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United Kingdom / Highland / River Allt a' Chòmhlain

Bite forecast: River Allt a' Chòmhlain

  • length 2 km
Loading map…

Best fishing days for the next week

  1. MondaySeptember 7weather-based forecast
    64/100high activity

    Cloudy: 10–13 °C

  2. ThursdaySeptember 10weather-based forecast
    62/100high activity

    Cloudy: 6–10 °C

  3. SundaySeptember 6weather-based forecast
    61/100high activity

    Cloudy: 11–17 °C

River Allt a' Chòmhlain (Highland) — a popular fishing spot. About 2 km long. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days.

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Nearby rivers

  • Allt Cam-bàn0.6 mi
  • Allt Gleann Gnìomhaidh1 mi
  • River Affric3 mi
  • Allt a' Chaorainn Mhoir3 mi
  • Allt na Cìche3 mi
  • Allt Grànnda3 mi
  • Allt a' Chaorainn Bhig3 mi
  • Allt an Lapain4 mi
  • River Cluanie4 mi

Nearby water bodies

  • LakeLochan na Craliag2 mi
  • LakeLoch Coire nan Dearcag3 mi
  • LakeLoch a' Bhealach4 mi
  • LakeCoire Lochan4 mi
  • LakeLoch Gaorsaic4 mi
  • LakeLoch Coulavie4 mi
  • LakeGorm Lochan4 mi
  • LakeLoch an Fhraoich-choire4 mi
  • LakeLoch na Camaig4 mi
  • LakeAmhain Gaorsaic5 mi

Bite calendar

Friday, September 4

Aug 31 – Sep 6
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?
Wels catfishBreamCarpEuropean eelWhitefishZanderAtlantic salmonBrown troutChubCrucian carpDaceGraylingIdePerchPikeRuffeWhite breamBarbelBleakRainbow troutRuddTenchRoach

Atlantic salmon

5/10 · Fair

Hourly activity

0:006:0012:0018:0023:00
Bite activity:highmediumlow

The bite is moderate — fish feed in short bursts. A thunderstorm is possible: activity rises before the front and drops after.

Peak bite hours

Best time — 06:00–08:00 (dawn bite) and 20:00–21:00 (dusk bite).

Tactics

Work the cover — snags, weed edges, hole entrances; retrieve the lure with pauses.

Lures

The water's turning murky — go with bright, noisy lures: salmon spoon or salmon fly.

Gear

Pack transitional-season clothing — mornings and evenings are chilly. A thunderstorm is possible — bring a rain jacket, and pack up at the first rumble of thunder.

Summary

An average day — best chances during peak windows.

How this forecast is calculated

Why this forecast

The computed water temperature is around 12 °C — inside the 4–14 °C comfort range for Atlantic salmon, so baseline activity is high.

Computed water temperature by month; the green band is the 4–14 °C comfort rangecomfort 4–14 °C12 °C
JFMAMJJASOND

Atlantic salmon works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.

The day: daylight hours and when Atlantic salmon feeds0:0012:0024:00

Pressure is rising 5 hPa over the day — the bite usually settles down after a rise.

Pressure through the day, 5 hPa change
00:00 · 100123:00 · 1006 hPa

One more input — the moon's feeding windows: within their hours the score sits higher than across the rest of the day. The window times are in the “Solunar feeding periods” card below.

Feeding windows on the day scale0:0012:0024:00

September is an active season for Atlantic salmon here.

JFMAMJJASOND

These are the same values the bite curve above was computed from. How the forecast works

4 SepFriday, September 4
+11°

Drizzle · feels like +6°

Low / high
+10°…+12°
Precipitation
0.6 mm
Wind
19 mph WSW
Cloud cover
100%
Humidity
88%
Pressure
997 hPa
00:00+11°—7 mphsouthwest wind, 7 mph85%5%
01:00+12°—8 mphsouthwest wind, 8 mph84%69%
02:00+11°0.3 mm6 mphsouthwest wind, 6 mph85%92%
03:00+11°1.2 mm8 mphsouthwest wind, 8 mph93%95%
04:00+11°0.5 mm10 mphsouthwest wind, 10 mph90%100%
05:00+11°1.0 mm12 mphsouthwest wind, 12 mph86%100%
06:00+11°0.9 mm16 mphsouthwest wind, 16 mph86%96%
07:00+11°1.3 mm8 mphsouthwest wind, 8 mph92%100%
08:00+12°2.1 mm11 mphsouthwest wind, 11 mph88%89%
09:00+12°0.2 mm13 mphsouthwest wind, 13 mph86%100%
10:00+12°1.3 mm17 mphwest wind, 17 mph81%73%
11:00+12°—19 mphwest wind, 19 mph73%98%
12:00+11°0.6 mm19 mphwest wind, 19 mph88%100%
13:00+12°1.0 mm22 mphwest wind, 22 mph87%100%
14:00+12°0.7 mm23 mphwest wind, 23 mph85%99%
15:00+12°0.5 mm22 mphwest wind, 22 mph85%100%
16:00+12°2.2 mm20 mphwest wind, 20 mph84%84%
17:00+12°—20 mphwest wind, 20 mph81%100%
18:00+12°0.1 mm19 mphwest wind, 19 mph79%78%
19:00+11°—19 mphwest wind, 19 mph81%94%
20:00+11°—19 mphwest wind, 19 mph84%66%
21:00+10°0.7 mm17 mphwest wind, 17 mph90%100%
22:00+10°0.3 mm18 mphwest wind, 18 mph88%89%
23:00+10°2.0 mm18 mphwest wind, 18 mph90%93%
+12°+11°+10°
Weather throughout the day
0:006:0012:0018:0023:00

Sun and moon

Friday, September 4
The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
DaylightMoon above the horizon
Sunrise
06:26
Sunset
20:09
Day length
13 h 43 min
Sunshine hours
4 h 13 min
UV index
1
low
Moon
Last quarter
Moonrise
21:59
Moonset
16:59

The day is 5 min shorter than yesterday.

Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.

Solunar feeding periods

+14% in the windowFriday, September 4
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major05:59–07:59Moon overhead
  • Minor16:29–17:29Moonset
  • Major18:30–20:30Moon underfoot
  • Minor21:29–22:29Moonrise

The windows are set by the moon's transit and rise, and the forecast above already accounts for them: within these hours the bite score sits higher than across the rest of the day, while the day's overall level still comes from the catch-calibrated model.

What are solunar periods?