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© 2026·AI-powered bite forecast
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United Kingdom / County Down / Ben Crom Reservoir

Bite forecast: Ben Crom Reservoir

  • 36 ha
Loading map…

Best fishing days for the next week

  1. WednesdaySeptember 9weather-based forecast
    68/100high activity

    Partly cloudy: 8–14 °C

  2. SundaySeptember 6weather-based forecast
    64/100high activity

    Cloudy: 16–19 °C

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

    Cloudy: 11–16 °C

Ben Crom Reservoir (County Down) — a popular fishing spot. About 36 ha in area. Nearby towns: Castlewellan and Rathfriland. 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

  • Castlewellan6 mi
  • Rathfriland9 mi

Nearby rivers

  • Annalong River2 mi
  • Shimna River4 mi
  • Spence's River4 mi
  • Muddock River4 mi
  • Bloody Bridge River4 mi
  • Tullybrannigan River4 mi
  • Rowan Tree River4 mi
  • Windy Gap or Pigeon Rock River5 mi
  • Rocky Water5 mi
  • Kinnahalla River5 mi

Nearby water bodies

  • LakeBlue Lough0.9 mi
  • LakeBinian Lough1 mi
  • LakeLough Shannagh2 mi
  • ReservoirSilent Valley Reservoir2 mi
  • ReservoirFofanny Reservoir3 mi
  • ReservoirSpelga Reservoir3 mi
  • ReservoirLough Island Reavy5 mi
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?
DaceEuropean eelPikeWhitefishRuffeZanderBreamCarpWels catfishPerchRainbow troutBrown troutIdeBleakChubCrucian carpRoachWhite 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. Weather is steady, with no sharp swings — fish behave predictably.

Peak bite hours

Best time — 11:00–16:00 (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 15 °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 °C15 °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 flat: it moves no more than 1 hPa over the day, so the weather isn't shifting today's bite.

Pressure through the day, 1 hPa change
00:00 · 101023:00 · 1009 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 average month for Bleak here.

JFMAMJJASOND

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

3 SepThursday, September 3
+18°

Cloudy · feels like +17°

Low / high
+13°…+18°
Precipitation
0.0 mm
Wind
10 mph SW
Cloud cover
100%
Humidity
71%
Pressure
1012 hPa
00:00+17°—10 mphsouthwest wind, 10 mph87%100%
01:00+17°—11 mphsouthwest wind, 11 mph87%89%
02:00+16°—9 mphwest wind, 9 mph89%100%
03:00+15°—6 mphsouthwest wind, 6 mph90%20%
04:00+15°—8 mphsouthwest wind, 8 mph86%95%
05:00+15°—7 mphsouthwest wind, 7 mph90%58%
06:00+14°—6 mphsouthwest wind, 6 mph93%48%
07:00+13°—6 mphsouthwest wind, 6 mph92%5%
08:00+15°—7 mphsouthwest wind, 7 mph88%1%
09:00+16°—10 mphsouthwest wind, 10 mph81%1%
10:00+17°—12 mphsouthwest wind, 12 mph74%14%
11:00+18°—13 mphsouthwest wind, 13 mph68%50%
12:00+18°—10 mphsouthwest wind, 10 mph71%100%
13:00+18°—11 mphsouthwest wind, 11 mph73%100%
14:00+17°0.1 mm10 mphsouth wind, 10 mph89%100%
15:00+17°0.7 mm17 mphsouthwest wind, 17 mph84%100%
16:00+17°0.8 mm13 mphsouthwest wind, 13 mph86%100%
17:00+17°0.2 mm13 mphsouthwest wind, 13 mph83%100%
18:00+16°—14 mphsouthwest wind, 14 mph80%100%
19:00+15°—11 mphsouthwest wind, 11 mph82%100%
20:00+15°—11 mphsouthwest wind, 11 mph84%100%
21:00+14°0.2 mm11 mphsouthwest wind, 11 mph85%100%
22:00+13°—8 mphsouthwest wind, 8 mph88%100%
23:00+14°—8 mphsouthwest wind, 8 mph85%100%
+18°+16°+13°
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
06:34
Sunset
20:09
Day length
13 h 35 min
Sunshine hours
4 h
UV index
2
low
Moon
Last quarter
Moonrise
21:50
Moonset
15:08

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

+13% in the windowThursday, September 3
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major05:04–07:04Moon overhead
  • Minor14:38–15:38Moonset
  • Major17:33–19:33Moon underfoot
  • Minor21:20–22:20Moonrise

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?