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Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
Forecast
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© 2026·AI-powered bite forecast
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United Kingdom / East Lothian / River Biel Water

Bite forecast: River Biel Water

  • length 10 km
Loading map…

Best fishing days for the next week

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

    Partly cloudy: 9–13 °C

  2. WednesdaySeptember 2weather-based forecast
    61/100high activity

    Cloudy: 12–17 °C

  3. ThursdaySeptember 3weather-based forecast
    59/100medium activity

    Cloudy: 15–18 °C

Nearby towns

  • Haddington6 mi

River Biel Water (East Lothian) — a spot well known among anglers. About 10 km long. The town of Haddington is nearby. Here you'll find a bite prediction — when fish are active and which hours give the best chances, adjusted for weather and pressure.

Loading map…

Catches

Recorded 2 catches here. Most commonly caught: Flounder. Peak season: June–November.

  • Flounder — Biel Water, Jun 20, 2025, 4:21 PM
    Flounder
    Biel Water
    22 °C2 mph
    Jun 20, 2025, 4:21 PM
  • Flounder
    Biel Water
    11 °C20 mph
    Nov 01, 2020, 11:56 AM

Nearby rivers

  • Spott Burn2 mi
  • Whittingehame Water2 mi
  • Brox Burn3 mi
  • Papana Water4 mi
  • Whiteadder Water7 mi
  • Danskine Burn7 mi
  • Bothwell Water7 mi
  • Gifford Water8 mi
  • Faseny Water9 mi
  • Colstoun Water9 mi

Nearby water bodies

  • ReservoirPressmennan Lake2 mi
  • LakeSeafield Pond2 mi
  • ReservoirThorters Reservoir4 mi
  • ReservoirDonolly Reservoir6 mi
  • LakeBara Loch6 mi
  • LakeDanskine Loch7 mi
  • ReservoirWhiteadder Reservoir8 mi

Bite calendar

7–Sep 13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?
DaceEuropean eelGraylingPikeWhitefishBarbelRuffeZanderAtlantic salmonBreamBrown troutWels catfishPerchRainbow troutCarpIdeChubCrucian carpRoachWhite breamBleakRuddTench

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 dropping — this usually boosts the bite.

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

The water's turning murky — go with bright, noisy lures: salmon spoon or salmon fly.

Gear

Pack transitional-season clothing — mornings and evenings are chilly. 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 13 °C — inside the 4–14 °C comfort range for Atlantic salmon, so baseline activity is high.

Computed water temperature by month; the green band is the 4–14 °C comfort rangecomfort 4–14 °C13 °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 10 hPa over the day — fish are usually more active ahead of a weather change.

Pressure through the day, 10 hPa change
00:00 · 101023:00 · 1000 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

8 SepTuesday, September 8
+13°

Partly cloudy · feels like +11°

Low / high
+9°…+13°
Precipitation
0.1 mm
Wind
9 mph SSE
Cloud cover
72%
Humidity
78%
Pressure
1009 hPa
00:00+11°0.1 mm19 mphwest wind, 19 mph81%46%
01:00+11°0.1 mm19 mphwest wind, 19 mph84%48%
02:00+10°—19 mphwest wind, 19 mph86%44%
03:00+10°—18 mphwest wind, 18 mph87%34%
04:00+10°—17 mphwest wind, 17 mph88%23%
05:00+9°—16 mphwest wind, 16 mph88%12%
06:00+9°—16 mphwest wind, 16 mph88%3%
07:00+10°—15 mphwest wind, 15 mph87%0%
08:00+10°—15 mphwest wind, 15 mph85%3%
09:00+11°—15 mphwest wind, 15 mph81%11%
10:00+13°—15 mphwest wind, 15 mph76%22%
11:00+13°0.1 mm12 mphsouthwest wind, 12 mph76%50%
12:00+13°0.1 mm9 mphsouth wind, 9 mph78%72%
13:00+13°0.2 mm6 mphsoutheast wind, 6 mph83%88%
14:00+12°0.9 mm4 mphnortheast wind, 4 mph89%100%
15:00+12°0.9 mm5 mphnortheast wind, 5 mph90%100%
16:00+11°0.9 mm6 mphnortheast wind, 6 mph91%100%
17:00+11°0.9 mm7 mphnortheast wind, 7 mph93%100%
18:00+11°0.9 mm7 mphnortheast wind, 7 mph95%100%
19:00+10°0.9 mm8 mphnortheast wind, 8 mph95%100%
20:00+10°0.2 mm10 mphnortheast wind, 10 mph96%100%
21:00+10°0.2 mm11 mphnortheast wind, 11 mph96%100%
22:00+10°0.2 mm13 mphnortheast wind, 13 mph96%100%
23:00+10°0.2 mm15 mphnortheast wind, 15 mph95%100%
+13°+11°+9°
Weather throughout the day
0:006:0012:0018:0023:00

Sun and moon

Tuesday, September 8
The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
DaylightMoon above the horizon
Sunrise
06:28
Sunset
19:46
Day length
13 h 18 min
Sunshine hours
0 min
UV index
2
low
Moon
Waning crescent
Moonrise
02:16
Moonset
19:03

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

+11% in the windowTuesday, September 8
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Minor01:46–02:46Moonrise
  • Major09:54–11:54Moon overhead
  • Minor18:33–19:33Moonset
  • Major22:21–00:00Moon 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?