Freestone · Mixed · South Bohemia, CZ

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.

Tomorrow · Not the day for it
Czech Nymph
Forecast · Tomorrow
Not the day for it
Not much stacked in your favour today. Worth an hour if you are nearby, not worth the special trip.
45% projected
Today's fly
Czech Nymph
Czech Nymph
Conditions on the water · Tomorrow
Live gauge
Level
Rising
0.23 m
lowspate
Water temp6.6°C
ClarityUnfishable
Weather1°C
WindN 7 km/h
Pressure1023 hPa
Rain · recent4.5 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 Grayling
Ideal
7°C est.ideal 4–14°C
0°14°28°
How to fish it · for Grayling
When
Midday window — grayling feed best from late morning into early afternoon.
Where
Work runs and glides — grayling shoal in the bottom third of the water column.
Method
Tight-line nymph the bottom third with weighted patterns.
Kit
10 ft #3 rod, floating line, long leader to 4 lb fluoro for nymphs.
Why this works
Good — water temperature is working for you, but insect activity is the limiting factor today. Grayling feeds actively in cold water — peak winter sport.
Likely species
Stoneflies
Gammarids
Hatch timeline · tomorrowQuiet day

12pm(now) — Autumn Needle Fly

Stage: Creeping nymphsApproach: Heavy nymphActivity: 18%

Low insect activity predicted today

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds as a supporter.

Start free trial

14-day free trial. Cancel anytime.

Evidence
Survey-backed · regionalModerate confidence

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

Through the year
0–3 scale · November 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
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
2
2
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1

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

Ranked for today
Grayling 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.

Small Perdigón
Small Perdigón
Hook 14–18 · Fly
in season
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
Other water nearby · 5
Otava
17 km
Brown trout · Grayling
Otava 6 (Private Trophy Section)
17 km
Brown trout
Orlík Reservoir
32 km
Rainbow trout · Carp · Pike
Teplá Vltava (Upper Vltava / Warm Vltava)
45 km
74
Brown trout · Grayling
Teplá Vltava (Upper Vltava / Warm Vltava)
45 km
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

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 Grayling · confidence 75%
How the 72 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow40 × 22%8.8
Clarity85 × 18%15.3
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity33 × 12%4.0
Conditions total= 72
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
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
Fly Fishing in Poland and the Czech Republicfeatured in this guideGrayling Playbookgrayling tacticsEuro Nymphingsubsurface methods
Booking & contacts
At a glance

Blanice is a freestone river in South Bohemia, Czech Republic. It sits at about 371 m above sea level. The river is described as roughly 45 km long. Our data lists brown trout and grayling here. The trout season is recorded as running from 16 April to 31 August. The grayling season is recorded as running from 16 June to 30 November. Best window recorded for anglers: May–August (trout); September–November (grayling). Core methods listed: Upstream nymph; Dry fly; Small wet. Level and flow data for this water is linked from 1 gauge. Its Water Framework Directive ecological status is recorded as moderate. Nearby waters in our listings include Otava at 17 km, Otava 6 (Private Trophy Section) at 17 km and Orlík Reservoir at 32 km.