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Forecast
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© 2026·AI-powered bite forecast
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Canada / Ontario / River Twelve Mile Creek

Bite forecast: River Twelve Mile Creek

  • length 28 km
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Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    69/100high activity

    Clear: 2–14 °C

  2. SundaySeptember 6weather-based forecast
    63/100high activity

    Clear: 13–26 °C

  3. SaturdaySeptember 5weather-based forecast
    61/100high activity

    Clear: 11–24 °C

Nearby towns

  • St. Catharines0.6 km
  • Niagara Falls15 km
  • Niagara-on-the-Lake16 km

River Twelve Mile Creek (Ontario) — a spot well known among anglers. About 28 km long. Close by — St. Catharines, Niagara Falls and Niagara-on-the-Lake. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days.

Loading map…

Bite calendar

Aug 31 – Sep 6
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?
CarpBrook troutCoho salmonLake sturgeonLargemouth bassYellow perchChannel catfishMuskellungePikeSaugerSmallmouth bassSteelheadWalleyeWhitefishAtlantic salmonBrown troutRainbow troutBlack crappieChinook salmonLake troutBurbotRainbow smelt

Atlantic salmon

6/10 · Fair

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 — 07:00–08:00 (dawn bite) and 20:00–21:00 (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

Pack transitional-season clothing — mornings and evenings are chilly.

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 dropping 1 hPa over the day — fish are usually more active ahead of a weather change.

Pressure through the day, 1 hPa change
00:00 · 102023:00 · 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

5 SepSaturday, September 5
+21°

Clear · feels like +22°

Low / high
+11°…+24°
Precipitation
0.0 mm
Wind
1 m/s ESE
Cloud cover
10%
Humidity
57%
Pressure
1021 hPa
00:00+12°—2 m/snortheast wind, 2 m/s97%9%
01:00+12°—1 m/snortheast wind, 1 m/s97%100%
02:00+12°—1 m/snorth wind, 1 m/s94%100%
03:00+12°—1 m/swest wind, 1 m/s94%100%
04:00+12°—1 m/snorth wind, 1 m/s94%100%
05:00+11°—1 m/snortheast wind, 1 m/s96%69%
06:00+11°—1 m/snortheast wind, 1 m/s96%94%
07:00+11°—1 m/snortheast wind, 1 m/s97%100%
08:00+12°—1 m/snortheast wind, 1 m/s93%46%
09:00+15°—1 m/seast wind, 1 m/s82%17%
10:00+17°—1 m/seast wind, 1 m/s71%15%
11:00+19°—1 m/seast wind, 1 m/s63%12%
12:00+21°—1 m/ssoutheast wind, 1 m/s57%10%
13:00+22°—2 m/ssoutheast wind, 2 m/s51%19%
14:00+23°—2 m/ssoutheast wind, 2 m/s48%76%
15:00+23°—2 m/ssouth wind, 2 m/s46%90%
16:00+24°—2 m/ssouth wind, 2 m/s45%79%
17:00+23°—2 m/ssouth wind, 2 m/s46%9%
18:00+23°—2 m/ssouth wind, 2 m/s51%0%
19:00+21°—1 m/ssouth wind, 1 m/s64%0%
20:00+17°—1 m/ssoutheast wind, 1 m/s71%0%
21:00+16°—2 m/ssoutheast wind, 2 m/s74%64%
22:00+15°—2 m/ssouth wind, 2 m/s77%57%
23:00+14°—2 m/ssouth wind, 2 m/s81%11%
+24°+17°+11°
Weather throughout the day
0:006:0012:0018:0023:00

Sun and moon

Saturday, September 5
The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
DaylightMoon above the horizon
Sunrise
06:49
Sunset
20:05
Day length
13 h 16 min
Sunshine hours
13 h
UV index
5
moderate
Moon
Waning crescent
Moonrise
—
Moonset
16:28

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

+15% in the windowSaturday, September 5
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major07:11–09:11Moon overhead
  • Minor15:58–16:58Moonset
  • Major19:42–21:42Moon underfoot

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?

Measured river conditions are available for Twelve Mile Creek: current gauge height, streamflow, and water temperature when reported by the source.

Water

Streamflow
0.3 m³/s

USGS gauge TWELVE MILE CREEK NEAR POWER GLEN, 3 km away · measured 2026-09-02 08:35 · data source · provisional data, subject to revision

Catches

Recorded 1 catch here. Most commonly caught: Bluegill. Peak season: June.

  • Bluegill — Twelve Mile Creek, Jun 27, 12:17 PM
    Bluegill
    Twelve Mile Creek
    Jun 27, 12:17 PM

Nearby rivers

  • Fifteen Mile Creek5 km
  • Sixteen Mile Creek8 km

Nearby water bodies

  • ReservoirLake Gibson Reservoir3 km
  • ReservoirLake Gibson Reservoir3 km
  • LakeLarge Clay Borrow Pit Pond6 km
  • LakeLake Gibson6 km
  • LakeSixteen Mile Pond9 km
  • LakeFifteen Mile Pond10 km
  • PondMartindale Pond11 km
  • LakeJordan Harbour11 km
  • LakeBeacon12 km