Freestone · Mixed · South Bohemia

Blanice

Blanice — Blanice River in nature reserve Na soutoku in summer 2019 (12)

Natural small river with a rich abundance of smaller trout and grayling.

Marginal · Brown Trout
Czech Nymph · 10-14
Marginallive now
Slow going — pick your moments
River temperature is the limiting factor today, not the flow. Fish dawn or dusk if you go at all, and handle everything with extra care.
80% confidence
What moved it
  • Level0.07 m
  • Water temp18.0°C
  • ClarityClear
Today's fly
Czech Nymph
Czech Nymph10-14
Euro-nymph
Conditions on the water
Live gauge
Level
Steady
0.07 m
lowspate
Water temp18.0°C
ClarityClear
Weather18°C
WindSE 8 km/h
Pressure1017 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Warm — slow
18°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Water at 18°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 2 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey

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Evidence
Survey-backed · regionalModerate confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
1
Grayling seasonSeason
1
2
2
2
2
1
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
1

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Brown Trout fly box

The most distinct national style here: Czech nymphing first, with short-line teams of 2 or 3 weighted nymphs central to trout and grayling fishing in fast rivers.

Permits & access
Permit required — see local rules.
  • State licence + local permit
  • Brown trout protected Sep 1–Apr 15
  • Grayling protected Dec 1–Jun 15.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 1
Water here around 18°C — probably warm enough to stress Brown Trout . These are likely cooler.
Teplá Vltava (Upper Vltava / Warm Vltava)
57 km
~16°C
Brown trout · Grayling
Gallery · 2
  1. Blanice — Blanice River in nature reserve Na soutoku in summer 2019 (12)
    Blanice River in nature reserve Na soutoku in summer 2019 (12)
  2. Terrain map of the venue
    Terrain map
About this water

Natural small river with a rich abundance of smaller trout and grayling. Particularly enjoyable for fine dry-fly fishing and nymphing. Less famous than the Otava or Vltava but a genuinely rewarding fishery for anglers who appreciate intimate water, clear runs, and wild fish that reward light tackle and careful approach.

  • Mixed
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Failing to achieve good

WFD classification · CZHVL_1400

The full read · show the working · for Brown Trout · confidence 80%
How the 30 is built — score × weight = contribution
Temperature56 × 28%15.7
Flow15 × 22%3.3
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity14 × 12%1.7
Limiting factor: River is stable — Brown Trout prefers medium flow= 49
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
A drop and clear would lift the flow and clarity scores.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 16 April → 31 August
  • Grayling 16 June → 30 November

    Czech national rule: grayling (lipan podhorní) protected 1 December – 15 June. Open window is 16 June – 30 November. Czech Anglers Union (ČRS) salmonid fisheries also have method and access rules — check the local ČRS district permit for specific conditions.

    Closed in spring for spawning.

    Prime sport 1 September → 30 November

Related guides
Grayling Playbookgrayling tacticsEuro Nymphingsubsurface methods
Booking & contacts