Freestone · Granite · Southern California, US

Kern River at Kernville

Kern River at Kernville terrain map
Prime · Rainbow Trout
Parachute Adams · 16–20
Primelive now
About as good as it gets
Low and clear — careful approach country. Take your time — read the water before you cast.
90% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp13.4°C
  • ClarityClear
Today's fly
Parachute Adams
Parachute Adams16–20
Proven pattern for this period
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp13.4°C
ClarityClear
Weather22°C
WindS 9 km/h
Pressure1013 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for Rainbow Trout
Ideal
13°C est.ideal 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
Excellent — water temperature is right today, though insect activity could be better.
Likely species
Mayflies
Blackflies
  • Blackfly larvae/pupaeMost likelyLower confidence
    #16–18–20 · Pupa
    Small dark soft-hackle drifted through riffle seams.
Chironomids
Aquatic beetles
Oligochaetes
  • Aquatic wormsMost likelyLower confidence
    #12–14–16 · Adult
    Dead-drift a worm pattern deep - a year-round staple.
Hatch timeline · todayPeak at 21:00

Hatch predictions

Today's headline hatch shown — see all 6 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

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

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Supporters see what else is on the menu.

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
2
2
2
1
Sculpin (North America)Hatch
2
3
2
Brown DunHatch
2
3
3
3
3
3
3
2
SalmonflyHatch
2
3
2
Golden StoneHatch
2
3
2

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

Ranked for today
Fly box · Rainbow Trout
SD
Sex Dungeon
2–6 · Pattern
Proven pattern for this period
Permits & access
Permit required — see local rules.
  • All year, 5 trout, Lake Isabella to Johnsondale Bridge; artificial lures and 2 trout above the bridge
  • California licence.
What's coming
Plan ahead
5-day outlook
Conservation note

Stocked rainbows at Kernville; holdover and wild fish are reported upstream but not confirmed by an agency source. Bass and other warmwater fish in the lower river toward the lake are not scored.

The full read · show the working · for Rainbow Trout · confidence 90%
How the 81 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time60 × 13%7.8
Pressure75 × 7%5.3
Insect activity57 × 12%6.8
Conditions total= 81
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 January → 31 December
Related guides
Euro Nymphingsubsurface methods
Booking & contacts