Where to fish

  • Forecast
  • Catches

Mine

  • Favorites

Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
ForecastCatchesFavorites
AboutHow the forecast worksWhere fish livePrivacyTerms[email protected]
© 2026·AI-powered bite forecast
0.1.0+2163 · 92c14a40

We use cookies for analytics and advertising. Cookies necessary for the site to function are always kept. Learn more

United Kingdom / Stirling / Waltersmuir Reservoir

Bite forecast: Waltersmuir Reservoir

  • 3 ha
Loading map…

Best fishing days for the next week

  1. WednesdaySeptember 9weather-based forecast
    69/100high activity

    Cloudy: 3–15 °C

Loading map…

Waltersmuir Reservoir (Stirling) — one of the area's fishing spots. About 3 ha in area. Close by — Stirling and Callander. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days.

ThursdaySeptember 3weather-based forecast
62/100high activity

Cloudy: 13–18 °C

  • SundaySeptember 6weather-based forecast
    58/100medium activity

    Drizzle: 16–18 °C

  • Nearby towns

    • Stirling4 mi
    • Callander12 mi

    Bite calendar

    7–Sep 13
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    DaceEuropean eelPikeWhitefishRuffeZanderBreamWels catfishPerchRainbow troutBrown troutCarpIdeRoachChubCrucian carpWhite breamBleakRuddTench

    Bleak

    3/10 · Weak

    Hourly activity

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

    The bite is moderate — fish feed in short bursts. Pressure is dropping — this usually boosts the bite.

    Peak bite hours

    Best time — 10:00–15:00 (daytime activity).

    Tactics

    Chum one spot near a drop-off and wait for fish to arrive — don't chase them.

    Lures

    Today's bait — maggot or small hook with dough bait. In cold or murky water, add scent to your chum.

    Gear

    Pack transitional-season clothing — mornings and evenings are chilly. Rain is expected — don't forget a rain jacket or a waterproof shell.

    Summary

    An average day — best chances during peak windows.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 13 °C — colder than the 14–26 °C comfort range for Bleak: the fish conserves energy and takes more cautiously.

    Computed water temperature by month; the green band is the 14–26 °C comfort rangecomfort 14–26 °C13 °C
    JFMAMJJASOND

    Bleak feeds by day — between sunrise and sunset; their times are in the sun-and-moon card above.

    The day: daylight hours and when Bleak feeds0:0012:0024:00

    Pressure is rising 4 hPa over the day — the bite usually settles down after a rise.

    Pressure through the day, 4 hPa change
    00:00 · 100723:00 · 1011 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 average month for Bleak here.

    JFMAMJJASOND

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

    8 SepTuesday, September 8
    +15°

    Cloudy · feels like +12°

    Low / high
    +5°…+16°
    Precipitation
    0.0 mm
    Wind
    8 mph WNW
    Cloud cover
    93%
    Humidity
    56%
    Pressure
    1007 hPa
    00:00+9°—1 mphsouthwest wind, 1 mph98%74%
    01:00+8°—1 mphsouthwest wind, 1 mph98%58%
    02:00+7°—1 mphsouthwest wind, 1 mph98%39%
    03:00+6°—2 mphsouthwest wind, 2 mph98%20%
    04:00+5°—2 mphsouthwest wind, 2 mph98%14%
    05:00+6°—2 mphsouthwest wind, 2 mph99%37%
    06:00+7°—2 mphwest wind, 2 mph99%74%
    07:00+8°—2 mphwest wind, 2 mph97%92%
    08:00+10°—3 mphwest wind, 3 mph90%67%
    09:00+11°—3 mphwest wind, 3 mph80%23%
    10:00+13°—4 mphwest wind, 4 mph71%0%
    11:00+14°—7 mphwest wind, 7 mph64%94%
    12:00+15°—8 mphwest wind, 8 mph56%93%
    13:00+15°—9 mphnorthwest wind, 9 mph52%92%
    14:00+16°0.4 mm9 mphnorthwest wind, 9 mph51%92%
    15:00+15°0.4 mm9 mphnorthwest wind, 9 mph53%93%
    16:00+15°0.4 mm8 mphnorthwest wind, 8 mph57%94%
    17:00+14°0.4 mm8 mphnorthwest wind, 8 mph61%94%
    18:00+13°0.4 mm7 mphnorthwest wind, 7 mph66%92%
    19:00+12°0.4 mm6 mphnorthwest wind, 6 mph70%86%
    20:00+11°0.3 mm6 mphnorthwest wind, 6 mph73%75%
    21:00+10°0.3 mm5 mphnorthwest wind, 5 mph77%59%
    22:00+9°0.3 mm5 mphwest wind, 5 mph81%42%
    23:00+7°0.3 mm4 mphwest wind, 4 mph85%24%
    +16°+10°+5°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Tuesday, September 8
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:34
    Sunset
    19:53
    Day length
    13 h 19 min
    Sunshine hours
    12 h 47 min
    UV index
    1
    low
    Moon
    Waning crescent
    Moonrise
    02:20
    Moonset
    19:07

    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 windowTuesday, September 8
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Minor01:50–02:50Moonrise
    • Major09:58–11:58Moon overhead
    • Minor18:37–19:37Moonset
    • Major22:25–00:00Moon underfoot

    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

    • Loss Burn2 mi
    • Allan Water2 mi
    • Menstrie Burn3 mi
    • River Devon4 mi
    • Ardoch Burn4 mi
    • River Forth6 mi
    • Bannock Burn6 mi
    • Tillicoultry Burn7 mi
    • River Knaik7 mi

    Nearby water bodies

    • ReservoirCocksburn Reservoir1 mi
    • ReservoirLossburn Reservoir2 mi
    • LakeAirthrey Loch2 mi
    • LakeFishery6 mi
    • ReservoirUpper Glendevon Reservoir7 mi
    • LakeCarsebreck Loch7 mi