Watercourse

Udava

Bodrog and Hornád basinSalmon – troutSalmon – grayling
fishing districts
2
fishing district length
37,3km
region
Prešov Region
  • Salmon – trout26,1 km1 fishing district
  • Salmon – grayling11,2 km1 fishing district
Aerial image of watercourse Udava with the line highlighted
Blue line: course of the watercourse (approximate). Orthophoto mosaic of Slovakia © GKÚ Bratislava, CC BY 4.0Mapy Google

By the water now

Today on the Udava watercourse

Fishing conditions score, the best window of the day and fishing districts from the best conditions

Average of the watercourse's fishing districts

Average activity · average of 2 fishing districts

The number in the header is an estimate for the middle of the watercourse based on weather and measurements. The average of the fishing districts also counts satellite data, shading and geology of each district.
  • Very high0
  • High0
  • Average2
  • Low0

Best window today

15:00–17:00

Udava č. 1, window score 39.

The score is an estimate of conditions based on weather, water and surroundings, not a bite forecast. Recalculated at 06:04.

Map and fishing districts of the watercourse

The course of the watercourse and its fishing districts. You can switch the line color to today's conditions, quality or any other parameter.

Detailed filtersregion, district, riverbed, depth, shading, satellites, water chemistry and pollution, fish, geology

1445fishing districts
Pick a category to narrow the selection. Next to each option you can see how many fishing districts remain.
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    Water state on the watercourse

    Measurement of water level, temperature and flow, weather by the watercourse and status from satellites

    Water levels on the watercourse

    StanicaStavZmenaTeplota
    Papín71 cm–
    Udavské73 cm–
    Source: SHMÚUpdated 7 Nov 2026 06:58

    Elevation profile of the watercourse

    How the watercourse falls downstream: fall, gradient and water speed.

    Gentle gradient The current is noticeable, with shallows and slacks alternating. A transition between a lowland and a foothill watercourse.

    1001502002503003500 km10 km20 km30 kmNo. 2No. 1
    Elevation profile of the watercourse: from 326 to 160 m a.s.l. over 37.2 km.
    Fishing districts in order from the highest (left) to the lowest. There may be a section without a fishing district between districts; it is not displayed.
    Highest point
    326 m a.s.l.
    Lowest point
    159 m a.s.l.
    Fall of the fishing districtsFallThe difference in altitude between the upper and lower end of the fishing district in metres. The greater the fall over a shorter length, the faster the water.
    168 m
    Average gradientWatercourse gradientFall per kilometre in per mille (‰, metres per kilometre). Up to 2 ‰ is a slow lowland river, 5 to 10 ‰ a foothill river (grayling, trout), above 10 ‰ a fast stream.
    4,5 ‰
    SinuositySinuosityThe length of the watercourse divided by the straight-line distance between its ends. 1.0 is a straight watercourse; above 1.3 it meanders strongly. Meanders create pools under the banks and shallows in the reaches between.
    1,62

    Source: Open Topo Data (eudem25m), 4 Nov 2026. Gradient and fall are approximate and include only the sections of fishing districts.

    Terén v 3D

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    Historical images

    Changes in the surroundings and nature from 2019 to 2025: how the banks, vegetation and landscape around the water change. The images switch automatically; you can also browse them by hand.

    Aerial image of watercourse Udava from 2019
    2019imaged 19 Aug 2019
    Aerial image of watercourse Udava from 2022
    2022imaged 27 Aug 2022
    Aerial image of watercourse Udava from 2025
    2025imaged 24 Jul 2025

    Orthophoto mosaic of Slovakia © GKÚ Bratislava, NLC Zvolen. The year and day of imaging depend on the location, so individual years may differ in season and weather.

    Water pollution on the Udava watercourse

    Water quality according to SHMÚ, wastewater treatment plants near the fishing districts and groundwater nearby

    Surface water near the fishing districtsnearest SHMÚ monitoring site, 2025

    2 of 2 of the watercourse's fishing districts with SHMÚ data have an unmet standard at the nearest site in at least one indicator.

    • 1 to 2 indicators2

    Most polluted fishing districtsall with an unmet standard

    • Udava č. 1Udava · standard not met in 1 of 4 years1 indicator
    • Udava č. 2Udava · standard not met in 1 of 4 years1 indicator

    Groundwater: measured valuestypical value from stations within 10 km, 2025

    2 of 2 fishing districts with measurements have groundwater nearby with a value above the limit for at least one indicator.

    • harmful substances above the standard at at least one station (metals, pesticides, PFAS, solvents)2

    Watercourse profile from source to mouthnumber of unmet indicators in 2025 at SHMÚ sites

    01234nad sútokom s Černinským potokom, rkm 34.9: no failed standard (2025)Zubné, rkm 15.1: 1 indicator (2025)rkm 35 (upper course)rkm 15 (towards the mouth)
    Show sites in the table (2)
    • nad sútokom s Černinským potokomriver km 34.9no unmet standard
    • Zubnériver km 15.11 indicator
    • standard not met
    • no unmet standard
    • site not in the yearbook

    Source: SHMÚ (yearbooks on surface and groundwater quality), the register of wastewater treatment plants from VÚVH and the EEA. A SHMÚ site is assigned to a fishing district by the same watercourse name and by distance; the yearbook lists the sites that failed the standard, so a missing site is not proof of clean water.

    Organizations and location

    Who manages the fishing districts and where they are

    Organizations on the watercoursewho manages the fishing districts and what the conditions are there today

    1. Humenné2 fishing districts · 37 km36Udava č. 137

    More watercourses nearby

    Bodrog and Hornád basin