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© 2026·AI-powered bite forecast
0.1.0+2163 · 92c14a40

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United Kingdom / Cumbria / River Leith

Bite forecast: River Leith

  • length 14 km
  • Flows into River Lyvennet
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Best fishing days for the next week

  1. SundaySeptember 6weather-based forecast
    63/100high activity

    Cloudy: 12–20 °C

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River Leith (Cumbria) — a spot well known among anglers. About 14 km long. Flows into River Lyvennet. Nearest town — Penrith. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.

MondaySeptember 7weather-based forecast
61/100high activity

Cloudy: 12–14 °C

  • TuesdaySeptember 8weather-based forecast
    60/100high activity

    Drizzle: 10–12 °C

  • Nearby towns

    • Penrith4 mi

    Bite calendar

    Friday, September 4

    Aug 31 – Sep 6
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    Wels catfishWhitefishBarbelBreamCarpDaceEuropean eelGraylingPikeRuffeZanderAtlantic salmonBrown troutChubIdePerchRainbow troutBleakCrucian carpRoachRuddTenchWhite bream

    Atlantic salmon

    5/10 · Fair

    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 — 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

    An average day — best chances during peak windows.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 13 °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 °C13 °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 5 hPa over the day — the bite usually settles down after a rise.

    Pressure through the day, 5 hPa change
    00:00 · 100923:00 · 1014 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

    4 SepFriday, September 4
    +14°

    Partly cloudy · feels like +9°

    Low / high
    +12°…+15°
    Precipitation
    0.0 mm
    Wind
    20 mph WSW
    Cloud cover
    72%
    Humidity
    73%
    Pressure
    1008 hPa
    00:00+13°—8 mphsouthwest wind, 8 mph90%100%
    01:00+14°—11 mphsouthwest wind, 11 mph90%100%
    02:00+13°0.5 mm9 mphsouthwest wind, 9 mph94%100%
    03:00+13°0.1 mm10 mphsouthwest wind, 10 mph93%100%
    04:00+13°—9 mphwest wind, 9 mph93%100%
    05:00+13°—11 mphwest wind, 11 mph88%99%
    06:00+13°—10 mphwest wind, 10 mph85%100%
    07:00+12°—10 mphwest wind, 10 mph86%100%
    08:00+12°—17 mphwest wind, 17 mph80%100%
    09:00+13°—16 mphwest wind, 16 mph77%100%
    10:00+13°—15 mphwest wind, 15 mph78%100%
    11:00+14°—18 mphwest wind, 18 mph75%90%
    12:00+14°—20 mphwest wind, 20 mph73%72%
    13:00+15°0.1 mm22 mphwest wind, 22 mph74%61%
    14:00+15°—21 mphwest wind, 21 mph66%30%
    15:00+15°—19 mphwest wind, 19 mph67%37%
    16:00+15°—18 mphwest wind, 18 mph76%59%
    17:00+14°—17 mphwest wind, 17 mph73%83%
    18:00+14°—16 mphwest wind, 16 mph77%91%
    19:00+13°—13 mphwest wind, 13 mph77%29%
    20:00+12°0.3 mm13 mphwest wind, 13 mph89%80%
    21:00+12°0.1 mm14 mphwest wind, 14 mph90%39%
    22:00+12°0.3 mm14 mphwest wind, 14 mph90%27%
    23:00+12°—15 mphwest wind, 15 mph89%5%
    +15°+13°+12°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Friday, September 4
    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
    19:56
    Day length
    13 h 32 min
    Sunshine hours
    8 h 20 min
    UV index
    3
    moderate
    Moon
    Last quarter
    Moonrise
    22:13
    Moonset
    16:28

    The day is 4 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 windowFriday, September 4
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major05:51–07:51Moon overhead
    • Minor15:58–16:58Moonset
    • Major18:22–20:22Moon underfoot
    • Minor21:43–22:43Moonrise

    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

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    • River Eden5 mi
    • River Lyvennet5 mi
    • Dacre Beck6 mi
    • Haweswater Beck6 mi
    • Swindale Beck7 mi

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