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Kolsi, ala water level

River gauge, Kokemäenjoki, Satakunta, Finland

Directions

Right now

Normal for mid-October

Surface elevation

30.34m Up 0.54 m over the last 7 days

29.5 30.0 30.5 31.0
Surface elevation: 30.34 m. Normal for mid-October.

History

History
293031mOct 10Oct 11Oct 12Oct 13Oct 14293031mOct 10Oct 12Oct 14
293031mSep 17Sep 23Sep 30Oct 7Oct 14293031mSep 17Sep 30Oct 14
-0102030mOct 2025Jan 2026Apr 2026Jul 2026Oct 2026-0102030mOct 2025Apr 2026Oct 2026
-0102030mJanMarMayJulSepNov2026-0102030mJanAprJulOct2026

20252026

Surface elevation Normal range (10–90 %)

What this means

Water levels are unremarkable at Kolsi, ala, where the gauge shows 30.34 m.

That puts it 0.48 m above the median of 29.86 m for mid-October, based on 21 years of readings. A year ago it stood at 29.73 m (+0.61 m).

It is on the way up, by 0.54 m over the past week. The 30-day range is 29.47 m – 30.91 m.

Early autumn is often low-water season on rivers, until steadier rain returns.

Compared with 21 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
29.86 m0.48 m above the median for this date
Normal for this date
29.48 m – 31.09 m8 years in 10 fall in this range (21 years of records)
Same day last year
29.73 m+0.61 m
Lowest and highest in 30 days
29.47 m – 30.91 m
Lowest and highest in 12 months
0.59 m – 31.22 m

On and along the river

Nothing about this level suggests unusual conditions on the water.

Weather at the gauge

The forecast is not available right now.

Sunrise 08:15 AM Sunset 06:18 PM Daylight 10h 3m First quarter 35 %

Map

Other gauges on the Kokemäenjoki

Gauge Level Compared with normal 24 hours Distance
Kolsi, yläRiver gauge, Kokemäenjoki 42.33 m Normal 0.1 km
KolsiRiver gauge, Kokemäenjoki 301 m³/s High 0.5 km
Upas, 730River gauge, Kokemäenjoki 42.63 m Normal 4.1 km
SyyränsuuRiver gauge, Kokemäenjoki 43.14 m High 13 km
Harjavalta, yläRiver gauge, Kokemäenjoki 29.48 m Normal 15 km
HarjavaltaRiver gauge, Kokemäenjoki 289 m³/s High 15 km
Äetsä, alaRiver gauge, Kokemäenjoki 43.31 m Normal 18 km
ÄetsäRiver gauge, Kokemäenjoki 209 m³/s High 18 km
Äetsä, yläRiver gauge, Kokemäenjoki 49.17 m Very low 18 km
Kokemäenjoki, HuittinenRiver gauge, Kokemäenjoki 42.88 m Normal 19 km
Leineperin patosiltaRiver gauge, Kokemäenjoki 1.17 m Normal 23 km
KiikkaRiver gauge, Kokemäenjoki 50.19 m Normal 24 km

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Pahakoski, 780River gauge, Pahakoski 42.70 m High 4.2 km
SääksjärviLake 49.66 m Normal 14 km

Questions and answers

How does the Kokemäenjoki at Kolsi, ala compare with last year?

It is 0.61 m higher than on the same day last year, when the reading was 29.73 m.

How often is Kolsi, ala updated?

Once a day. The source, Suomen ympäristökeskus (Syke), publishes a single daily value; the latest is from Oct 14, 2026.

What is the water level of Kolsi, ala today?

On Oct 14, 2026, the surface elevation was 30.34 m. Up 0.54 m over the last 7 days.

Is Kolsi, ala rising or falling?

Up 0.54 m over the last 7 days.

Is the level of Kolsi, ala normal?

Normal for mid-October. Compared with 21 years of daily readings for this time of year.

How often is this data updated?

Suomen ympäristökeskus (Syke) publishes a new reading once a day. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from Suomen ympäristökeskus (Syke), the official operator of this gauge, and are published under the CC BY 4.0. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
Suomen ympäristökeskus (Syke)
Station code
syke:3510340
Coordinates
61.27333, 22.35722 (WGS84)
Vertical datum
N2000
Update interval
once a day
Licence
CC BY 4.0. Data from the Finnish Environment Institute (Syke), CC BY 4.0; regions from Statistics Finland, CC BY 4.0

Published series

ParameterLast valueTime (UTC)Quality
Surface elevation elevation 30.34 m 2026-10-14 00:00 Provisional

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How to cite

Suomen ympäristökeskus (Syke): Kolsi, ala (syke:3510340). Accessed October 16, 2026 via Nivelmap, https://nivelmap.com/en/finland/satakunta/kolsi-ala

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.