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River basins

River basins of Slovakia

river basins
4
watercourses and water bodies
1,101
fishing districts
1,445
fishing district length
11,391km

River basins of Slovakia

Choose a river basin and go to its watercourses and fishing districts.

Today in Slovakia

Average fishing conditions score, the best window of the day and the best fishing districts

Priemer Slovakia

Low activity · average of 1,400 fishing districts

1,400 of 1,445 fishing districts have a score; the others have no map position or fresh calculation.
  • Very high0
  • High0
  • Average62
  • Low1,338

When the best window ishow many fishing districts have their best two-hour window in a given hour

  1. 00
  7. 06
  13. 12
  19. 18

Most fishing districts have their best window around 06:00.

Best conditions todayfirst 6 of 1,400 fishing districts

  1. Orava č. 3Salmonid (grayling) · 13 km · Orava56
  2. Bystrica č. 1aSalmonid (grayling) · 2.7 km · Bystrica55
  3. Bystrica č. 1bSalmonid (grayling) · 4.9 km · Bystrica55
  4. Nitrica č. 3Salmonid (trout) · 18 km · Nitrica55
  5. Bystrica č. 2Salmonid (trout) · 13 km · Bystrica54
  6. Nitrica č. 2Salmonid (trout) · 3.8 km · Nitrica54

The score is an estimate of conditions based on weather, water and surroundings, not a bite forecast. Recalculated at 02:04.

Map of all fishing districts

Every fishing district by water type. You can switch the line colour to today's conditions, water quality or any other parameter; choose a river basin in the list of basins above.

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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Move the map with two fingers. In full-screen mode one finger is enough.

    Water pollution on Slovakia

    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

    436 of 523 fishing districts with SHMÚ data in Slovakia fail the standard in at least one indicator at the nearest site.

    • No unmet standard87
    • 1 to 2 indicators296
    • 3 or more indicators140
    • No SHMÚ data922
    SHMÚ has no data for 922 fishing districts: there is no monitoring site with the same name near their watercourse.

    Most polluted fishing districtsfirst 8 of 377

    • ZolnáZolná · standard not met in 4 of 4 years12 indicators
    • VN Kalná n. HronomVN Kalná n. Hronom · standard not met in 1 of 4 years11 indicators
    • Morava č. 3Morava · standard not met in 4 of 4 years10 indicators
    • Morava č. 4Morava · standard not met in 4 of 4 years10 indicators
    • Morava č. 5Morava · standard not met in 4 of 4 years10 indicators
    • Morava č. 1Morava · standard not met in 4 of 4 years9 indicators
    • Morava č. 2Morava · standard not met in 4 of 4 years9 indicators
    • Morava č. 6Morava · standard not met in 4 of 4 years9 indicators

    Problem treatment plants near the fishing districts35 treatment plants within 2 km of the fishing district

    • COV Canadoes not meet the requirements (phosphorus)0.4 km
    • COV Chynoranyfails requirements (COD)0.7 km
    • COV Dolny Stalload 114%1.4 km
    • COV Elektrosvit Vrakundoes not meet the requirements (BOD₅, COD)0.6 km

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

    963 of 1,372 fishing districts with measurements have groundwater nearby with a value above the limit for at least one indicator.

    • nitrates above the standard (from 50 mg/l)44
    • nitrates 25 to 50 mg/l144
    • harmful substances above the standard at at least one station (metals, pesticides, PFAS, solvents)678
    • ammonium or nitrites above the standard at at least one station524
    • iron from 1 mg/l188
    • chlorides from 230 mg/l3

    Highest nitrates

    Water pollution in the Váh basinPolluted water in Slovakia

    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.