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Una · km 42.1 · CROATIA

Kostajnica

Water level history at Kostajnica (Una), Croatia

NormalFalling · −9 cm today

92cmlevel of the day, 6 November 2026▲ +60 cm in 7 days
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Compared with normal
13 of 29
years had more water on 6 November

Water level (cm)

06/11/2026 00:00 CET

22/10/2026Date06/11/2026
  • Water level (cm)
  • normal for the date (previous years)
22/10/2026 – 06/11/2026 · 16 days · Source: national hydrological institutes

Full series: download CSV

On 6 November, the water at Kostajnica is at 92 cm, 9 cm lower than yesterday.

The station usually reports every few hours; the latest reading came 2 hours ago.

On the Una, upstream and downstream

At a glance

On the river Una, at river km 42.1, the Kostajnica gauge records the level (Croatia). The level of the river Una on 6 November 2026 is 92 cm. In a week the level has risen by 60 cm. Compared with the same day over the past 30 years, the level on 6 November 2026 is within the usual range (percentile 55). The station’s record starts in 1900: since then the highest level was 537 cm (10 October 1955) and the lowest −15 cm (3 July 1907). On the river Una, the nearest gauge upstream is Struga Banska and downstream Hrvatska Dubica. Readings arrive every few hours; the latest came 2 hours ago.

Frequently searched

What does today's water level mean?
The level of the river Una on 6 November 2026 is 92 cm. In a week the level has risen by 60 cm. Readings arrive every few hours; the latest came 2 hours ago.

Conditions

Air
5–11 °C
Wind
2.3 m/s

Nearby gauges

Upstream on the Una: Struga Banska (19.2 km) and Dobretin (36.4 km). Downstream on the Una: Hrvatska Dubica (22 km).

Station map

Kostajnica — 92 cmStruga Banska — 93 cmHrvatska Dubica — −75 cmSunja — 117 cmGušće — 53 cmUstava Trebež — −151 cmUstava Trebež — −11 cmCrnac — −43 cmCS Šašna Greda — 36 cmJasenovac — 73 cmPrijedor — 59 cm
Stations on the map: 11

Statistics

Minimum, mean and maximum of the daily levels, with the days spent below LDC or above HDC — useful for navigation, agriculture and flood history.

Download the series (CSV)

Last 30 days

16 station-days with data

Minimum
18cm22/10/2026
Mean
45cm
Maximum
101cm05/11/2026

Last 12 months

71 station-days with data

Minimum
18cm22/10/2026
Mean
82cm
Maximum
329cm27/11/2025

Whole history (1900–2026)

40,088 station-days with data

Minimum
−15cm03/07/1907
Mean
133cm
Maximum
537cm10/10/1955
Record high
537 cm10/10/1955
Record low
−15 cm03/07/1907

By year

By year
YearMinimumMeanMaximumstation-days with data
2026184510116
20252297474365
20242894370366
202332128490365
20222392461365
202122102324365
20202887363366
201927102458365
201822106453365
201723102389365
201644113407366
201527108388365
201466161501365
201329120364365
20121886313366
20111962182365
201034144426365
20091599352365
200821102415366
20071890282365
200631111404365
200544123421365
200426122442366
20031780275365
200238121395365
200152132406365
200045103334366
199937140409365
199876137274109
199755126326365
1991108178401151
199055112340365
198974139364365
198868133392366
198771144443365
198673146295365
198567132348365
198483158390366
198372129322365
198274141482365
198181158429365
198075168370366
197974154407365
197879157341365
197779151337365
197695169410366
197585147375365
197479168461365
197377139453365
197295162465366
197171133382365
197083168491365
196987171437365
196890149393366
196769152397365
196680166444365
196583168372365
196480164425366
196381147366365
196272156425365
196167136340365
196081165359366
195976155502365
195870142386365
195776150411365
195677154447366
1955115190537365
195473146438365
195369140429365
195269143431366
195174163427365
195065140367365
194965124357365
194871139367366
194761123377365
194662121427365
194559122267365
194461166387366
194359133445365
194257154407365
194173161387365
194095181437366
193965148407365
193875129265365
193785185429365
193663149403366
193560122343365
193477153483365
193368140478365
193258140448366
193173146393365
193063132353365
192969143441365
192853134343366
192757133341365
192675146423365
192561149523365
192463140393366
192330118396365
19129106441366
1911666500365
191010133340365
190910105430365
1908970400366
1907−1585400365
190611106390365
19059109400365
190433134400366
190320114399365
190247133331365
190111108370365
190046142370365

Monthly mean

2025-03: Mean 197 cm (111–474)19725/032025-04: Mean 162 cm (99–342)16225/042025-05: Mean 129 cm (90–280)12925/052025-06: Mean 57 cm (42–86)5725/062025-07: Mean 40 cm (32–82)4025/072025-08: Mean 39 cm (29–68)3925/082025-09: Mean 30 cm (24–37)3025/092025-10: Mean 35 cm (22–72)3525/102025-11: Mean 81 cm (29–329)8125/112025-12: Mean 95 cm (67–152)9525/122026-10: Mean 32 cm (18–42)3226/102026-11: Mean 68 cm (31–101)6826/11

This year against the historical range

IIIIIIIVVVIVIIVIIIIXXXIXII
Minimum–MaximumMean2026The band is the minimum–maximum of previous years for each calendar day; the line is the current year.

The daily series uses the first reading of each day.

Water level history at Kostajnica (Una)

Water level history at Kostajnica (Una)
DateWater level (cm)
92
101
92
53
36
31
30

Weather

The minimum temperature was 5°C, while the maximum temperature was 11°C. The feels-like temperature was 5°C, the wind speed was 2.3 m/s, the humidity was 84%, and the atmospheric pressure was 1,015 hPa.

min
5°C
max
11°C
feels like
5°C
wind
2.3 m/s
humidity
84%
pressure
1,015 hPa