Freestone · Mixed · Castilla y León

Rivera de Valdavia

Rivera de Valdavia terrain map

A Pisuerga tributary running through the Valdavia country between Ventanilla and Ruesga.

Poor · Brown Trout
Klinkhammer · 14-18
Closed season
Out of season. Plenty of other water available now.
Closed — confidence not applicable today.
What moved it
  • Level0.12 mDropping in the last 6h
  • Water temp17.8°C
  • ClarityClear
Today's fly
Klinkhammer
Klinkhammer14-18
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
0.12 m
Dropping in the last 6h
Water temp17.8°C
ClarityClear
Weather19°C
WindNW 9 km/h
Pressure1022 hPa
Rain · recent0.0 mm
Rain · ahead6.2 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.
Hatch timeline · todayPeak at 6am

Hatch predictions

Today's headline hatch shown — see all 8 active hatches hour by hour with Pro.

Start free trial

14-day free trial. Cancel anytime.

Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read with Pro.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

Start free trial

14-day free trial. Cancel anytime.

Evidence
Survey-backed · regionalHigh 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
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
Permits & access
Permit required — see local rules.
  • Castilla y León licence required
  • Check JCyL pesca visor for tramo rules between Ventanilla and Ruesga.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Río Castillería
5.0 km
Brown trout
Upper Río Pisuerga
14 km
Brown trout
Río Carrión
16 km
Brown trout
Embalse de Camporredondo
18 km
Brown trout
Río Camesa
22 km
Brown trout
About this water

A Pisuerga tributary running through the Valdavia country between Ventanilla and Ruesga. Mixed geology, generally lower-gradient than the Picos-flank Pisuerga headwaters, with classic pool-riffle structure through wooded country. Wild brown trout throughout. Best fished from late April through June in the middle reaches; the river warms quickly in summer and is best left until autumn no-kill stretches reopen.

  • Mixed
The full read · show the working · for Brown Trout · confidence 75%
How the 0 is built — score × weight = contribution
Temperature60 × 28%16.8
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time50 × 13%6.5
Pressure80 × 7%5.6
Insect activity66 × 12%7.9
Conditions total= 72
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.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout Last Sunday of March → 31 July
Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts