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Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
Forecast
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© 2026·AI-powered bite forecast
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United Kingdom / Stirling / River Forth

Bite forecast: River Forth

  • length 82 km
  • Flows into Firth of Forth
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Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    62/100high activity

    Partly cloudy: 9–14 °C

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River Forth (Stirling) — a popular fishing spot. About 82 km long. Flows into Firth of Forth. Nearby towns: Stirling and Callander. This page shows an hourly bite forecast for today and the week ahead; the algorithm factors in the weather, atmospheric pressure, and the moon phase.

Catches

Recorded 1 catch here. Most commonly caught: Brown trout. Peak season: May.

  • Brown trout
    River Forth
    17 °C9 mph
    May 19, 2014, 12:33 PM
WednesdaySeptember 2weather-based forecast
61/100high activity

Cloudy: 11–14 °C

  • ThursdaySeptember 3weather-based forecast
    57/100medium activity

    Cloudy: 14–17 °C

  • Nearby towns

    • Stirling0.2 mi
    • Callander7 mi

    Bite calendar

    Aug 31 – Sep 6
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    DaceGraylingBarbelEuropean eelPikeRuffeWhitefishBreamCarpZanderAtlantic salmonBrown troutWels catfishPerchRainbow troutChubCrucian carpIdeRoachBleakRuddTenchWhite bream

    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 — 06:00–08:00 (dawn 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

    No special gear needed — seasonal clothing will do. 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 15 °C — warmer than the 4–14 °C comfort range for Atlantic salmon: in the heat it drops deeper and feeds less often.

    Computed water temperature by month; the green band is the 4–14 °C comfort rangecomfort 4–14 °C15 °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 dropping 4 hPa over the day — fish are usually more active ahead of a weather change.

    Pressure through the day, 4 hPa change
    00:00 · 100823:00 · 1004 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

    3 SepThursday, September 3
    +17°

    Cloudy · feels like +15°

    Low / high
    +13°…+17°
    Precipitation
    0.0 mm
    Wind
    12 mph SW
    Cloud cover
    100%
    Humidity
    69%
    Pressure
    1010 hPa
    00:00+13°0.1 mm1 mphwest wind, 1 mph99%100%
    01:00+13°0.8 mm1 mphnortheast wind, 1 mph99%100%
    02:00+14°0.4 mm2 mpheast wind, 2 mph99%100%
    03:00+15°0.1 mm3 mphnorth wind, 3 mph97%100%
    04:00+16°—6 mphsouthwest wind, 6 mph94%100%
    05:00+15°—5 mphsouthwest wind, 5 mph90%93%
    06:00+14°—6 mphsouthwest wind, 6 mph92%72%
    07:00+14°—8 mphwest wind, 8 mph87%0%
    08:00+14°—5 mphwest wind, 5 mph86%87%
    09:00+16°—4 mphwest wind, 4 mph78%22%
    10:00+16°—6 mphsouthwest wind, 6 mph75%76%
    11:00+17°—7 mphsouthwest wind, 7 mph70%100%
    12:00+17°—12 mphsouthwest wind, 12 mph69%100%
    13:00+17°—14 mphsouthwest wind, 14 mph70%100%
    14:00+17°—15 mphsouthwest wind, 15 mph70%100%
    15:00+17°—11 mphsouthwest wind, 11 mph72%100%
    16:00+17°—11 mphsouthwest wind, 11 mph77%100%
    17:00+16°0.1 mm12 mphsouthwest wind, 12 mph85%100%
    18:00+16°0.1 mm10 mphsouthwest wind, 10 mph88%100%
    19:00+15°1.1 mm5 mphwest wind, 5 mph96%100%
    20:00+15°4.4 mm7 mphsouthwest wind, 7 mph97%100%
    21:00+14°0.2 mm5 mphsouthwest wind, 5 mph94%100%
    22:00+14°1.6 mm9 mphsouthwest wind, 9 mph93%100%
    23:00+14°—9 mphsouthwest wind, 9 mph90%71%
    +17°+15°+13°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Thursday, September 3
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:24
    Sunset
    20:06
    Day length
    13 h 42 min
    Sunshine hours
    4 h 7 min
    UV index
    2
    low
    Moon
    Last quarter
    Moonrise
    21:25
    Moonset
    15:17

    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

    +15% in the windowThursday, September 3
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major04:55–06:55Moon overhead
    • Minor14:47–15:47Moonset
    • Major17:25–19:25Moon underfoot
    • Minor20:55–21:55Moonrise

    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?

    Nearby rivers

    • River Forth0.5 mi
    • River Teith4 mi
    • Coillechat Burn5 mi
    • Ardoch Burn7 mi
    • Allan Water7 mi
    • Keltie Water8 mi

    Nearby water bodies

    • LakeEarlsburn Resevoir No 14 mi
    • ReservoirTouch No.4 Reservoir4 mi
    • ReservoirTouch No.3 Reservoir4 mi
    • ReservoirTouch No.2 Reservoir4 mi
    • LakeEarlsburn Resevoir No 25 mi
    • LakeLoch Rusky6 mi
    • LakeLoch Walton6 mi
    • LakeAngling Lake7 mi
    • ReservoirNorth Third7 mi
    • LakeLoch Mahaick7 mi