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Where to fish

  • Forecast
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Forecast
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© 2026·AI-powered bite forecast
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United Kingdom / Somerset / Lake Portishead Quays Marina

Bite forecast: Lake Portishead Quays Marina

  • 7 ha
Loading map…

Best fishing days for the next week

  1. WednesdaySeptember 2weather-based forecast
    59/100medium activity

    Cloudy: 15–22 °C

  2. SundaySeptember 6weather-based forecast
    55/100medium activity

    Partly cloudy: 15–22 °C

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

    Cloudy: 18–24 °C

Lake Portishead Quays Marina (Somerset) — a spot well known among anglers. About 7 ha in area. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.

Loading map…

Catches

Recorded 1 catch here. Most commonly caught: Flounder. Peak season: May.

  • Flounder
    Portishead Quays Marina
    11 °C9 mph
    May 01, 2022, 12:46 PM

Bite calendar

Aug 31 – Sep 6
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?
DaceEuropean eelPikeRuffeZanderPerchWhitefishBreamCarpRainbow troutRoachBrown troutWels catfishBleakChubCrucian carpIdeWhite 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 17 °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 °C17 °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 6 hPa over the day — fish are usually more active ahead of a weather change.

Pressure through the day, 6 hPa change
00:00 · 102123:00 · 1015 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

6 SepSunday, September 6
+22°

Partly cloudy · feels like +21°

Low / high
+15°…+22°
Precipitation
0.0 mm
Wind
12 mph SW
Cloud cover
61%
Humidity
74%
Pressure
1015 hPa
00:00+17°—6 mphsoutheast wind, 6 mph80%69%
01:00+16°—6 mphsoutheast wind, 6 mph84%53%
02:00+16°—6 mphsoutheast wind, 6 mph87%39%
03:00+16°—5 mphsoutheast wind, 5 mph89%26%
04:00+16°—5 mphsoutheast wind, 5 mph91%16%
05:00+15°—5 mphsoutheast wind, 5 mph93%11%
06:00+15°—5 mphsoutheast wind, 5 mph94%10%
07:00+15°—5 mphsoutheast wind, 5 mph94%9%
08:00+17°—5 mphsoutheast wind, 5 mph91%6%
09:00+19°—6 mphsouth wind, 6 mph86%5%
10:00+20°—7 mphsouth wind, 7 mph82%11%
11:00+21°—9 mphsouthwest wind, 9 mph78%32%
12:00+22°—12 mphsouthwest wind, 12 mph74%61%
13:00+22°—14 mphsouthwest wind, 14 mph71%83%
14:00+22°—15 mphsouthwest wind, 15 mph69%92%
15:00+22°—17 mphsouthwest wind, 17 mph69%94%
16:00+22°—17 mphsouthwest wind, 17 mph70%92%
17:00+22°—17 mphsouthwest wind, 17 mph73%84%
18:00+21°—16 mphsouthwest wind, 16 mph78%72%
19:00+21°—15 mphsouthwest wind, 15 mph82%67%
20:00+20°0.1 mm15 mphsouthwest wind, 15 mph84%76%
21:00+19°0.1 mm16 mphsouthwest wind, 16 mph84%92%
22:00+19°0.1 mm16 mphsouthwest wind, 16 mph84%100%
23:00+18°0.1 mm16 mphwest wind, 16 mph83%92%
+22°+19°+15°
Weather throughout the day
0:006:0012:0018:0023:00

Sun and moon

Sunday, September 6
The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
DaylightMoon above the horizon
Sunrise
06:32
Sunset
19:46
Day length
13 h 14 min
Sunshine hours
12 h 24 min
UV index
4
moderate
Moon
Waning crescent
Moonrise
—
Moonset
17:46

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 windowSunday, September 6
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major07:56–09:56Moon overhead
  • Minor17:16–18:16Moonset
  • Major20:27–22:27Moon 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?

Nearby rivers

  • Land Yeo3 mi
  • Ten Feet Rhyne5 mi
  • River Kenn7 mi
  • Clevedon Pill7 mi
  • River Severn7 mi

Nearby water bodies

  • LakePortishead Lake0.6 mi
  • LakeIsland Pool0.8 mi
  • LakeRoyal Portbury Dock2 mi
  • LakeRoyal Edward Dock2 mi
  • LakeAvonmouth Dock2 mi
  • LakeHam Green Lake4 mi
  • ReservoirBackwell Lake5 mi
  • LakeClevedon Marine Lake6 mi
  • LakeCumberland Basin7 mi
  • LakeHenleaze Lake7 mi