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Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
ForecastCatchesFavorites
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© 2026·AI-powered bite forecast
0.1.0+2165 · 5ea9e037

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United Kingdom / Devon / Reservoir Upper Tamar Lake

Bite forecast: Reservoir Upper Tamar Lake

  • 31 ha
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Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    72/100high activity

    Partly cloudy: 9–15 °C

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Reservoir Upper Tamar Lake (Devon) — one of the area's fishing spots. About 31 ha in area. 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.

Catches

Recorded 5 catches here. Most commonly caught: Carp, Perch, Roach. Peak season: July–September.

  • Perch, Roach
    River Tamar
    26 °C7 mph
    Jul 22, 2021, 3:55 PM
  • Carp
    River Tamar
    14 °C16 mph
    Sep 25, 2016, 7:59 AM
  • Carp
    River Tamar
    18 °C22 mph
    Sep 24, 2016, 6:07 PM
  • Carp
    River Tamar
    18 °C22 mph
    Sep 24, 2016, 2:31 AM
  • Carp
    River Tamar
    16 °C11 mph
    Sep 23, 2016, 5:33 PM
SundaySeptember 6weather-based forecast
68/100high activity

Clear: 12–20 °C

  • MondaySeptember 7weather-based forecast
    62/100high activity

    Cloudy: 13–15 °C

  • Bite calendar

    Aug 31 – Sep 6
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    European eelPikeDaceRuffeWhitefishZanderPerchBreamBrown troutCarpWels catfishRainbow troutIdeRoachBleakChubCrucian carpWhite breamRuddTench

    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 rising — activity tends to be more subdued.

    Peak bite hours

    Best time — 12:00–16:00 (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

    No special gear needed — seasonal clothing will do. 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 14 °C — inside the 14–26 °C comfort range for Bleak, so baseline activity is high.

    Computed water temperature by month; the green band is the 14–26 °C comfort rangecomfort 14–26 °C14 °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 dropping 2 hPa over the day — fish are usually more active ahead of a weather change.

    Pressure through the day, 2 hPa change
    00:00 · 102123:00 · 1019 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

    2 SepWednesday, September 2
    +16°

    Drizzle · feels like +13°

    Low / high
    +13°…+17°
    Precipitation
    0.2 mm
    Wind
    17 mph SW
    Cloud cover
    100%
    Humidity
    99%
    Pressure
    1019 hPa
    00:00+13°—8 mphsouthwest wind, 8 mph97%100%
    01:00+13°—10 mphsouthwest wind, 10 mph96%100%
    02:00+13°—11 mphsouthwest wind, 11 mph95%100%
    03:00+13°—10 mphsouthwest wind, 10 mph96%98%
    04:00+13°0.1 mm8 mphsouthwest wind, 8 mph97%89%
    05:00+13°0.2 mm8 mphsouthwest wind, 8 mph97%100%
    06:00+13°—10 mphsouthwest wind, 10 mph97%100%
    07:00+14°—13 mphsouthwest wind, 13 mph95%100%
    08:00+14°—16 mphsouthwest wind, 16 mph94%100%
    09:00+15°—14 mphsouthwest wind, 14 mph94%100%
    10:00+15°0.1 mm15 mphsouthwest wind, 15 mph96%100%
    11:00+15°0.5 mm14 mphsouthwest wind, 14 mph98%100%
    12:00+16°0.2 mm17 mphsouthwest wind, 17 mph99%100%
    13:00+16°1.2 mm15 mphsouthwest wind, 15 mph98%100%
    14:00+16°0.2 mm17 mphsouthwest wind, 17 mph95%93%
    15:00+17°—13 mphsouthwest wind, 13 mph92%96%
    16:00+17°0.3 mm13 mphsouthwest wind, 13 mph94%99%
    17:00+16°0.1 mm11 mphsouthwest wind, 11 mph95%99%
    18:00+17°0.1 mm10 mphsouthwest wind, 10 mph93%95%
    19:00+16°—11 mphwest wind, 11 mph90%100%
    20:00+16°—11 mphwest wind, 11 mph92%98%
    21:00+15°—13 mphsouthwest wind, 13 mph93%99%
    22:00+15°—13 mphsouthwest wind, 13 mph93%100%
    23:00+15°—13 mphsouthwest wind, 13 mph93%99%
    +17°+15°+13°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Wednesday, September 2
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:30
    Sunset
    19:58
    Day length
    13 h 28 min
    Sunshine hours
    1 h 14 min
    UV index
    1
    low
    Moon
    Waning gibbous
    Moonrise
    21:31
    Moonset
    13:14

    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

    +13% in the windowWednesday, September 2
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major04:00–06:00Moon overhead
    • Minor12:44–13:44Moonset
    • Major16:27–18:27Moon underfoot
    • Minor21:01–22:01Moonrise

    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?

    BiteGuide·From anglers’ reports

    What actually worked on this water

    Based on 5 verified catchesPeriod: 2016–2021

    This is a summary of anglers' reports, not a proven cause of the bite: conditions lining up does not mean they drove it.

    By fish species

    vertical axis — number of catches

    024
    4111
    CarpPerchRoachWhite bream
    By fish species
    ValueCatchesShare
    Carp480%
    Perch120%
    Roach120%
    White bream120%

    By month

    vertical axis — number of catches

    024
    14
    JulSep
    By month
    ValueCatchesShare
    Jul120%
    Sep480%

    By time of day

    vertical axis — number of catches

    01
    11111
    38161819
    By time of day
    ValueCatchesShare
    03:00120%
    08:00120%
    16:00120%
    18:00120%
    19:00120%

    Air temperature, °C

    vertical axis — number of catches

    023
    131
    101525
    Air temperature, °C
    ValueCatchesShare
    10–14 °C120%
    15–19 °C360%
    25–29 °C120%

    Pressure, mmHg

    vertical axis — number of catches

    023
    311
    745750755
    Pressure, mmHg
    ValueCatchesShare
    745–749 mmHg360%
    750–754 mmHg120%
    755–759 mmHg120%

    Wind direction

    vertical axis — number of catches

    023
    131
    SESW
    Wind direction
    ValueCatchesShare
    SE120%
    S360%
    W120%

    Wind speed, mph

    vertical axis — number of catches

    012
    1112
    491322
    Wind speed, mph
    ValueCatchesShare
    4–7 mph120%
    9–11 mph120%
    13–16 mph120%
    22–25 mph240%

    Nearby rivers

    • River Waldon5 mi
    • Stratt6 mi
    • Neet7 mi
    • River Neet7 mi
    • River Deer7 mi
    • River Torridge8 mi
    • River Claw9 mi

    Nearby water bodies

    • ReservoirLower Tamar Lake1 mi
    • LakeMaer Lake6 mi
    • ReservoirMelbury Reservoir8 mi