Statistics

Statistics by country and year

Yearly summaries computed from the daily readings of every station: how many station-days were spent below the low-water level (LDC) or above the high-water level (HDC) — as a count and as a share of the station-days with thresholds. Useful for agriculture (irrigation seasons with low water) and navigation (days with restricted draught).

Agriculture: station-days below LDC mark the low-water periods when irrigation intakes and water availability are under pressure.
Navigation: days below LDC mean draught restrictions on that sector; days above HDC mean suspended traffic.

CountryRiver

Daily data from 1876 to 6 November 2026

Download this tab’s data (CSV)River: Danube →

LDC: Low-water mark. The river stays above it on 94 of 100 ice-free days; below it, ships cannot sail fully loaded.
HDC: High-water mark. The river exceeds it on 1 day in 100; above it, navigation can be suspended.
Station-days: One station-day is one station measured for one day: 13 stations over 10 days make 130 station-days. It shows how widely and how long something lasted.

Chapter 1 · The Danube in 2026, by country

In 2026, Serbia has the largest share of days below LDC: 61 %

Station-days below LDC in 2026, by country.

Full table: Germany, 2021

stations · Germany →

Statistics · Germany
Year	stations with data	with LDC/HDC	station-days with data	station-days below LDC	station-days above HDC	% of station-days
2021	14	9	5,110	373	13	11 % · 0 %

Full table: Austria, 2021

stations · Austria →

Statistics · Austria
Year	stations with data	with LDC/HDC	station-days with data	station-days below LDC	station-days above HDC	% of station-days
2021	9	9	3,285	129	18	4 % · 1 %

Full table: Slovakia, 2021

stations · Slovakia →

Statistics · Slovakia
Year	stations with data	with LDC/HDC	station-days with data	station-days below LDC	station-days above HDC	% of station-days
2021	3	3	1,095	73	5	7 % · 0 %

Full table: Hungary, 2021

stations · Hungary →

Statistics · Hungary
Year	stations with data	with LDC/HDC	station-days with data	station-days below LDC	station-days above HDC	% of station-days
2021	27	20	9,853	516	2	7 % · 0 %

Full table: Croatia, 2021

stations · Croatia →

Statistics · Croatia
Year	stations with data	with LDC/HDC	station-days with data	station-days below LDC	station-days above HDC	% of station-days
2021	10	5	3,650	64	0	4 % · 0 %

Full table: Serbia, 2021

stations · Serbia →

Statistics · Serbia
Year	stations with data	with LDC/HDC	station-days with data	station-days below LDC	station-days above HDC	% of station-days
2021	13	12	4,745	378	90	9 % · 2 %

Full table: Romania, 2021

stations · Romania →

Statistics · Romania
Year	stations with data	with LDC/HDC	station-days with data	station-days below LDC	station-days above HDC	% of station-days
2021	23	13	8,394	465	0	10 % · 0 %

Full table: Bulgaria, 2021

stations · Bulgaria →

Statistics · Bulgaria
Year	stations with data	with LDC/HDC	station-days with data	station-days below LDC	station-days above HDC	% of station-days
2021	6	6	2,190	313	0	14 % · 0 %

The daily series uses the first reading of each day.