Freestone · Acidic Granitic · Virginia, US

Rapidan River

Rapidan River venue image
Today · About as good as it gets
Pheasant Tail Nymph
Forecast · Today
About as good as it gets
On the feed top to bottom — start on the rises with a dry, drop a nymph if they stay down.
75% projected
Today's fly
Pheasant Tail Nymph
Pheasant Tail Nymph
Conditions on the water · Today
Live gauge
Level
Steady
0.64 m
Water temp13.5°C
ClarityClear
Weather11°C
WindN 22 km/h
Pressure1020 hPa
Rain · recent10.6 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 Brook Trout
Ideal
14°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brook 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 working for you, but insect activity is the limiting factor today.
Likely species
Mayflies
Chironomids
Gammarids
Hatch timeline · todayPeak at 21 Uhr

Peak activity at 21 Uhr — Brown Dun (Brown Dun, 5 food groups active)

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
Sculpin (North America)Hatch
2
3
2
Brown DunHatch
2
3
3
3
3
3
3
2
Early Black StoneflyHatch
2
3
2
Eastern Golden StoneHatch
2
2

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

Ranked for today
Fly box · Brook Trout
Local fly shops: Mossy Creek Fly Fishing
What's coming
Plan ahead
5-day outlook
Other water nearby · 1
Mossy Creek
60 km
Brown trout
Gallery · 1
  1. Terrain map of the venue
    Terrain map
Conservation note

Virginia's flagship 100% wild native brook-trout water (Salvelinus fontinalis). brook_trout scores as a conservation-first char comfort-overlay post-seed (char welfare ceiling ~20°C). Acid-deposition-sensitive headwater.

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

EPA ATTAINS assessment unit 'Rapidan River' (VAN-E11R_RAP01A00), 2022 Integrated Report. Aquatic Life use: Fully Supporting. 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) · VAN-E11R_RAP01A00

The full read · show the working · for Brook Trout · confidence 75%
How the 83 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure75 × 7%5.3
Insect activity42 × 12%5.0
Conditions total= 83
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
Related guides
Euro Nymphingsubsurface methods
Booking & contacts