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Where to fish

  • Forecast
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Mine

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

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United Kingdom / Highland / Bay Cromarty Firth

Bite forecast: Bay Cromarty Firth

  • 88.8 km²
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Best fishing days for the next week

  1. WednesdaySeptember 9weather-based forecast
    70/100high activity

    Cloudy: 5–9 °C

  2. ThursdaySeptember 3weather-based forecast
    62/100high activity

    Clear: 11–14 °C

  3. SundaySeptember 6weather-based forecast
    62/100high activity

    Drizzle: 12–17 °C

Nearby towns

  • Cromarty0.1 mi
  • Invergordon0.2 mi
  • Alness0.7 mi

Bay Cromarty Firth (Highland) — a spot well known among anglers. About 88.8 km² in area. Nearby towns: Cromarty, Invergordon and Alness. A coastal water: the bite here is modelled for the sea, not for a river or a lake. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.

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Nearby rivers

  • Rosskeen Burn2 mi
  • Averon River6 mi
  • Eathie Burn6 mi
  • Rosehaugh Burn7 mi
  • Avoch Burn7 mi
  • River Glass7 mi
  • Balnagown River8 mi

Nearby water bodies

  • LakeLoch Achnacloich5 mi
  • LakeLoch Catrina5 mi
  • LakeCulbokie Loch6 mi
  • BayRosemarkie Bay6 mi
  • LakeLoch Dubh7 mi
  • LakeLoch Sheilah8 mi
  • LakeLochan a' Chlaidheimh8 mi
  • LakeLochanan nan Tunnag8 mi
  • BayInner Moray Firth9 mi
  • LakeDingwall Canal9 mi

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?
Atlantic mackerelBallan wrasseBrown troutConger eelEuropean eelFlounderGrey mulletPlaicePollackThornback rayAtlantic salmonEuropean sea bassWhitingAtlantic cod

Atlantic cod

2/10 · Poor

Hourly activity

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

The bite is weak — fish are sluggish. 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

Look for structure — reefs, flats, channel edges; work them slowly near the bottom.

Lures

The water's turning murky — go with bright, noisy lures: pirk or lugworm bottom rig.

Gear

Pack transitional-season clothing — mornings and evenings are chilly. Rain is expected — don't forget a rain jacket or a waterproof shell.

Summary

A slow day — go only if you really feel like it.

How this forecast is calculated

Why this forecast

The computed water temperature is around 12 °C — warmer than the 4–12 °C comfort range for Atlantic cod: in the heat it drops deeper and feeds less often.

Computed water temperature by month; the green band is the 4–12 °C comfort rangecomfort 4–12 °C12 °C
JFMAMJJASOND

Atlantic cod 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 cod 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 · 100323:00 · 1001 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 a slow season for Atlantic cod: the best months fall at another time of year.

JFMAMJJASOND

These are the same values the bite curve above was computed from. How the forecast works

Tides

  • High water03:071.3 m
  • Low water09:19-1.7 m
  • High water15:331.2 m
  • Low water21:52-1.4 m
0:006:0012:0018:0023:000:006:0012:0018:0023:00
Sea level height by hour
00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
-0.5 m0.2 m0.9 m1.3 m1.1 m0.6 m0.2 m-0.4 m-1.2 m-1.6 m-1.5 m-1.2 m-0.8 m-0.3 m0.5 m1.1 m1.1 m0.7 m0.4 m-0.0 m-0.6 m-1.2 m-1.4 m-1.1 m

Open-Meteo tide model, grid point 7 mi away

Water

Water temp.
16 °C
In the model
12 °C
Wave
0.2 m
Period
3 s

Open-Meteo Marine model, grid cell 7.0 mi from the waterbody. Values are daily means.

3 SepThursday, September 3
+13°

Clear · feels like +10°

Low / high
+11°…+14°
Precipitation
0.0 mm
Wind
11 mph W
Cloud cover
11%
Humidity
80%
Pressure
1006 hPa
00:00+12°1.9 mm7 mpheast wind, 7 mph95%100%
01:00+13°0.7 mm5 mpheast wind, 5 mph96%100%
02:00+13°1.2 mm1 mphsoutheast wind, 1 mph98%100%
03:00+14°0.1 mm13 mphwest wind, 13 mph96%100%
04:00+13°0.1 mm13 mphwest wind, 13 mph93%100%
05:00+13°0.9 mm15 mphwest wind, 15 mph91%67%
06:00+12°0.2 mm15 mphwest wind, 15 mph88%78%
07:00+11°—13 mphwest wind, 13 mph89%40%
08:00+12°—12 mphwest wind, 12 mph88%73%
09:00+12°—10 mphwest wind, 10 mph87%84%
10:00+13°—12 mphwest wind, 12 mph83%50%
11:00+14°—14 mphwest wind, 14 mph75%62%
12:00+13°—11 mphwest wind, 11 mph80%11%
13:00+14°0.2 mm14 mphwest wind, 14 mph73%69%
14:00+13°0.8 mm12 mphsouthwest wind, 12 mph86%100%
15:00+14°0.9 mm13 mphsouthwest wind, 13 mph79%95%
16:00+14°0.2 mm11 mphsouthwest wind, 11 mph77%95%
17:00+14°—11 mphsouthwest wind, 11 mph75%73%
18:00+13°1.0 mm9 mphsouthwest wind, 9 mph84%66%
19:00+12°1.3 mm5 mphsouthwest wind, 5 mph91%100%
20:00+12°0.4 mm11 mphsouthwest wind, 11 mph87%62%
21:00+12°—7 mphsouthwest wind, 7 mph85%100%
22:00+12°0.4 mm8 mphsouthwest wind, 8 mph86%100%
23:00+11°1.3 mm9 mphsouthwest wind, 9 mph85%91%
+14°+13°+11°
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
06:24
Sunset
20:12
Day length
13 h 48 min
Sunshine hours
7 h 31 min
UV index
3
moderate
Moon
Last quarter
Moonrise
21:04
Moonset
15:37

The day is 5 min shorter than yesterday.

Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.

Solunar feeding periods

+16% in the windowThursday, September 3
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major04:55–06:55Moon overhead
  • Minor15:07–16:07Moonset
  • Major17:25–19:25Moon underfoot
  • Minor20:34–21:34Moonrise

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?