Insect Hatch Tracker

Match the hatch. Catch more fish.

Real-time insect hatch predictions powered by water temperature, weather conditions, and seasonal data. Know exactly which bugs are hatching, when they peak, and which fly patterns to tie on.

9:41 AM 100%
Insect Hatch
📍
South Llano River, TX Mar 11 · Overcast · 62°F air
58°
8
Hatch Activity Heavy hatch — overcast + 58° water triggering strong mayfly & caddis emergence
Hatch Timeline Today
6 AM 10 AM 2 PM 6 PM 9 PM
Peak: 5:30 PM – 7:15 PM
🦟
Blue-Winged Olive Baetis spp. · Mayfly
PEAK
#16-20 Size
5:30 PM Peak
Heavy Density
Surface Stage
🦗
Spotted Sedge Hydropsyche spp. · Caddis
ACTIVE
#14-16 Size
6:45 PM Peak
Moderate Density
Emerger Stage
🐛
Little Yellow Sally Isoperla spp. · Stonefly
EMERGING
#14-16 Size
11:00 AM Peak
Light Density
Nymph Stage
🐝
Zebra Midge Chironomidae · Midge
WINDING DOWN
#18-22 Size
8:30 AM Peak
Light Density
Adult Stage
Recommended Fly Patterns
Parachute Adams #18 · Dry fly
98% match
RS2 Emerger #20 · Emerger
95% match
Elk Hair Caddis #14 · Dry fly
88% match
Pheasant Tail Nymph #16 · Nymph
92% match
Pro tip: BWOs hatch heaviest on overcast days. Switch to an RS2 emerger in the film when you see refusal rises — trout are keying on the emerger stage right now.

How It Works

Real-Time Hatch Predictions

AI analyzes water temperature, air temp, cloud cover, wind, and seasonal data to predict which insects are hatching right now at your location.

Hatch Activity Score

Get a 1–10 overall hatch activity score so you know at a glance whether it's worth hitting the water with a fly rod.

Species-Level Detail

See individual hatch cards for mayflies, caddis, stoneflies, and midges — each with scientific name, hook size, density, life stage, and peak time.

Hatch Timeline

Visual hour-by-hour hatch intensity chart shows exactly when activity ramps up and peaks throughout the day so you can plan your session.

AI Fly Pattern Matching

Get fly pattern recommendations matched to the active hatch with confidence scores. Includes pattern name, hook size, and fly type (dry, emerger, nymph).

Life Stage Tracking

Know whether bugs are in the nymph, emerger, or adult stage so you can fish the right depth and presentation to match what trout are eating.

Location-Aware

Hatch data is tuned to your specific river or stream. Regional insect populations and elevation are factored into every prediction.

Pro Tips & Tactics

Context-aware fishing tips based on current hatch conditions — when to switch flies, how to read refusal rises, and presentation adjustments.

Multi-Day Hatch Forecast

See hatch predictions for the next 5 days so you can plan your trip around peak insect activity, not just weather.

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