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Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
Forecast
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© 2026·AI-powered bite forecast
0.1.0+2161 · b4069346

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United Kingdom / Hertfordshire / Batchworth Lake

Bite forecast: Batchworth Lake

  • 8 ha
Loading map…

Best fishing days for the next week

  1. WednesdaySeptember 2weather-based forecast
    60/100high activity

    Cloudy: 15–21 °C

  2. SundaySeptember 6weather-based forecast
    58/100medium activity

    Partly cloudy: 16–25 °C

  3. TuesdaySeptember 8weather-based forecast
    58/100medium activity

    Cloudy: 14–17 °C

Nearby towns

  • St Albans10 mi

Batchworth Lake (Hertfordshire) — a spot well known among anglers. About 8 ha in area. The town of St Albans 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 45 catches here. Most commonly caught: Roach, Tench, Bream. Peak season: March–October.

  • Tench
    Batchworth Lake
    21 °C11 mph
    Jul 14, 2021, 10:49 AM
  • Bream
    River Colne
    19 °C7 mph
    Jul 08, 2021, 11:53 AM
  • Tench
    River Colne
    19 °C7 mph
    Jul 08, 2021, 11:11 AM
  • Tench
    River Colne
    17 °C7 mph
    May 28, 2021, 3:31 PM
  • Pike
    Batchworth Lake
    13 °C13 mph
    Feb 24, 2021, 3:20 PM
  • Pike
    River Colne
    7 °C13 mph
    Dec 26, 2020, 11:11 AM
  • Roach
    River Colne
    14 °C13 mph
    Oct 22, 2020, 4:47 PM
  • Roach
    River Colne
    14 °C13 mph
    Oct 22, 2020, 4:47 PM

BiteGuide·From anglers’ reports

What actually worked on this water

Based on 45 verified catchesPeriod: 2018–2021

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

0918
1816116322111
RoachTenchBreamPerchChubDacePikeRuddSilver carpWhite bream
By fish species
ValueCatchesShare
Roach1840%
Tench1636%
Bream1124%
Perch613%
Chub37%
Dace24%
Pike24%
Rudd12%
Silver carp12%
White bream12%

By month

vertical axis — number of catches

059
1273899411
FebMarMayJunJulAugSepOctNovDec
By month
ValueCatchesShare
Feb12%
Mar24%
May716%
Jun37%
Jul818%
Aug920%
Sep920%
Oct49%
Nov12%
Dec12%

By time of day

31 catches have this data · vertical axis — number of catches

047
474244411
111213141516171920
By time of day
ValueCatchesShare
11:00413%
12:00723%
13:00413%
14:0026%
15:00413%
16:00413%
17:00413%
19:0013%
20:0013%

Air temperature, °C

vertical axis — number of catches

0917
2121714
5101520
Air temperature, °C
ValueCatchesShare
5–9 °C24%
10–14 °C1227%
15–19 °C1738%
20–24 °C1431%

Pressure, mmHg

vertical axis — number of catches

0714
2101114431
745750755760765770775
Pressure, mmHg
ValueCatchesShare
745–749 mmHg24%
750–754 mmHg1022%
755–759 mmHg1124%
760–764 mmHg1431%
765–769 mmHg49%
770–774 mmHg37%
775–779 mmHg12%

Wind direction

vertical axis — number of catches

0816
424161693
NNEESESSWWNW
Wind direction
ValueCatchesShare
N49%
NE24%
E49%
SE12%
S613%
SW1636%
W920%
NW37%

Wind speed, mph

vertical axis — number of catches

0815
15141321
49131822
Wind speed, mph
ValueCatchesShare
4–7 mph1533%
9–11 mph1431%
13–16 mph1329%
18–20 mph24%
22–25 mph12%

Nearby rivers

  • River Chess2 mi
  • Grand Union Canal2 mi

Nearby water bodies

  • LakeBury Lake0.3 mi
  • LakeElms Lake0.6 mi
  • LakeStocker's Lake0.7 mi
  • LakeCressacres Lake0.8 mi
  • LakeCroxley Lake0.8 mi
  • LakeBroadacres Lake0.9 mi
  • LakeInns Lake0.9 mi
  • LakeSpringwell Lake1 mi
  • LakeTolpits Lake1 mi
  • LakeClubhouse Lake2 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 eelPikeZanderPerchRuffeWhitefishBreamCarpWels catfishRainbow troutRoachBrown troutCrucian carpBleakChubIdeWhite breamRuddTench

Bleak

4/10 · Weak

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 — 10:00–15:00 (daytime activity).

