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Where to fish

  • Forecast
  • Catches

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© 2026·AI-powered bite forecast
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Ireland / County Wicklow / River Redcross

Bite forecast: River Redcross

  • length 12 km
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Best fishing days for the next week

  1. ThursdaySeptember 3weather-based forecast
    57/100medium activity

    Cloudy: 13–18 °C

  2. SaturdaySeptember 5weather-based forecast
    57/100medium activity

    Cloudy: 8–14 °C

  3. SundaySeptember 6weather-based forecast
    56/100medium activity

    Drizzle: 15–18 °C

Nearby towns

  • Rathdrum3 mi
  • Arklow4 mi
  • Aughrim7 mi

River Redcross (County Wicklow) — a popular fishing spot. About 12 km long. Close by — Rathdrum, Arklow and Aughrim. 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…

Bite calendar

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

Atlantic salmon

6/10 · Fair

Hourly activity

0:006:0012:0018:0023:00
Bite activity:highmediumlow

The bite is strong — fish are active. A thunderstorm is possible: activity rises before the front and drops after.

Peak bite hours

Best time — 20:00–22:00 (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: salmon spoon or salmon fly.

Gear

No special gear needed — seasonal clothing will do. A thunderstorm is possible — bring a rain jacket, and pack up at the first rumble of thunder.

Summary

Worth going — it's a productive day.

How this forecast is calculated

Why this forecast

The computed water temperature is around 14 °C — inside the 4–14 °C comfort range for Atlantic salmon, so baseline activity is high.

Computed water temperature by month; the green band is the 4–14 °C comfort rangecomfort 4–14 °C14 °C
JFMAMJJASOND

Atlantic salmon 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 Atlantic salmon feeds0:0012:0024:00

Pressure is dropping 4 hPa over the day — fish are usually more active ahead of a weather change.

Pressure through the day, 4 hPa change
00:00 · 101723:00 · 1013 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 active season for Atlantic salmon here.

JFMAMJJASOND

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

2 SepWednesday, September 2
+16°

Drizzle · feels like +16°

Low / high
+12°…+19°
Precipitation
0.7 mm
Wind
8 mph SW
Cloud cover
100%
Humidity
98%
Pressure
1012 hPa
00:00+13°—6 mphsouth wind, 6 mph93%100%
01:00+12°—7 mphsouthwest wind, 7 mph95%100%
02:00+12°0.7 mm5 mphsouthwest wind, 5 mph98%100%
03:00+12°3.0 mm5 mphsouth wind, 5 mph99%100%
04:00+13°3.0 mm8 mphsouth wind, 8 mph99%100%
05:00+13°3.3 mm8 mphsouth wind, 8 mph99%100%
06:00+13°10.5 mm6 mphsouth wind, 6 mph99%100%
07:00+14°5.5 mm9 mphsouthwest wind, 9 mph100%100%
08:00+15°—12 mphsouthwest wind, 12 mph98%100%
09:00+15°—11 mphsouthwest wind, 11 mph96%95%
10:00+15°0.1 mm10 mphsouthwest wind, 10 mph98%100%
11:00+16°0.1 mm11 mphsouthwest wind, 11 mph98%99%
12:00+16°0.7 mm8 mphsouthwest wind, 8 mph98%100%
13:00+17°0.1 mm9 mphsouthwest wind, 9 mph94%98%
14:00+17°0.6 mm8 mphsouthwest wind, 8 mph94%100%
15:00+19°0.4 mm7 mphsouthwest wind, 7 mph86%92%
16:00+18°—10 mphsouthwest wind, 10 mph83%98%
17:00+18°0.1 mm7 mphwest wind, 7 mph82%82%
18:00+18°—6 mphsouthwest wind, 6 mph81%91%
19:00+17°—6 mphsouthwest wind, 6 mph83%98%
20:00+17°—7 mphsouthwest wind, 7 mph85%100%
21:00+16°—10 mphsouthwest wind, 10 mph90%100%
22:00+16°—10 mphsouthwest wind, 10 mph96%100%
23:00+16°—7 mphsouthwest wind, 7 mph90%92%
+19°+15°+12°
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
06:36
Sunset
20:11
Day length
13 h 35 min
Sunshine hours
2 h 37 min
UV index
1
low
Moon
Waning gibbous
Moonrise
21:28
Moonset
13:32

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
  • Major04:08–06:08Moon overhead
  • Minor13:02–14:02Moonset
  • Major16:35–18:35Moon underfoot
  • Minor20:58–21:58Moonrise

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

  • Potter's River3 mi
  • Avoca5 mi
  • Goldmine7 mi
  • Aughrim7 mi

Nearby water bodies

  • PondArklow Duckpond5 mi
  • ReservoirWicklow Reservoir7 mi
  • LakeNational Disabled Angling Park9 mi
  • LakeBroadlough Estuary9 mi