Freestone · Mixed · West Bohemia / Karlovy Vary, CZ

Ohře

Photo of Ohře

Major western Bohemian river, brown trout and grayling with some rainbow trout.

Poor · Rainbow Trout
Czech Nymph · 10-14
Poorlive now
Not the day for it
Low and clear — careful approach country. A morning for the obvious fish only.
90% confidence
What moved it
  • Level0.31 mLast reading 5h ago
  • Water temp22.8°C
  • ClarityClear
Today's fly
Czech Nymph
Czech Nymph10-14
Euro-nymph
Conditions on the water
Live gauge
Level
Steady
0.31 m
lowspate
Water temp22.8°C
ClarityClear
Weather33°C
WindNW 12 km/h
Pressure1014 hPa
Rain · recent0.0 mm
Rain · ahead11.6 mm

Live readings only. Trends shown where the gauge supports them.

Water temperature for Rainbow Trout
Warm — slow
22.8°Cideal 10–18°C
0°14°28°
How to fish it · for Rainbow 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 22.8°C. This is the line where catch-and-release kills brown trout. Do not fish for them today.
Hatch timeline · todayPeak at 6pm

Hatch predictions

Today's headline hatch shown — see all 6 active hatches hour by hour with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

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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
Rainbow 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.
What's coming
Plan ahead
5-day outlook
Water here at 22.8°C. Nothing cooler within range.
Gallery · 2
  1. Photo of Ohře
    Ohře
  2. Terrain map of the venue
    Terrain map
About this water

Major western Bohemian river, brown trout and grayling with some rainbow trout. Flows through the spa region near Karlovy Vary with mixed character — riffles, pools and longer glides offering varied fly fishing opportunities. A river with enough scale and diversity to sustain genuine fishing interest.

  • Mixed
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Good

WFD classification · CZOHL_0500

The full read · show the working · for Rainbow Trout · confidence 90%
How the 8 is built — score × weight = contribution
Temperature4 × 28%1.1
Flow40 × 22%8.8
Clarity85 × 18%15.3
Feeding Time60 × 13%7.8
Pressure75 × 7%5.3
Insect activity41 × 12%4.9
Limiting factor: Water temperature (22.8°C) is outside Rainbow Trout's preferred range (10–18°C)= 43
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Cooler water — back toward the 10–18 °C ideal band — would lift the score and ease welfare.
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