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United Kingdom / County Londonderry / Brown trout

Brown trout bite in County Londonderry

Brown trout lives in County Londonderry. Today's bite forecast, a day-by-day and hour-by-hour activity calendar, best time and baits.

Brown trout bite forecast in County Londonderry today

Best fishing days for the next week

  1. ThursdaySeptember 10weather-based forecast
    74/100high activity

    Cloudy: 11–15 °C

    Best fishing time: 19:00–22:00

  2. MondaySeptember 7weather-based forecast
    70/100high activity

    Cloudy: 12–15 °C

    Best fishing time: 19:00–22:00

  3. SundaySeptember 6weather-based forecast
    67/100high activity

    Cloudy: 15–19 °C

    Best fishing time: 19:00–22:00

How to catch Brown trout

Tackle, baits, spots and seasons — a full guide to catching Brown trout.

Read the guide →

Brown trout bite calendar

Saturday, September 5

Aug 31 – Sep 6
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?

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 — 06:00–08:00 (dawn bite) and 20:00–21:00 (dusk bite).

Tactics

Work the cover — snags, weed edges, hole entrances; retrieve the lure with pauses.

Lures

The water's turning murky — go with bright, noisy lures: spinner or small crankbait.

Gear

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

Summary

An average day — best chances during peak windows.

Why this forecast

The computed water temperature is around 14 °C — inside the 6–17 °C comfort range for Brown trout, so baseline activity is high.

Computed water temperature by month; the green band is the 6–17 °C comfort rangecomfort 6–17 °C14 °C
JFMAMJJASOND

Brown trout 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 Brown trout feeds0:0012:0024:00

Pressure is rising 3 hPa over the day — the bite usually settles down after a rise.

Pressure through the day, 3 hPa change
00:00 · 101623:00 · 1019 hPa

September is an active season for Brown trout here.

JFMAMJJASOND

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

5 SepSaturday, September 5
+15°

Cloudy · feels like +13°

Low / high
+11°…+17°
Precipitation
0.0 mm
Wind
8 mph W
Cloud cover
98%
Humidity
71%
Pressure
1022 hPa
00:00+12°—7 mphwest wind, 7 mph83%95%
01:00+12°0.2 mm7 mphwest wind, 7 mph85%97%
02:00+12°0.2 mm6 mphnorthwest wind, 6 mph89%100%
03:00+11°—8 mphwest wind, 8 mph89%26%
04:00+11°—6 mphwest wind, 6 mph90%82%
05:00+11°—7 mphsouthwest wind, 7 mph91%49%
06:00+11°—5 mphsouthwest wind, 5 mph91%100%
07:00+11°—6 mphsouthwest wind, 6 mph92%66%
08:00+12°—6 mphsouthwest wind, 6 mph88%67%
09:00+13°—9 mphwest wind, 9 mph84%7%
10:00+14°—9 mphwest wind, 9 mph79%22%
11:00+13°—9 mphwest wind, 9 mph79%97%
12:00+15°—8 mphwest wind, 8 mph71%98%
13:00+15°—9 mphsouthwest wind, 9 mph74%100%
14:00+15°—8 mphwest wind, 8 mph71%66%
15:00+16°—7 mphsouthwest wind, 7 mph63%94%
16:00+17°—7 mphsouthwest wind, 7 mph59%70%
17:00+17°—6 mphsouthwest wind, 6 mph59%100%
18:00+16°—5 mphsouthwest wind, 5 mph61%68%
19:00+16°—5 mphsouth wind, 5 mph67%100%
20:00+15°—5 mphsoutheast wind, 5 mph75%100%
21:00+15°0.1 mm7 mphsouth wind, 7 mph74%100%
22:00+15°—8 mphsouth wind, 8 mph75%100%
23:00+15°—7 mphsouth wind, 7 mph73%100%
+17°+14°+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
06:41
Sunset
20:10
Day length
13 h 29 min
Sunshine hours
6 h 50 min
UV index
1
low
Moon
Waning crescent
Moonrise
23:37
Moonset
17:48

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 windowSaturday, September 5
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major07:10–09:10Moon overhead
  • Minor17:18–18:18Moonset
  • Major19:41–21:41Moon underfoot
  • Minor23:07–00:00Moonrise

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?