normal for the date
Baltic Sea at Althagen
The Baltic Sea at Althagen read 512 cm at .
- Newest reading
- 512 cmProvisional
- Against normal for the date
- normalwithin the normal range for the date
- Normal range for the date
- 492 cm to 534 cmMedian 509 cm
- Change
- -7 cm in a day
- -24 cm in a week
That is within the normal range for the date.
We show no forecast values for German gauges: the forecasts PEGELONLINE relays come from the Federal Institute of Hydrology (BfG), whose terms allow only private and own use. ELWIS and the BfG publish them. ELWIS BfG 6-week forecast
Long views: the past year, the past decade and the whole record
Normal range and official levels
The normal range for 5 October is 492 cm to 534 cm: the 10th to 90th percentile of the daily averages from 28 September to 12 October in 26 years between 2000 and 2025.
- Mean low water level (MNW): 458 cm, over 2010 to 2020. (Mittel der Niedrigwasserstände) The newest reading is 54 cm above it.Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
- Mean water level (MW): 509 cm, over 2010 to 2020. (Mittel der Tageswasserstände) The newest reading is 3 cm above it.Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
- Mean high water level (MHW): 569 cm, over 2010 to 2020. (Mittel der Hochwasserstände) The newest reading is 57 cm below it.Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
Records
- Highest reading in our series since 1 January 2000: 600 cm at 13:42 CEST on 21 October 2023. Provisional data.
- Lowest reading in our series since 1 January 2000: 440 cm at 08:00 CET on 30 January 2000. Provisional data.
- Highest daily average in our series since 1 January 2000: 595.3 cm on 21 October 2023. Provisional data.
- Lowest daily average in our series since 1 January 2000: 452.1 cm on 30 January 2000. Provisional data.
As the source publishes them
- Lowest daily water level in the period (NW): 452 cm, on 27 November 2011 and 1 other day, over 2010 to 2020. (Niedrigster Tageswasserstand)Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
- Highest water level in the period (HW): 588 cm, on 7 October 2016, over 2010 to 2020. (Höchster Momentanwasserstand)Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
About this gauge
Althagen is a gauge on the Baltic Sea in Germany.
It lies at 54.3718° N, 12.4190° E.
Its readings come from the Federal Waterways and Shipping Administration (WSV), through PEGELONLINE.
The gauge reads the height of the water above a fixed zero, not the depth of the river. Its zero lies at -4.979 m above NHN (the German sea-level datum), valid from 1 November 2019.
PEGELONLINE publishes its readings as unchecked raw data.
The newest reading is provisional: the source may still correct it.