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Where to fish

  • Forecast
  • Catches

Mine

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

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United Kingdom / Devon / River Tamar

Bite forecast: River Tamar

  • length 75 km
  • Flows into Hamoaze
Loading map…

Best fishing days for the next week

  1. WednesdaySeptember 9weather-based forecast
    65/100high activity

    Drizzle: 7–13 °C

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River Tamar (Devon) — one of the area's fishing spots. About 75 km long. Flows into Hamoaze. Nearest town — Plymouth. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.

Catches

Recorded 6 catches here. Most commonly caught: Grayling, Atlantic salmon, Brown trout. Peak season: June–October.

  • Grayling
    River Tamar
    18 °C13 mph
    Jun 10, 2022, 2:24 PM
  • Grayling
    River Tamar
    18 °C13 mph
    Jun 10, 2022, 1:57 PM
  • Atlantic salmon
    River Tamar
    14 °C4 mph
    Oct 11, 2021, 3:12 PM
  • Brown trout
    River Tamar
    14 °C4 mph
    Oct 11, 2021, 2:41 PM
  • Brown trout
    River Tamar
    16 °C9 mph
    Oct 10, 2021, 2:48 PM
  • Atlantic salmon
    River Tamar
    19 °C11 mph
    Jun 30, 2019, 3:53 PM
SundaySeptember 6weather-based forecast
63/100high activity

Partly cloudy: 13–19 °C

  • MondaySeptember 7weather-based forecast
    61/100high activity

    Cloudy: 12–17 °C

  • Nearby towns

    • Plymouth4 mi

    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 eelPikeBarbelDaceGraylingRuffeWhitefishZanderAtlantic salmonPerchBreamRainbow troutBrown troutCarpWels catfishIdeRoachChubCrucian carpBleakRuddTenchWhite bream

    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 rising — activity tends to be more subdued.

    Peak bite hours

    Best time — 06:00–08:00 (dawn bite) and 20:00–22:00 (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

    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 14 °C — warmer than the 4–14 °C comfort range for Atlantic salmon: in the heat it drops deeper and feeds less often.

    Computed water temperature by month; the green band is the 4–14 °C comfort rangecomfort 4–14 °C14 °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 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 active season for Atlantic salmon 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 6 verified catchesPeriod: 2019–2022

    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

    012
    222
    Atlantic salmonBrown troutGrayling
    By fish species
    ValueCatchesShare
    Atlantic salmon233%
    Brown trout233%
    Grayling233%

    By month

    vertical axis — number of catches

    023
    33
    JunOct
    By month
    ValueCatchesShare
    Jun350%
    Oct350%

    By time of day

    vertical axis — number of catches

    023
    132
    141516
    By time of day
    ValueCatchesShare
    14:00117%
    15:00350%
    16:00233%

    Air temperature, °C

    vertical axis — number of catches

    024
    24
    1015
    Air temperature, °C
    ValueCatchesShare
    10–14 °C233%
    15–19 °C467%

    Pressure, mmHg

    vertical axis — number of catches

    023
    33
    760770
    Pressure, mmHg
    ValueCatchesShare
    760–764 mmHg350%
    770–774 mmHg350%

    Wind direction

    vertical axis — number of catches

    023
    321
    NSWW
    Wind direction
    ValueCatchesShare
    N350%
    SW233%
    W117%

    Wind speed, mph

    vertical axis — number of catches

    012
    222
    4913
    Wind speed, mph
    ValueCatchesShare
    4–7 mph233%
    9–11 mph233%
    13–16 mph233%

    Nearby rivers

    • River Tamar0.2 mi
    • River Lumburn5 mi
    • River Kensey7 mi
    • River Lynher7 mi
    • River Lew7 mi
    • River Tavy7 mi
    • River Lyd8 mi
    • River Thrushel9 mi
    • River Inny9 mi

    Nearby water bodies

    • LakeAlder Lake8 mi
    • ReservoirWheal Jewell Reservoir8 mi
    • ReservoirRoadford Lake9 mi