Why Fish the Bow River in Spring?
Theres something about that first float of the year. Water still cold, mountains still snow-capped, but the fish are awake and theyre hungry. After a long winter, trout feed aggressively to rebuild energy reserves.
Spring fishing on the Bow isnt about trophy hunting—thats fall territory. Its about consistent action, eager fish, and being out there when most people are still thinking about ski season.
The Case for Spring Fishing
Trout emerge from winter metabolism slumps ready to eat. Theyre not picky.
Snow-capped peaks, green shoots emerging, wildlife active. The river feels alive.
Summer crowds havent arrived. Book a week out and get your preferred dates.
Misty spring mornings on the Bow. Cold hands, warm coffee, eager fish.
Spring Fishing Month by Month
April: Season Opener
April is when we shake off the rust. Weather is unpredictable—you might get snow one day and sunshine the next. But the fish dont mind.
- Water Temp: 4-8°C (39-46°F) - still cold
- Primary Target: Rainbow trout and browns, both actively feeding
- Techniques: Slow nymphing. Fish are feeding but not chasing. Dead-drift presentations.
- Weather: Variable. Snow showers possible, sunny days too. Dress in layers.
- Crowds: Minimal. Most anglers wait for "nicer" weather.
May: Things Heat Up
May is when spring fishing really hits its stride. Water temps climb, hatches begin, and trout shift from survival mode to active feeding.
- Water Temp: 8-14°C (46-57°F) - warming nicely
- Primary Target: Rainbow trout hitting their pre-summer peak
- Techniques: Nymphs still dominate, but dry fly action starts. Watch for BWO and Caddis.
- Weather: More consistent. Warmer days, less snow risk.
- Caveat: Late May runoff can muddy water—we adjust floats accordingly.
Getting that first cast of the season just right.
Spring Fishing Techniques
1. Nymphing (The Workhorse)
Spring trout feed subsurface 90% of the time. Nymphing is how you catch them. Slow, deep drifts through runs and pools. Patience over aggression.
- Pheasant Tail — The universal producer
- San Juan Worm — Ugly but effective, especially in high water
- Zebra Midge — Small but deadly when fish are keyed on midges
- Pat's Rubber Legs — Stonefly imitation for bigger fish
2. Early Dry Flies
By late April and May, you might see fish rising. BWOs (Blue Winged Olives) hatch on overcast afternoons. When you see rises, have a Parachute Adams ready.
3. Streamers for Aggressive Fish
Some spring trout—especially larger browns—respond to streamers. Not as reliable as fall, but worth swinging through likely holds.
That moment when the rod bends and winter is officially over.
What to Expect on a Spring Trip
- • Eager, feeding fish
- • Light angling pressure
- • Beautiful spring scenery
- • Easier booking availability
- • Wildlife encounters (eagles, deer)
- • Cold mornings (dress warm)
- • Variable weather
- • Fewer trophy-sized fish than fall
- • Late May runoff possible
- • Nymphing dominates (less dry fly)
Spring fishing rewards anglers who embrace the conditions. Youre trading peak trophy odds for consistent action and that new-season energy.
What to Bring for Spring Fishing
- • Warm base layer (wool or synthetic)
- • Insulating fleece mid-layer
- • Rain/wind shell (spring showers happen)
- • Warm hat and gloves
- • Sunglasses (snow glare is real)
- • Chest-high breathable waders
- • Wading boots
- • All fishing gear
- • Flies and tackle
- • Hot coffee and lunch
Spring green starts pushing through. The river comes alive.
Booking Spring Trips
Spring is our quietest season for bookings, which works in your favor. While summer dates fill months ahead, spring trips often book 1-2 weeks out.
Booking Lead Times:
April: Book 1 week ahead (most flexible)
May: Book 1-2 weeks ahead
Late May (pre-summer): Book 2 weeks ahead as demand increases
Bow River Spring Fishing FAQ
When does the Bow River fishing season start?
We start guiding in April once conditions stabilize. Early April can be hit or miss depending on snowmelt, but by mid-April fishing is usually solid.
Is spring fishing good on the Bow?
Yes. Trout are hungry after winter and actively feeding. Youll catch fewer trophy-sized fish than fall, but action is consistent and fish are eager.
What flies work in spring?
Nymphs dominate early spring—Pheasant Tails, San Juan Worms, Midges. As water warms, stonefly nymphs and early BWO dry flies come into play.
How cold is the water in spring?
Water temps range from 4-10°C (40-50°F) in April, warming to 10-14°C (50-57°F) by late May. Trout are active but not at peak metabolism yet.
What should I wear for spring fishing?
Layers. Mornings are cold (sometimes near freezing), afternoons can be pleasant. We provide waders. Bring a warm base layer and rain shell.
Does runoff affect spring fishing?
Late May and June bring snowmelt runoff which can muddy the water. We time trips around conditions and know which sections fish best during high water.
Start Your Season on the Bow
April and May offer hungry fish, light pressure, and that unbeatable new-season feeling. Shake off the winter rust with us.
Book a Spring Trip