Freestone · Granite · Zhejiang, CN

Changhua Stream 昌化溪

Full View of Changhua Town, Lin'an District 01 2023-11
Poor · Makou
Pheasant Tail Nymph · Hook 16–20, unweighted
Poorlive now
Not the day for it
Low and clear — careful approach country. A morning for the obvious fish only.
50% confidence
What moved it
  • LevelLight rain recentlyNo gauge reading
  • Water temp10.4°C
  • ClarityClear
Today's fly
Pheasant Tail Nymph
Pheasant Tail NymphHook 16–20, unweighted
in season · matches water height
Conditions on the water
Estimate
Level
Light rain recently
No gauge reading
Water temp10.4°C
ClarityClear
Weather17°C
WindW 7 km/h
Pressure1018 hPa
Rain · recent2.0 mm
Rain · ahead0.5 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for Makou
Too cold
10°C est.ideal 20–26°C
0°14°28°
How to fish it · for Makou
When
De mayo a octubre, la temporada dorada local para la pesca en arroyos / De mayo a octubre, la temporada dorada reconocida localmente para la pesca en arroyos
Where
The main hill stream of western Lin'an, running past Changhua and Heqiao towns in the Tianmu mountains west of Hangzhou.
Why this works
Very poor — water clarity is working for you, but water temperature is the limiting factor today.
Sub-surface · on the nymphunder the surface

Hatch predictions

Supporters see the full sub-surface read.

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Ranked for today
Fly box · Makou
Permits & access
Permit required — see local rules.
  • A dedicated official letter to Changhua residents confirms the whole of Changhua town's watercourses including this stream and its tributaries, and bans fish finders and snagging gear outright
  • Zhejiang's one rod, one line, two hook points applies
  • / 《杭州市临安区人民政府关于实施禁渔制度的通告》(2025年发布,2026年1月1日施行)将区级以上河道22条(309.05公里)与镇级河道136条(1105.19公里)纳入全年禁渔,但娱乐性游钓除外。另有致昌化镇居民的公开信确认昌化溪及其支流全域纳入,并明令禁止探鱼、锚鱼器具。浙江的一人一竿一线、钩尖不超过两个同样适用。
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
Gallery · 2
  1. Full View of Changhua Town, Lin'an District 01 2023-11
  2. Terrain map of the venue
    Terrain map
Conservation note

⭐ Nothing here is protected. 马口 (*Opsariichthys*) is scored. ⚠️ Note that Lin'an's mountain streams hold 虹彩马口鱼, described as a Chinese endemic species distinct from the widespread *O. bidens* the `makou` profile is built on — the same genus and the same fishing, but not the same fish, and the thermal profile has not been validated against it. 溪石斑 (光唇鱼) is present on broken-rock bottom and stays prose-only. / ⭐ 此处鱼种均非保护物种。马口已纳入计分。⚠️ 需注意临安山溪中分布虹彩马口鱼,据称为中国特有种,与 `makou` 模型所依据的广布种马口(*O. bidens*)并非同种——属相同、钓法相同,但鱼不同,温度模型未针对其验证。溪石斑(光唇鱼)栖于乱石底,仅作文字说明。

The full read · show the working · for Makou · confidence 50%
How the 0 is built — score × weight = contribution
Temperature0 × 30%0.0
Flow60 × 25%15.0
Clarity95 × 20%19.0
Feeding Time85 × 15%12.8
Pressure75 × 10%7.5
Limiting factor: Water temperature (10.4°C) is outside Makou's preferred range (20–26°C)= 54
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Warmer water — toward the 20–26 °C ideal band — would lift the temperature score.
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