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© 2026·AI-powered bite forecast
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Belarus / Vitebskaya oblast / Lake Derba

Bite forecast: Lake Derba

  • 76 ha
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Best fishing days for the next week

  1. WednesdaySeptember 9weather-based forecast
    66/100high activity

    Cloudy: 12–22 °C

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Nearby rivers

  • Usvitsa8 km

Nearby water bodies

  • LakeNedrovo2 km
  • LakeNespish2 km
  • LakeVera3 km
  • LakeVoyso3 km
  • LakePotsekh3 km
  • LakeIlmyonok4 km
  • LakePlutinok4 km
  • LakeBoloyso5 km
  • LakeTsno5 km
  • LakeVorozhdunets5 km

Lake Derba (Vitebskaya oblast) — a popular fishing spot. About 76 ha in area. The town of Браслав is nearby. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days.

TuesdaySeptember 8weather-based forecast
64/100high activity

Cloudy: 9–19 °C

  • ThursdaySeptember 10weather-based forecast
    51/100medium activity

    Cloudy: 14–20 °C

  • Nearby towns

    • Braslav6 km

    Fishing communities on Telegram

    Local communities and country-wide chats for anglers.

    • Feeder Fishing Belarus≈ 1.2K subscribersOpen
    • Rybalou Fishing Community≈ 723 subscribersOpen

    Bite calendar

    7–Sep 13
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    AspDacePikeRuffeZanderBreamCarpWels catfishPerchGrass carpIdeRoachSilver carpBurbotChubCrucian carpBleakRuddTenchWhite bream

    Asp

    8/10 · Good

    Hourly activity

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

    The bite is strong — fish are active. Pressure is rising — activity tends to be more subdued.

    Peak bite hours

    Best time — 06:00–08:00 (dawn bite) and 19:00–21:00 (dusk bite).

    Tactics

    Look for drop-offs and gaps in the weeds, retrieve slowly, lingering over promising spots.

    Lures

    The water's turning murky — go with bright, noisy lures: casting spoon or long-casting spoon.

    Gear

    No special gear needed — seasonal clothing will do. 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 16 °C — inside the 12–24 °C comfort range for Asp, so baseline activity is high.

    Computed water temperature by month; the green band is the 12–24 °C comfort rangecomfort 12–24 °C16 °C
    JFMAMJJASOND

    Asp 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 Asp feeds0:0012:0024:00

    Pressure is rising 3 hPa over the day — the bite usually settles down after a rise.

    Pressure through the day, 3 hPa change
    00:00 · 100923:00 · 1012 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 peak season for Asp here.

    JFMAMJJASOND

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

    10 SepThursday, September 10
    +20°

    Cloudy · feels like +19°

    Low / high
    +13°…+20°
    Precipitation
    0.0 mm
    Wind
    5 m/s SW
    Cloud cover
    100%
    Humidity
    61%
    Pressure
    1006 hPa
    00:00+17°—3 m/ssouth wind, 3 m/s75%97%
    01:00+17°—3 m/ssouth wind, 3 m/s75%98%
    02:00+17°—4 m/ssouth wind, 4 m/s74%100%
    03:00+17°—4 m/ssouth wind, 4 m/s73%100%
    04:00+17°—4 m/ssouth wind, 4 m/s72%100%
    05:00+16°—4 m/ssouth wind, 4 m/s70%99%
    06:00+17°—5 m/ssouth wind, 5 m/s69%96%
    07:00+17°—5 m/ssouth wind, 5 m/s70%88%
    08:00+17°—4 m/ssouth wind, 4 m/s70%78%
    09:00+18°—4 m/ssouth wind, 4 m/s69%73%
    10:00+19°—4 m/ssouth wind, 4 m/s66%79%
    11:00+20°—4 m/ssouthwest wind, 4 m/s62%91%
    12:00+20°—5 m/ssouthwest wind, 5 m/s61%100%
    13:00+19°0.5 mm4 m/ssouthwest wind, 4 m/s70%100%
    14:00+17°0.5 mm4 m/swest wind, 4 m/s85%100%
    15:00+16°0.5 mm4 m/swest wind, 4 m/s98%100%
    16:00+15°0.4 mm3 m/swest wind, 3 m/s98%93%
    17:00+16°0.4 mm3 m/swest wind, 3 m/s93%85%
    18:00+16°0.4 mm3 m/ssouthwest wind, 3 m/s90%80%
    19:00+15°—3 m/ssouthwest wind, 3 m/s90%84%
    20:00+14°—3 m/ssouthwest wind, 3 m/s92%91%
    21:00+13°—3 m/ssouthwest wind, 3 m/s93%97%
    22:00+14°0.1 mm3 m/ssouthwest wind, 3 m/s97%88%
    23:00+14°0.1 mm3 m/ssouthwest wind, 3 m/s97%71%
    +20°+17°+13°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Thursday, September 10
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:29
    Sunset
    19:37
    Day length
    13 h 8 min
    Sunshine hours
    7 h 33 min
    UV index
    1
    low
    Moon
    Waning crescent
    Moonrise
    05:20
    Moonset
    19:20

    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 10
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major00:00–01:07Moon underfoot
    • Minor04:50–05:50Moonrise
    • Major11:32–13:32Moon overhead
    • Minor18:50–19:50Moonset

    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?