08/10/2026
🌊 WATER TEMP & FLOW UPDATE🌡️
Hey anglers, as we navigate the heat of late summer, keeping our fishery healthy is our top priority. We are keeping a close eye on the conditions, and with low flows and warm air temps, the river is feeling the heat. Here is what every angler on the Rio needs to know right now:
🌡️ The Temp Thresholds (Why Water Temp Matters):
• Under 65°F: Green light. Trout process oxygen efficiently and fight/recover well.
• 65°F+: Red light. Stop fishing for trout. High water temps dramatically decrease dissolved oxygen in the river.
⚠️ The High Mortality Risk:When water temps hit 65°F and above, fighting a trout creates severe lactic acid buildup. Even if a fish swims away when you release it, the physiological stress and lack of oxygen in warm water result in extremely high post-release mortality. A fish caught in 70°F water often dies hours later.
🦉 Follow the "Hoot Owl" Rule: We strongly encourage all anglers to follow self-imposed Hoot Owl rules and carry a stream thermometer and check temps frequently.Reel it in by 12:00 PM (Noon) or as soon as water temps hit 65°F.Do NOT fish in the late afternoon or evening when water temps peak, even if the air starts to cool down.
Giving our trout a rest during the hottest parts of the day keeps the fishery strong for the fall run! 😎
👀What to do instead? Drop by the shop to grab a stream thermometer, re-spool your reels, or ask our staff about targeting warm-water species or hiking up to cold high-alpine lakes where the fish are active and water temps are safe!
Thank you for being great stewards of the Rio Grande. Keep 'em wet, keep 'em cold, and pack a thermometer!
📸: Taken at Big Meadows while the water temps were safe!