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© 2026·AI-powered bite forecast
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United Kingdom / Highland / River Coiltie

Bite forecast: River Coiltie

  • length 15 km
  • Flows into Urquhart Bay
Loading map…

Best fishing days for the next week

  1. ThursdaySeptember 10weather-based forecast
    68/100high activity

    Drizzle: 9–12 °C

  2. MondaySeptember 7weather-based forecast
    63/100high activity

    Drizzle: 9–12 °C

  3. FridaySeptember 11weather-based forecast
    63/100high activity

    Drizzle: 10–14 °C

Nearby towns

  • Beauly11 mi

River Coiltie (Highland) — a spot well known among anglers. About 15 km long. Flows into Urquhart Bay. The town of Beauly is nearby. Here you'll find a bite prediction — when fish are active and which hours give the best chances, adjusted for weather and pressure.

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Nearby rivers

  • Grotaig Burn3 mi

Nearby water bodies

  • PondLoch nan Eun0.9 mi
  • PondLoch nan Cat0.9 mi
  • PondLoch Dubh1 mi
  • LakeLoch na Faoileige2 mi
  • Lakeloch nan Oighreagan2 mi
  • LakeLoch nam Breac Dearga3 mi
  • LakeLoch Meiklie3 mi
  • LakeLoch a' Choire Bhuidhe3 mi
  • LakeLoch Ness3 mi
  • LakeLoch an t Sionnaich3 mi

Bite calendar

Saturday, September 5

Aug 31 – Sep 6
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?
BreamCarpWels catfishAtlantic salmonBrown troutChubCrucian carpDaceGraylingIdePikeRuffeWhite breamWhitefishZanderBarbelEuropean eelPerchRainbow troutRuddTenchBleakRoach

Atlantic salmon

6/10 · 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 — 07:00–08:00 (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 14 hPa over the day — the bite usually settles down after a rise.

Pressure through the day, 14 hPa change
00:00 · 100623:00 · 1020 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

5 SepSaturday, September 5
+12°

Partly cloudy · feels like +7°

Low / high
+9°…+13°
Precipitation
0.0 mm
Wind
17 mph WNW
Cloud cover
59%
Humidity
71%
Pressure
1017 hPa
00:00+10°0.2 mm20 mphwest wind, 20 mph87%98%
01:00+10°2.4 mm19 mphwest wind, 19 mph93%100%
02:00+10°0.2 mm20 mphwest wind, 20 mph90%95%
03:00+10°0.3 mm19 mphwest wind, 19 mph91%95%
04:00+10°—21 mphwest wind, 21 mph85%88%
05:00+10°—20 mphwest wind, 20 mph84%76%
06:00+9°0.6 mm21 mphwest wind, 21 mph87%83%
07:00+9°—18 mphwest wind, 18 mph86%45%
08:00+10°—18 mphwest wind, 18 mph86%0%
09:00+10°—16 mphwest wind, 16 mph84%100%
10:00+11°0.5 mm17 mphwest wind, 17 mph81%80%
11:00+11°—16 mphwest wind, 16 mph77%87%
12:00+12°—17 mphwest wind, 17 mph71%59%
13:00+13°—15 mphwest wind, 15 mph70%80%
14:00+13°—14 mphwest wind, 14 mph68%61%
15:00+12°—13 mphwest wind, 13 mph75%96%
16:00+13°—11 mphwest wind, 11 mph76%99%
17:00+12°0.1 mm11 mphwest wind, 11 mph82%85%
18:00+12°0.4 mm9 mphwest wind, 9 mph80%47%
19:00+12°—6 mphwest wind, 6 mph81%79%
20:00+11°—2 mphwest wind, 2 mph87%100%
21:00+11°—1 mphsouth wind, 1 mph89%100%
22:00+10°—1 mphsouthwest wind, 1 mph88%100%
23:00+10°—2 mpheast wind, 2 mph87%100%
+13°+11°+9°
Weather throughout the day
0:006:0012:0018:0023:00

Sun and moon

Saturday, September 5
The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
DaylightMoon above the horizon
Sunrise
06:28
Sunset
20:06
Day length
13 h 38 min
Sunshine hours
9 h 25 min
UV index
2
low
Moon
Waning crescent
Moonrise
23:06
Moonset
18:03

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 windowSaturday, September 5
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major07:02–09:02Moon overhead
  • Minor17:33–18:33Moonset
  • Major19:33–21:33Moon underfoot
  • Minor22:36–23:36Moonrise

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?