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United Kingdom / Cardiff / Brown trout

Brown trout bite in Cardiff

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

Brown trout bite forecast in Cardiff today

Best fishing days for the next week

  1. WednesdaySeptember 2weather-based forecast
    56/100medium activity

    Drizzle: 16–20 °C

    Best fishing time: 19:00–22:00

  2. ThursdaySeptember 3weather-based forecast
    54/100medium activity

    Cloudy: 18–21 °C

    Best fishing time: 05:00–08:00

  3. SundaySeptember 6weather-based forecast
    54/100medium activity

    Partly cloudy: 17–23 °C

    Best fishing time: 06:00–09:00

How to catch Brown trout

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

Read the guide →

Other fish in Cardiff

  • Carp3 catches

Brown trout bite calendar

Wednesday, September 2

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 19:00–22:00 (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

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.

Why this forecast

The computed water temperature is around 17 °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 °C17 °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 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 · 102023:00 · 1018 hPa

September is an average month for Brown trout here.

JFMAMJJASOND

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

2 SepWednesday, September 2
+18°

Drizzle · feels like +18°

Low / high
+16°…+20°
Precipitation
0.1 mm
Wind
11 mph SW
Cloud cover
100%
Humidity
91%
Pressure
1017 hPa
00:00+16°0.2 mm5 mphsouthwest wind, 5 mph89%100%
01:00+16°0.6 mm5 mphsouthwest wind, 5 mph93%100%
02:00+16°1.5 mm6 mphsouthwest wind, 6 mph92%100%
03:00+16°—7 mphsouthwest wind, 7 mph91%100%
04:00+16°—6 mphsouthwest wind, 6 mph92%100%
05:00+16°—4 mphsouthwest wind, 4 mph92%100%
06:00+16°—4 mphsouthwest wind, 4 mph88%98%
07:00+16°—6 mphsouth wind, 6 mph89%84%
08:00+17°—7 mphsouth wind, 7 mph88%100%
09:00+16°0.4 mm8 mphsouth wind, 8 mph92%100%
10:00+17°0.5 mm7 mphsouth wind, 7 mph93%100%
11:00+17°0.4 mm10 mphsouthwest wind, 10 mph94%100%
12:00+18°0.1 mm11 mphsouthwest wind, 11 mph91%100%
13:00+19°—11 mphsouthwest wind, 11 mph88%99%
14:00+20°—13 mphsouthwest wind, 13 mph85%84%
15:00+20°—16 mphsouthwest wind, 16 mph84%100%
16:00+19°0.1 mm15 mphwest wind, 15 mph88%91%
17:00+20°—15 mphwest wind, 15 mph86%83%
18:00+19°0.3 mm14 mphsouthwest wind, 14 mph89%100%
19:00+19°—13 mphsouthwest wind, 13 mph91%98%
20:00+18°—13 mphwest wind, 13 mph86%95%
21:00+18°—10 mphwest wind, 10 mph89%69%
22:00+18°0.2 mm12 mphwest wind, 12 mph94%66%
23:00+18°—10 mphsouthwest wind, 10 mph92%100%
+20°+18°+16°
Weather throughout the day
0:006:0012:0018:0023:00

Sun and moon

Wednesday, September 2
The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
DaylightMoon above the horizon
Sunrise
06:26
Sunset
19:57
Day length
13 h 31 min
Sunshine hours
49 min
UV index
1
low
Moon
Waning gibbous
Moonrise
21:25
Moonset
13:13

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 windowWednesday, September 2
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major03:57–05:57Moon overhead
  • Minor12:43–13:43Moonset
  • Major16:24–18:24Moon underfoot
  • Minor20:55–21:55Moonrise

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?