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Forecast
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© 2026·AI-powered bite forecast
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United States / Massachusetts / Back River

Bite forecast: Back River

  • length 3 mi
  • Flows into Powwow River
Loading map…

Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    62/100high activity

    Partly cloudy: 61–81 °F

Back River (Massachusetts) — a spot well known among anglers. About 6 km long. Flows into Powwow River. Close by — Amesbury, Newburyport and Haverhill. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days.

ThursdaySeptember 3weather-based forecast
59/100medium activity

Cloudy: 66–77 °F

  • MondaySeptember 7weather-based forecast
    59/100medium activity

    Clear: 54–81 °F

  • Nearby towns

    • Amesbury0.1 mi
    • Newburyport4 mi
    • Haverhill9 mi

    Nearby rivers

    • Back River2 mi
    • Powwow River2 mi
    • Cains Brook4 mi
    • Town Creek4 mi
    • Mill Creek4 mi
    • Brown's River4 mi

    Nearby water bodies

    • LakeClarks Pond0.7 mi
    • LakeLake Gardner1 mi
    • ReservoirPattens Pond2 mi
    • ReservoirBailey Pond2 mi
    • ReservoirCains Millpond3 mi
    • PondFlowering Pond3 mi
    • PondDodge Ponds4 mi
    • PondDodge Ponds4 mi
    • LakeTuxbury Pond4 mi
    • ReservoirMeadowbrook Pond4 mi
    Loading map…

    Bite calendar

    Wednesday, September 2

    Aug 31 – Sep 6
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    PikeLake troutStriped bassYellow perchAtlantic salmonBlack crappieSmallmouth bassWalleyeWhite crappieBrook troutLargemouth bassBluegillBrown troutCarpChannel catfishRainbow trout

    Atlantic salmon

    6/10 · Fair

    Hourly activity

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

    The bite is strong — fish are active. Weather is steady, with no sharp swings — fish behave predictably.

    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

    In clear water, natural colors work best: salmon spoon or salmon fly.

    Gear

    It's a hot day — a hat, sunglasses, and plenty of water are a must.

    Summary

    Worth going — it's a productive day.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 70 °F — warmer than the 39–57 °F 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 39–57 °F comfort rangecomfort 39–57 °F70 °F
    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 flat: it moves no more than 0.03 inHg over the day, so the weather isn't shifting today's bite.

    Pressure through the day, 0.03 inHg change
    00:00 · 30.0923:00 · 30.11 inHg

    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
    +74°

    Cloudy · feels like +73°

    Low / high
    +59°…+77°
    Precipitation
    0.00 in
    Wind
    7 mph E
    Cloud cover
    100%
    Humidity
    50%
    Pressure
    30.17 inHg
    00:00+62°—4 mphnortheast wind, 4 mph88%62%
    01:00+61°—3 mphnortheast wind, 3 mph88%100%
    02:00+62°—3 mphnortheast wind, 3 mph86%100%
    03:00+62°—4 mphnortheast wind, 4 mph87%100%
    04:00+61°—4 mphnortheast wind, 4 mph89%85%
    05:00+60°—4 mphnortheast wind, 4 mph93%35%
    06:00+59°—3 mphnortheast wind, 3 mph92%96%
    07:00+60°—4 mphnortheast wind, 4 mph94%98%
    08:00+65°—5 mphnortheast wind, 5 mph85%100%
    09:00+68°—5 mphnortheast wind, 5 mph76%93%
    10:00+70°—7 mphnortheast wind, 7 mph65%100%
    11:00+73°—7 mpheast wind, 7 mph56%100%
    12:00+74°—7 mpheast wind, 7 mph50%100%
    13:00+76°—6 mpheast wind, 6 mph45%100%
    14:00+77°—7 mpheast wind, 7 mph44%100%
    15:00+77°—7 mpheast wind, 7 mph46%52%
    16:00+77°—7 mpheast wind, 7 mph46%71%
    17:00+76°—8 mpheast wind, 8 mph46%100%
    18:00+74°—8 mpheast wind, 8 mph47%100%
    19:00+71°—6 mpheast wind, 6 mph50%100%
    20:00+67°—5 mpheast wind, 5 mph61%100%
    21:00+65°—6 mpheast wind, 6 mph73%100%
    22:00+64°—0 mphnortheast wind, 0 mph77%90%
    23:00+63°—3 mphnortheast wind, 3 mph79%98%
    +77°+68°+59°
    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
    06:11
    Sunset
    19:16
    Day length
    13 h 5 min
    Sunshine hours
    9 h 4 min
    UV index
    6
    high
    Moon
    Waning gibbous
    Moonrise
    21:39
    Moonset
    12:24

    The day is 3 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
    • Major03:38–05:38Moon overhead
    • Minor11:54–12:54Moonset
    • Major16:05–18:05Moon underfoot
    • Minor21:09–22:09Moonrise

    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?