkkalan silta 1962: 31.5 m³/sPorkkalan silta 1963: 21.6 m³/sPorkkalan silta 1964: 24.4 m³/sPorkkalan silta 1965: 24.7 m³/sPorkkalan silta 1966: 23.1 m³/sPorkkalan silta 1967: 28.0 m³/sPorkkalan silta 1968: 19.2 m³/sPorkkalan silta 1969: 18.2 m³/sPorkkalan silta 1970: 19.6 m³/sPorkkalan silta 1971: 22.8 m³/sPorkkalan silta 1972: 19.7 m³/sPorkkalan silta 1973: 21.9 m³/sPorkkalan silta 1974: 29.2 m³/sPorkkalan silta 1975: 24.5 m³/sPorkkalan silta 1976: 16.9 m³/sPorkkalan silta 1977: 28.7 m³/sPorkkalan silta 1978: 11.5 m³/sPorkkalan silta 1979: 22.5 m³/sPorkkalan silta 1980: 13.1 m³/sPorkkalan silta 1981: 28.2 m³/sPorkkalan silta 1982: 24.3 m³/sPorkkalan silta 1983: 25.3 m³/sPorkkalan silta 1984: 23.3 m³/sPorkkalan silta 1985: 20.1 m³/sPorkkalan silta 1986: 22.0 m³/sPorkkalan silta 1987: 23.7 m³/sPorkkalan silta 1988: 17.6 m³/sPorkkalan silta 1989: 28.3 m³/sPorkkalan silta 1990: 14.2 m³/sPorkkalan silta 1991: 24.7 m³/sPorkkalan silta 1992: 24.5 m³/sPorkkalan silta 1993: 22.0 m³/sPorkkalan silta 1994: 16.0 m³/sPorkkalan silta 1995: 21.2 m³/sPorkkalan silta 1996: 16.7 m³/sPorkkalan silta 1997: 17.5 m³/sPorkkalan silta 1998: 26.4 m³/sPorkkalan silta 1999: 19.0 m³/sPorkkalan silta 2000: 26.9 m³/sPorkkalan silta 2001: 16.1 m³/sPorkkalan silta 2002: 13.5 m³/sPorkkalan silta 2003: 14.9 m³/sPorkkalan silta 2004: 19.3 m³/sPorkkalan silta 2005: 22.6 m³/sPorkkalan silta 2006: 17.7 m³/sPorkkalan silta 2007: 22.5 m³/sPorkkalan silta 2008: 26.4 m³/sPorkkalan silta 2009: 17.8 m³/sPorkkalan silta 2010: 21.6 m³/sPorkkalan silta 2011: 21.2 m³/sPorkkalan silta 2012: 31.3 m³/sPorkkalan silta 2013: 22.4 m³/sPorkkalan silta 2014: 25.2 m³/sPorkkalan silta 2015: 37.9 m³/sPorkkalan silta 2016: 27.1 m³/sPorkkalan silta 2017: 24.5 m³/sPorkkalan silta 2018: 17.3 m³/sPorkkalan silta 2019: 19.5 m³/sPorkkalan silta 2020: 37.2 m³/sPorkkalan silta 2021: 26.1 m³/sPorkkalan silta 2022: 22.1 m³/sPorkkalan silta 2023: 26.5 m³/sPorkkalan silta 2024: 29.7 m³/sPorkkalan silta 2025: 25.5 m³/s

Annual means computed by Hydrionis from the published daily record, drawn only for years with at least 300 days held. They summarise this gauge's own record and say nothing about any other watercourse in this area.

View the data behind this chart
Underlying data
PeriodPorkkalan silta (m³/s)
196231.5
196321.6
196424.4
196524.7
196623.1
196728.0
196819.2
196918.2
197019.6
197122.8
197219.7
197321.9
197429.2
197524.5
197616.9
197728.7
197811.5
197922.5
198013.1
198128.2
198224.3
198325.3
198423.3
198520.1
198622.0
198723.7
198817.6
198928.3
199014.2
199124.7
199224.5
199322.0
199416.0
199521.2
199616.7
199717.5
199826.4
199919.0
200026.9
200116.1
200213.5
200314.9
200419.3
200522.6
200617.7
200722.5
200826.4
200917.8
201021.6
201121.2
201231.3
201322.4
201425.2
201537.9
201627.1
201724.5
201817.3
201919.5
202037.2
202126.1
202222.1
202326.5
202429.7
202525.5

Every gauge Hydrionis holds within this area

Gauges within the Kiiminginjoki and what each holds
GaugeMeasuresValuesRecord
Porkkalan siltamean river flow23,5881962–2026
Nuorittajokimean river flow21,7871967–2026
Iso Puutiojärvi - luusuamean river flow18,8461975–2026
Haukipudasmean river flow18,1341977–2026
Haukipudasmean river flow18,0761911–1976

How these gauges were attached to this water

Assigned by the publisher to a numbered basin Every gauge here is assigned to this drainage area by its own publisher, which issues the area an official code — 60. A drainage area is not a river: it contains the tributaries as well as the main channel, and a gauge in it may be on any of them.

What each gauge’s link to this water rests on
GaugeEvidenceEstablished
Porkkalan siltaStated by the publisher on the record this gauge’s observations came from.With the observations
NuorittajokiStated by the publisher on the record this gauge’s observations came from.With the observations
Iso Puutiojärvi - luusuaStated by the publisher on the record this gauge’s observations came from.With the observations
HaukipudasStated by the publisher on the record this gauge’s observations came from.With the observations
HaukipudasStated by the publisher on the record this gauge’s observations came from.With the observations

What this record holds

Hydrionis decides which waters get a page, and which of those are offered to search, from what is actually held rather than from how the page reads. Five signals are counted; this record has 3 of them, which makes it a full profile.

Information-gain signals held for this water body
SignalHeldCounts
Gauges holding a real record5yes, 3 or more
Years spanned116yes, 20 or more
Values held100,431yes, 1000 or more
Distinct measurements1no
Publishers measuring it1no
Official identifiers1recorded, not counted

Where these figures come from

MeasuredHigh confidence2026-08-25

Source: SykeHydrologiarajapinta — Finnish national hydrological archive, 6000100. Licence: Open — attribution required (attribution required).

Method: Daily discharge exactly as the Finnish Environment Institute publishes it. Syke computes the daily value from its own measurement and rating curves; Hydrionis does not recompute it, because a mean derived from whatever sub-daily data happens to be exposed would be a different statistic under the same name. Values Syke flags as possibly erroneous are not stored.

131 of these values (1%) are interpolated by Syke rather than measured, and are marked as such in its own archive. Station in the Kiiminginjoki main drainage basin, Rekikylän - Kirkkosaaren a sub-basin. Discharge is a property of this gauge and this reach, not of the river as a whole.

Retrieved 26 August 2026.