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  • Forecast
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© 2026·AI-powered bite forecast
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United Kingdom / Perth and Kinross / Castlehill Reservoir

Bite forecast: Castlehill Reservoir

  • 22 ha
Loading map…

Best fishing days for the next week

  1. WednesdaySeptember 9weather-based forecast
    74/100high activity

    Partly cloudy: 6–12 °C

Castlehill Reservoir (Perth and Kinross) — a popular fishing spot. About 22 ha in area. Nearby towns: Auchterarder, Kinross and Bridge of Earn. 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.

ThursdaySeptember 3weather-based forecast
65/100high activity

Cloudy: 11–15 °C

  • SundaySeptember 6weather-based forecast
    65/100high activity

    Drizzle: 14–17 °C

  • Nearby towns

    • Auchterarder6 mi
    • Kinross7 mi
    • Bridge of Earn12 mi
    Loading map…

    Bite calendar

    7–Sep 13
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    Wels catfishBreamDaceEuropean eelWhitefishZanderBrown troutCarpIdePerchPikeRuffeChubCrucian carpRainbow troutWhite breamBleakRoachRuddTench

    Bleak

    4/10 · 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 11 °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 °C11 °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
    +13°

    Cloudy · feels like +10°

    Low / high
    +6°…+14°
    Precipitation
    0.0 mm
    Wind
    8 mph WNW
    Cloud cover
    100%
    Humidity
    54%
    Pressure
    1006 hPa
    00:00+8°—2 mphwest wind, 2 mph96%81%
    01:00+7°—2 mphwest wind, 2 mph96%72%
    02:00+7°—2 mphwest wind, 2 mph97%66%
    03:00+6°—2 mphwest wind, 2 mph97%63%
    04:00+6°—2 mphwest wind, 2 mph98%64%
    05:00+6°0.2 mm3 mphwest wind, 3 mph100%75%
    06:00+6°0.2 mm3 mphwest wind, 3 mph100%92%
    07:00+7°0.2 mm4 mphwest wind, 4 mph99%100%
    08:00+8°—5 mphwest wind, 5 mph91%91%
    09:00+10°—6 mphnorthwest wind, 6 mph79%73%
    10:00+11°—8 mphnorthwest wind, 8 mph69%64%
    11:00+12°—7 mphnorthwest wind, 7 mph62%100%
    12:00+13°—8 mphnorthwest wind, 8 mph54%100%
    13:00+14°—9 mphnorthwest wind, 9 mph50%100%
    14:00+13°0.3 mm9 mphnorthwest wind, 9 mph51%94%
    15:00+13°0.3 mm9 mphnorthwest wind, 9 mph55%86%
    16:00+12°0.3 mm9 mphnorthwest wind, 9 mph62%77%
    17:00+11°0.3 mm8 mphnorthwest wind, 8 mph69%66%
    18:00+10°0.3 mm8 mphnorthwest wind, 8 mph76%57%
    19:00+9°0.3 mm8 mphnorthwest wind, 8 mph80%48%
    20:00+9°—7 mphnorthwest wind, 7 mph82%40%
    21:00+8°—7 mphnorthwest wind, 7 mph82%32%
    22:00+8°—7 mphnorthwest wind, 7 mph82%24%
    23:00+7°—7 mphnorthwest wind, 7 mph81%18%
    +14°+10°+6°
    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
    06:32
    Sunset
    19:52
    Day length
    13 h 20 min
    Sunshine hours
    12 h 46 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

    +15% 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

    • River Devon2 mi
    • North Queich6 mi
    • Black Devon6 mi
    • Tillicoultry Burn6 mi

    Nearby water bodies

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    • ReservoirGlensherup Reservoir2 mi
    • ReservoirLower Glendevon Reservoir4 mi
    • ReservoirUpper Glendevon Reservoir6 mi
    • LakeBlack Loch6 mi
    • LakeKeltie Loch7 mi
    • LakeWhite Moss Loch7 mi
    • LakeLurg Loch7 mi
    • LakeLoch Glow Reservoir7 mi
    • LakeDow Loch7 mi