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Forecast
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United States / Wisconsin / Sea Porte Des Morte Passage

Bite forecast: Sea Porte Des Morte Passage

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Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    79/100high activity

    Cloudy: 52–61 °F

  2. SundaySeptember 6weather-based forecast
    72/100high activity

    Cloudy: 61–66 °F

  3. ThursdaySeptember 3weather-based forecast
    58/100medium activity

    Cloudy: 63–77 °F

Sea Porte Des Morte Passage (Wisconsin) — one of the area's fishing spots. Salt water, not fresh — so this page carries its own marine bite forecast. 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 rivers

  • Mink River5 mi

Nearby water bodies

  • SeaPorte Des Morte Passage0 mi
  • LakeEurope Lake2 mi
  • SeaWest Channel4 mi
  • SeaWest Channel4 mi
  • LakeLittle Lake9 mi
Loading map…

Catches

Recorded 2 catches here. Most commonly caught: Walleye, Smallmouth bass. Peak season: September–October.

  • Walleye
    Wisconsin
    64 °F13 mph
    Sep 02, 2017, 12:40 PM
  • Smallmouth bass
    Wisconsin
    Oct 09, 2016, 1:14 PM

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?
Coho salmonSteelheadChinook salmon

Coho salmon

7/10 · Good

Hourly activity

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

The bite is strong — fish are active. Weather is steady, with no sharp swings — fish behave predictably.

Peak bite hours

Best time — 06:00–07:00 (dawn bite) and 19:00–21:00 (dusk bite).

Tactics

Look for structure — reefs, flats, channel edges; work them slowly near the bottom.

Lures

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

Gear

It's a hot day — a hat, sunglasses, and plenty of water are a must. Rain is expected — don't forget a rain jacket or a waterproof shell.

Summary

Worth going — it's a productive day.

How this forecast is calculated

Why this forecast

The computed water temperature is around 68 °F — warmer than the 43–59 °F comfort range for Coho salmon: in the heat it drops deeper and feeds less often.

Computed water temperature by month; the green band is the 43–59 °F comfort rangecomfort 43–59 °F68 °F
JFMAMJJASOND

Coho 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 Coho salmon feeds0:0012:0024:00

Pressure is flat: it moves no more than 0.03 inHg over the day, so the weather isn't shifting today's bite.

Pressure through the day, 0.03 inHg change
00:00 · 29.8823:00 · 29.90 inHg

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 peak season for Coho salmon here.

JFMAMJJASOND

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

Water

Wave
1.0 ft
Period
4 s

Open-Meteo Marine model, grid cell 3.9 mi from the waterbody. Values are daily means.

2 SepWednesday, September 2
+77°

Clear · feels like +80°

Low / high
+62°…+83°
Precipitation
0.00 in
Wind
4 mph WNW
Cloud cover
2%
Humidity
57%
Pressure
29.90 inHg
00:00+68°—5 mphnorthwest wind, 5 mph50%94%
01:00+67°—5 mphnorth wind, 5 mph55%100%
02:00+67°—3 mphnortheast wind, 3 mph57%100%
03:00+65°—2 mphnortheast wind, 2 mph58%89%
04:00+65°—3 mpheast wind, 3 mph57%100%
05:00+64°—3 mphsouthwest wind, 3 mph68%73%
06:00+63°—5 mphsouthwest wind, 5 mph76%100%
07:00+62°0.06 in9 mphsouth wind, 9 mph87%100%
08:00+62°—2 mphsoutheast wind, 2 mph90%93%
09:00+65°—6 mphsouthwest wind, 6 mph87%100%
10:00+69°—6 mphwest wind, 6 mph80%100%
11:00+73°—5 mphnorthwest wind, 5 mph68%100%
12:00+77°—4 mphnorthwest wind, 4 mph57%2%
13:00+79°—4 mphwest wind, 4 mph49%25%
14:00+81°—4 mphsouthwest wind, 4 mph43%8%
15:00+82°—6 mphsouthwest wind, 6 mph39%25%
16:00+83°—6 mphsouthwest wind, 6 mph37%5%
17:00+83°—6 mphsouthwest wind, 6 mph38%2%
18:00+82°—7 mphsouthwest wind, 7 mph41%3%
19:00+79°—5 mphsouthwest wind, 5 mph45%0%
20:00+74°—4 mphsouthwest wind, 4 mph53%0%
21:00+71°—3 mphwest wind, 3 mph58%0%
22:00+71°—7 mphnortheast wind, 7 mph50%35%
23:00+68°—5 mphnortheast wind, 5 mph57%76%
+83°+72°+62°
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
06:21
Sunset
19:34
Day length
13 h 13 min
Sunshine hours
10 h
UV index
5
moderate
Moon
Waning gibbous
Moonrise
21:37
Moonset
12:39

The day is 3 min shorter than yesterday.

Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.

Solunar feeding periods

+10% in the windowWednesday, September 2
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major03:44–05:44Moon overhead
  • Minor12:09–13:09Moonset
  • Major16:12–18:12Moon underfoot
  • Minor21:07–22:07Moonrise

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?