Tailwater · Mixed · Northern California, US

Lower Yuba River

The Lower Yuba River corridor near Daguerre Point Dam, California.
Prime · Rainbow Trout
RS2 · 18-22
Primelive now
About as good as it gets
River high but settled. Coloured water — fish bigger and deeper, confident takes down the seams.
90% confidence
What moved it
  • Level18.75 mLast reading 10h ago
  • Water temp11.5°C
  • ClarityClear
Today's fly
RS2
RS218-22
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
18.75 m
Last reading 10h ago
Water temp11.5°C
ClarityClear
Weather16°C
WindSE 15 km/h
Pressure1017 hPa
Rain · recent0.0 mm
Rain · ahead4.4 mm

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

Water temperature for Rainbow Trout
Ideal
12°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
Caddisflies
terrestrials
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 10 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read with Pro.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 4 with Pro.

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Evidence
Records-basedModerate confidence

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

Through the year
0–3 scale · September 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
Western Blue-Winged OliveHatch
2
3
3
3
3
3
3
3
2
Pale Morning DunHatch
2
3
3
2
TricoHatch
2
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2

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

Ranked for today
Rainbow Trout fly box
Permits & access
Permit required — see local rules.
  • Open all year; barbless, with low-flow / steelhead closures — check CDFW
  • Holds ESA-listed wild steelhead: handle with care.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
North Fork American River
37 km
Rainbow trout · Brown trout
Feather River
40 km
Steelhead · Chinook salmon
Middle Fork American River
44 km
Rainbow trout
North Fork Yuba River
47 km
80
Rainbow trout · Brown trout
South Fork American River
57 km
Rainbow trout
Gallery · 2
  1. The Lower Yuba River corridor near Daguerre Point Dam, California.
    Lower Yuba near Daguerre Point
  2. Terrain map of the venue
    Terrain map
Conservation note

Holds ESA-listed Central Valley steelhead. These are wild fish carrying a hard story, so we name their presence and leave it at that — no catch score, no go-get-'em. Handle any you meet with real care.

Water quality · US Clean Water Act
  • Aquatic life: Impaired
What this classification means

EPA ATTAINS assessment unit 'Yuba River (Englebright Lake Dam to Feather River, Lower)' (CAR5153000020020702135622), 2024 Integrated Report. Aquatic Life use: Not Supporting. Listed impairment causes: Metals Other Than Mercury. This is a Clean Water Act assessment-unit classification (the US analogue of WFD), not a live reading.

Status is for the Clean Water Act assessment unit covering this reach.

EPA ATTAINS (Clean Water Act) · CAR5153000020020702135622

The full read · show the working · for Rainbow Trout · confidence 90%
How the 84 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time80 × 13%10.4
Pressure75 × 7%5.3
Insect activity59 × 12%7.1
Conditions total= 84
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 January → 31 December
Related guides
Euro Nymphingsubsurface methods
Booking & contacts