Tactics

Chum one spot near a drop-off and wait for fish to arrive — don't chase them.

Lures

Today's bait — maggot or small hook with dough bait. In cold or murky water, add scent to your chum.

Gear

No special gear needed — seasonal clothing will do. Rain is expected — don't forget a rain jacket or a waterproof shell.

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 — inside the 14–26 °C comfort range for Bleak, so baseline activity is high.

Computed water temperature by month; the green band is the 14–26 °C comfort rangecomfort 14–26 °C16 °C
JFMAMJJASOND

Bleak feeds by day — between sunrise and sunset; their times are in the sun-and-moon card above.

The day: daylight hours and when Bleak feeds0:0012:0024:00

Pressure is dropping 24 hPa over the day — fish are usually more active ahead of a weather change.

Pressure through the day, 24 hPa change
00:00 · 101923:00 · 995 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 Bleak: 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

8 SepTuesday, September 8
+17°

Cloudy · feels like +14°

Low / high
+14°…+17°
Precipitation
0.0 mm
Wind
12 mph WSW
Cloud cover
100%
Humidity
62%
Pressure
1015 hPa
00:00+17°—12 mphwest wind, 12 mph75%100%
01:00+16°—11 mphwest wind, 11 mph79%100%
02:00+16°0.1 mm11 mphwest wind, 11 mph82%100%
03:00+15°0.1 mm11 mphwest wind, 11 mph84%99%
04:00+15°0.1 mm10 mphwest wind, 10 mph86%98%
05:00+14°0.1 mm10 mphwest wind, 10 mph87%96%
06:00+14°0.1 mm9 mphwest wind, 9 mph87%95%
07:00+14°0.1 mm9 mphwest wind, 9 mph85%95%
08:00+15°—9 mphwest wind, 9 mph81%95%
09:00+15°—9 mphwest wind, 9 mph75%96%
10:00+16°—10 mphwest wind, 10 mph68%97%
11:00+16°—11 mphwest wind, 11 mph63%98%
12:00+17°—12 mphsouthwest wind, 12 mph62%100%
13:00+17°—14 mphsouthwest wind, 14 mph64%100%
14:00+17°1.1 mm16 mphsouthwest wind, 16 mph71%100%
15:00+17°1.1 mm17 mphsouthwest wind, 17 mph75%100%
16:00+16°1.1 mm18 mphsouthwest wind, 18 mph81%100%
17:00+16°1.1 mm19 mphsouthwest wind, 19 mph86%100%
18:00+15°1.1 mm20 mphsouthwest wind, 20 mph92%100%
19:00+15°1.1 mm21 mphsouthwest wind, 21 mph96%100%
20:00+15°0.4 mm21 mphsouthwest wind, 21 mph98%100%
21:00+16°0.4 mm21 mphsouthwest wind, 21 mph99%100%
22:00+16°0.4 mm21 mphsouthwest wind, 21 mph99%100%
23:00+16°0.4 mm21 mphsouthwest wind, 21 mph98%100%
+17°+16°+14°
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
06:24
Sunset
19:31
Day length
13 h 7 min
Sunshine hours
29 min
UV index
0
low
Moon
Waning crescent
Moonrise
02:26
Moonset
18:34

The day is 4 min shorter than yesterday.

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

Solunar feeding periods

+14% in the windowTuesday, September 8
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Minor01:56–02:56Moonrise
  • Major09:41–11:41Moon overhead
  • Minor18:04–19:04Moonset
  • Major22:08–00:00Moon 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?