Fishing Conditions: GOOD

Report Rating: GOOD
Crowd Rating: Somewhat Crowded
Somewhat Crowded

Fly Fishing Report Date:

Sunday, Dec 15, 2019

Weather & Water Conditions

Weather Water
Temp: 32-35 Temp: 32-35
Sky: Clear Flow: 550
Wind: None Clarity: Crystal Clear
Precip: None Runoff: No 

Colorado Stream Update: The Juan is fishing well into winter

Current Conditions at San Juan:

Winter has arrived, and the Juan is a good choice for those looking to find some fish. The nights are getting pretty cold so expect fish to take a minute in the morning to get going. As the sun warms the water, look for trout to key in on small BWO emergers and midges. Nymph-rigs fished at the appropriate depth are going to find the most fish. There are plenty of opportunities to take fish on the surface still, with decent hatches of Baetis and Midges given the right conditions. Streamer action has been picking up slightly as well. The quality section of the San Juan sees a lot of pressure and after a whole season of fishing, trout are even more selective. Line management, depth and tippet size are all variables to consider. Tippet sizes upwards of 5x are most likely necessary.

The fishing is good.  Clear skies and 32-35 degree weather. The water temperature was between 32-35 degrees and Crystal Clear.

Angling University: Up your game.
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Colorado Fly Fishing Trips with
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Trip Includes:
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  • Waders
  • Lunch
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Likely Catch

Species: Rainbow
Weight: 3 lbs 0 oz
Length: 18 inches
Girth: 8 inches
Rainbow Trout Female Rainbow Trout Female
Rainbow Trout Male Rainbow Trout Male

Current Insect Hatches at San Juan

Insect Type: Midge

Insect: Black Midge

Color: Black

Size: 24

Time:

Black Midge Larva Illustration
Black Midge Emerger Illustration
Black Midge Adult Illustration

Recommended Flies for San Juan

Fly: Wd 40
Color: Olive
Size: 24
Time: 
Wd 40 Wd 40
Fly: Disco Midge
Color: Red
Size: 22
Time: 
Disco Midge Disco Midge
Fly: Dorsey's Top Secret Midge
Color: Brown
Size: 22
Time: 
Dorsey's Top Secret Midge Dorsey's Top Secret Midge

Colorado Hatch Conditions for Late January

Midges
Insects: Snow Midge
Color: Gray to Charcoal
Dates: Jan 1 – Dec 31
Emergence: Warmest part of day
Size: 24-28
Spinner Fall: 2-3 Hours
Snow Midge Larva illustration
Snow Midge Emerger illustration
Snow Midge Adult illustration
Illustrations © The Flyfisher Group 

Stoneflies
Insects: Micro Black
Color: Dark Brown to Black
Dates: Jan 1 – May 15
Emergence: 38-44° Water Temps Heat of Day
Size: 18-22
Spinner Fall: NA
Micro Black Nymph illustration
Micro Black Adult illustration
Illustrations © The Flyfisher Group 


Current Conditions

Clouds
Currently: Broken Clouds
Temperature:  40 F
Temp Max:  45 F
Temp Min:  37 F
Humidity: 59%
Wind: 3 E mph
Pressure: 1026
Clouds Monday 8:00PM — 36 ℉
Expect overcast clouds with temperatures ranging between 32 and 36 ℉.
Wind: 3 E mph; Humidity: 80%; 
Clouds Monday 11:00PM — 34 ℉
Expect overcast clouds with temperatures ranging between 31 and 34 ℉.
Wind: 9 ENE mph; Humidity: 83%; 
Clouds Tuesday 2:00AM — 33 ℉
Expect overcast clouds with temperatures ranging between 31 and 33 ℉.
Wind: 5 ENE mph; Humidity: 84%; 
Snow Tuesday 5:00AM — 32 ℉
Expect snow with temperatures ranging between 31 and 32 ℉.
Wind: 11 ENE mph; Humidity: 98%;  Snow: 2.75 for next 3 hours.
Snow Tuesday 8:00AM — 31 ℉
Expect snow with temperatures ranging between 31 and 31 ℉.
Wind: 9 E mph; Humidity: 98%;  Snow: 3.44 for next 3 hours.
Snow Tuesday 11:00AM — 32 ℉
Expect snow with temperatures ranging between 32 and 32 ℉.
Wind: 3 ENE mph; Humidity: 99%;  Snow: 3 for next 3 hours.
Snow Tuesday 2:00PM — 34 ℉
Expect light snow with temperatures ranging between 34 and 34 ℉.
Wind: 3 WSW mph; Humidity: 99%;  Snow: 0.38 for next 3 hours.
Clouds Tuesday 5:00PM — 33 ℉
Expect overcast clouds with temperatures ranging between 33 and 33 ℉.
Wind: 2 W mph; Humidity: 99%; 
Clouds Tuesday 8:00PM — 32 ℉
Expect overcast clouds with temperatures ranging between 32 and 32 ℉.
Wind: 4 WNW mph; Humidity: 98%; 
Clouds Tuesday 11:00PM — 33 ℉
Expect overcast clouds with temperatures ranging between 33 and 33 ℉.
Wind: 15 W mph; Humidity: 98%; 
Clouds Wednesday 2:00AM — 32 ℉
Expect overcast clouds with temperatures ranging between 32 and 32 ℉.
Wind: 18 W mph; Humidity: 98%; 
Clouds Wednesday 5:00AM — 29 ℉
Expect overcast clouds with temperatures ranging between 29 and 29 ℉.
Wind: 12 W mph; Humidity: 95%; 
Clouds Wednesday 8:00AM — 28 ℉
Expect overcast clouds with temperatures ranging between 28 and 28 ℉.
Wind: 6 WSW mph; Humidity: 91%; 
Clouds Wednesday 11:00AM — 31 ℉
Expect broken clouds with temperatures ranging between 31 and 31 ℉.
Wind: 8 WSW mph; Humidity: 96%; 
Clouds Wednesday 2:00PM — 33 ℉
Expect broken clouds with temperatures ranging between 33 and 33 ℉.
Wind: 5 S mph; Humidity: 91%; 
Clouds Wednesday 5:00PM — 32 ℉
Expect broken clouds with temperatures ranging between 32 and 32 ℉.
Wind: 2 W mph; Humidity: 90%; 
Clouds Wednesday 8:00PM — 28 ℉
Expect broken clouds with temperatures ranging between 28 and 28 ℉.
Wind: 2 SE mph; Humidity: 86%; 
Clouds Wednesday 11:00PM — 25 ℉
Expect scattered clouds with temperatures ranging between 25 and 25 ℉.
Wind: 4 NNW mph; Humidity: 86%; 
Clouds Thursday 2:00AM — 23 ℉
Expect few clouds with temperatures ranging between 23 and 23 ℉.
Wind: 8 NE mph; Humidity: 86%; 
Clouds Thursday 5:00AM — 22 ℉
Expect scattered clouds with temperatures ranging between 22 and 22 ℉.
Wind: 8 NE mph; Humidity: 79%;