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Forecast
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© 2026·AI-powered bite forecast
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United Kingdom / Scottish Borders / River Bothwell Water

Bite forecast: River Bothwell Water

  • length 7 km
  • Flows into Whiteadder Water
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Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    64/100high activity

    Partly cloudy: 9–13 °C

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River Bothwell Water (Scottish Borders) — a popular fishing spot. About 7 km long. Flows into Whiteadder Water. 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.

SundaySeptember 6weather-based forecast
61/100high activity

Drizzle: 11–18 °C

  • WednesdaySeptember 2weather-based forecast
    60/100high activity

    Cloudy: 12–16 °C

  • Bite calendar

    7–Sep 13
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    European eelWhitefishWels catfishDaceGraylingPikeRuffeZanderAtlantic salmonBarbelBreamBrown troutCarpIdePerchChubRainbow troutCrucian carpRoachRuddWhite breamBleakTench

    Atlantic salmon

    7/10 · Good

    Hourly activity

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

    The bite is strong — fish are active. Pressure is dropping — this usually boosts the bite.

    Peak bite hours

    Best time — 06:00–08:00 (dawn bite) and 19:00–21:00 (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. Rain is expected — don't forget a rain jacket or a waterproof shell.

    Summary

    Worth going — it's a productive day.

    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 dropping 11 hPa over the day — fish are usually more active ahead of a weather change.

    Pressure through the day, 11 hPa change
    00:00 · 101023:00 · 999 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

    8 SepTuesday, September 8
    +13°

    Partly cloudy · feels like +10°

    Low / high
    +9°…+13°
    Precipitation
    0.7 mm
    Wind
    9 mph SSW
    Cloud cover
    78%
    Humidity
    78%
    Pressure
    1009 hPa
    00:00+11°—17 mphwest wind, 17 mph76%33%
    01:00+10°—16 mphwest wind, 16 mph79%36%
    02:00+10°—16 mphwest wind, 16 mph81%33%
    03:00+9°—15 mphwest wind, 15 mph82%26%
    04:00+9°—14 mphwest wind, 14 mph83%16%
    05:00+9°—13 mphwest wind, 13 mph84%7%
    06:00+9°—12 mphwest wind, 12 mph83%1%
    07:00+9°—12 mphwest wind, 12 mph82%0%
    08:00+10°—12 mphwest wind, 12 mph79%6%
    09:00+11°—12 mphwest wind, 12 mph75%16%
    10:00+12°—13 mphwest wind, 13 mph70%30%
    11:00+13°0.3 mm10 mphsouthwest wind, 10 mph73%58%
    12:00+13°0.7 mm9 mphsouth wind, 9 mph78%78%
    13:00+12°1.1 mm7 mphsoutheast wind, 7 mph86%91%
    14:00+11°1.1 mm5 mpheast wind, 5 mph96%100%
    15:00+10°1.1 mm6 mpheast wind, 6 mph96%100%
    16:00+10°1.1 mm6 mpheast wind, 6 mph96%100%
    17:00+10°1.1 mm7 mphnortheast wind, 7 mph96%100%
    18:00+10°1.1 mm8 mphnortheast wind, 8 mph96%100%
    19:00+10°1.1 mm9 mphnortheast wind, 9 mph96%100%
    20:00+10°0.1 mm11 mphnortheast wind, 11 mph95%100%
    21:00+10°0.1 mm13 mphnortheast wind, 13 mph94%100%
    22:00+10°0.1 mm15 mphnortheast wind, 15 mph92%100%
    23:00+10°0.1 mm17 mphnortheast wind, 17 mph91%100%
    +13°+11°+9°
    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
    06:28
    Sunset
    19:45
    Day length
    13 h 17 min
    Sunshine hours
    0 min
    UV index
    2
    low
    Moon
    Waning crescent
    Moonrise
    02:16
    Moonset
    19:03

    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

    +11% in the windowTuesday, September 8
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Minor01:46–02:46Moonrise
    • Major09:54–11:54Moon overhead
    • Minor18:33–19:33Moonset
    • Major22:21–00:00Moon 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

    • Whiteadder Water3 mi
    • Monynut Water3 mi
    • Faseny Water4 mi
    • Dye Water4 mi
    • Watch Water5 mi
    • Spott Burn7 mi
    • Papana Water7 mi
    • Danskine Burn7 mi
    • Brox Burn7 mi
    • Whittingehame Water7 mi

    Nearby water bodies

    • ReservoirWhiteadder Reservoir2 mi
    • ReservoirWatch Water Reservoir6 mi
    • ReservoirThorters Reservoir6 mi
    • ReservoirPressmennan Lake6 mi
    • ReservoirDonolly Reservoir7 mi
    • LakeDanskine Loch8 mi