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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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Canada / Ontario / Otonabee River

Bite forecast: Otonabee River

  • length 54 km
  • Flows into Rice Lake
Loading map…

Best fishing days for the next week

  1. WednesdaySeptember 9weather-based forecast
    67/100high activity

    Cloudy: 15–21 °C

  2. TuesdaySeptember 8weather-based forecast
    66/100high activity

    Drizzle: 9–13 °C

  3. SundaySeptember 6weather-based forecast
    60/100high activity

    Partly cloudy: 13–25 °C

Otonabee River (Ontario) — a spot well known among anglers. About 54 km long. Flows into Rice Lake. Nearest town — Peterborough. 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.

Nearby towns

  • Peterborough0.3 km

Nearby water bodies

  • LakeLily Lake5 km
  • LakeOtonabee River9 km
  • LakeChemong Lake13 km
  • LakeIndian River14 km

Catches

Recorded 5 catches here. Most commonly caught: Smallmouth bass, Muskellunge, Walleye. Peak season: June–November.

  • Smallmouth bass — Otonabee River, Sep 23, 2025, 1:46 PM
    Smallmouth bass
    Otonabee River
    Sep 23, 2025, 1:46 PM
  • Smallmouth bass — Otonabee River, Sep 16, 2025, 12:05 PM
    Smallmouth bass
    Otonabee River
    Sep 16, 2025, 12:05 PM
  • Walleye — Otonabee River, Oct 12, 2021, 6:43 PM
    Walleye
    Otonabee River
    Oct 12, 2021, 6:43 PM
  • Muskellunge — Otonabee River, Jun 22, 2018, 4:18 PM
    Muskellunge
    Otonabee River
    Jun 22, 2018, 4:18 PM
  • Muskellunge — Otonabee River, Nov 09, 2011, 1:04 PM
    Muskellunge
    Otonabee River
    Nov 09, 2011, 1:04 PM
Loading map…

Bite calendar

Thursday, September 3

Aug 31 – Sep 6
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?
CarpBrook troutChannel catfishCoho salmonLake sturgeonLargemouth bassYellow perchBrown troutMuskellungePikeSaugerSmallmouth bassSteelheadWalleyeWhitefishAtlantic salmonChinook salmonRainbow troutBlack crappieLake troutBurbotRainbow smelt

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 20:00–22:00 (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

No special gear needed — seasonal clothing will do.

Summary

An average day — best chances during peak windows.

How this forecast is calculated

Why this forecast

The computed water temperature is around 16 °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 °C16 °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 4 hPa over the day — the bite usually settles down after a rise.

Pressure through the day, 4 hPa change
00:00 · 101023:00 · 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

3 SepThursday, September 3
+16°

Cloudy · feels like +16°

Low / high
+15°…+19°
Precipitation
0.0 mm
Wind
3 m/s NW
Cloud cover
100%
Humidity
92%
Pressure
1012 hPa
00:00+16°—2 m/swest wind, 2 m/s90%57%
01:00+15°—2 m/snorth wind, 2 m/s90%100%
02:00+16°—2 m/snorthwest wind, 2 m/s92%89%
03:00+15°—2 m/snorthwest wind, 2 m/s93%39%
04:00+15°—2 m/snorthwest wind, 2 m/s95%57%
05:00+15°—1 m/swest wind, 1 m/s96%39%
06:00+15°—2 m/snorthwest wind, 2 m/s97%100%
07:00+15°—2 m/swest wind, 2 m/s96%100%
08:00+16°—2 m/swest wind, 2 m/s95%100%
09:00+16°—3 m/swest wind, 3 m/s94%100%
10:00+16°—3 m/snorthwest wind, 3 m/s96%100%
11:00+16°—3 m/snorthwest wind, 3 m/s93%100%
12:00+16°—3 m/snorthwest wind, 3 m/s92%100%
13:00+16°—3 m/snorthwest wind, 3 m/s92%100%
14:00+16°—3 m/snorthwest wind, 3 m/s92%100%
15:00+17°—3 m/snorthwest wind, 3 m/s91%100%
16:00+18°—3 m/snorthwest wind, 3 m/s85%100%
17:00+18°—3 m/snorthwest wind, 3 m/s84%96%
18:00+19°—3 m/snorthwest wind, 3 m/s81%66%
19:00+18°—3 m/snorthwest wind, 3 m/s82%57%
20:00+17°—2 m/swest wind, 2 m/s87%100%
21:00+17°—2 m/snorthwest wind, 2 m/s89%100%
22:00+17°—2 m/snorthwest wind, 2 m/s89%100%
23:00+16°—2 m/snorthwest wind, 2 m/s89%72%
+19°+17°+15°
Weather throughout the day
0:006:0012:0018:0023:00

Sun and moon

Thursday, September 3
The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
DaylightMoon above the horizon
Sunrise
06:46
Sunset
20:09
Day length
13 h 23 min
Sunshine hours
50 min
UV index
1
low
Moon
Last quarter
Moonrise
22:47
Moonset
14:14

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

+12% in the windowThursday, September 3
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major05:03–07:03Moon overhead
  • Minor13:44–14:44Moonset
  • Major17:33–19:33Moon underfoot
  • Minor22:17–23:17Moonrise

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: 2011–2025

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
221
MuskellungeSmallmouth bassWalleye
By fish species
ValueCatchesShare
Muskellunge240%
Smallmouth bass240%
Walleye120%

By month

vertical axis — number of catches

012
1211
JunSepOctNov
By month
ValueCatchesShare
Jun120%
Sep240%
Oct120%
Nov120%

By time of day

vertical axis — number of catches

012
2111
891214
By time of day
ValueCatchesShare
08:00240%
09:00120%
12:00120%
14:00120%