Rules at a glance
- Fly only
Water temperature for Brown Trout
Welfare risk25°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown 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
Water at 25.1°C. This is the line where catch-and-release kills brown trout. Do not fish for them today.
Likely species
Chironomids
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 as a supporter.
Start free trial14-day free trial. Cancel anytime.
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
Trout seasonSeason
1
2
2
2
2
2
2
2
2
2
2
1
Western Blue-Winged OliveHatch
2
3
3
3
3
3
3
3
2
Pale Morning DunHatch
2
3
3
2
TricoHatch
2
3
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Fly box · Brown Trout
Permits & access
Permit required — see local rules.
- Year-round catch-and-release, barbless artificial only on the interpretive Wild Trout reach — verify exact boundaries and current rules against CDFW
- THERMAL CAUTION: geothermal influence makes the temperature picture non-obvious; be conservative on summer welfare
- Water temperature here should be treated as estimated unless a live sensor is confirmed.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 4
Probably above the Brown Trout safety line — these are likely cooler, but carry a thermometer.
Gallery · 2
Hot Creek and Laurel Mountain Terrain map
The full read · show the working · for Brown Trout · confidence 90%
How the 0 is built — score × weight = contribution
Temperature0 × 28%0.0
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity50 × 12%6.0
Limiting factor: Water temperature (25.1°C) is outside Brown Trout's preferred range (10–16°C)= 52
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
Directions
Seasons & zones
- Trout 1 January → 31 December
Related guides
Booking & contacts
Hot Creek
Water temperature for Brown Trout
Welfare risk25°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown 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
Water at 25.1°C. This is the line where catch-and-release kills brown trout. Do not fish for them today.
Likely species
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 as a supporter.
Start free trial14-day free trial. Cancel anytime.
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
Trout seasonSeason
1
2
2
2
2
2
2
2
2
2
2
1
Western Blue-Winged OliveHatch
2
3
3
3
3
3
3
3
2
Pale Morning DunHatch
2
3
3
2
TricoHatch
2
3
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Fly box · Brown Trout
Permits & access
Permit required — see local rules.
- Year-round catch-and-release, barbless artificial only on the interpretive Wild Trout reach — verify exact boundaries and current rules against CDFW
- THERMAL CAUTION: geothermal influence makes the temperature picture non-obvious; be conservative on summer welfare
- Water temperature here should be treated as estimated unless a live sensor is confirmed.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 4
Probably above the Brown Trout safety line — these are likely cooler, but carry a thermometer.
Gallery · 2
Hot Creek and Laurel Mountain Terrain map
The full read · show the working · for Brown Trout · confidence 90%
How the 0 is built — score × weight = contribution
Temperature0 × 28%0.0
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity50 × 12%6.0
Limiting factor: Water temperature (25.1°C) is outside Brown Trout's preferred range (10–16°C)= 52
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
Directions
Seasons & zones
- Trout 1 January → 31 December
Related guides
Booking & contacts