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© 2026·AI-powered bite forecast
0.1.0+2166 · bee8965a

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United States / Washington / Sultan River

Bite forecast: Sultan River

  • length 30 mi
  • Snohomish River Basin
Loading map…

Best fishing days for the next week

  1. ThursdaySeptember 10weather-based forecast
    66/100high activity

    Clear: 61–86 °F

  2. WednesdaySeptember 9weather-based forecast
    65/100high activity

    Clear: 61–90 °F

  3. SundaySeptember 6weather-based forecast
    61/100high activity

    Partly cloudy: 52–77 °F

Sultan River (Washington) — one of the area's fishing spots. About 49 km long. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days.

Nearby rivers

  • South Fork Sultan River4 mi
  • South Fork South Fork Sultan River4 mi

Nearby water bodies

  • LakeBald Mountain Lake3 mi
  • ReservoirSpada Lake3 mi
  • LakeShaw Lake3 mi
  • LakeIsland Lake3 mi
  • LakeEast Boardman Lake3 mi
  • LakeCutthroat Lakes3 mi
  • LakeClear Lake3 mi
  • LakeBoardman Lake3 mi
  • LakeLower Ashland Lake4 mi
  • LakeLake Evan4 mi
Loading map…

Bite calendar

7–Sep 13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?
Yellow perchSmallmouth bassWalleyeCoho salmonBlack crappieBrook troutCutthroat troutLake troutWhitefishBluegillChannel catfishLargemouth bassSteelheadRainbow troutChinook salmon

Black crappie

7/10 · Good

Hourly activity

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

The bite is strong — fish are active. Pressure is dropping — this usually boosts the bite.

Peak bite hours

Best time — 06:00–08:00 (dawn bite) and 19:00–21:00 (dusk bite).

Tactics

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

Lures

In clear water, natural colors work best: small jig or minnow bait.

Gear

It's a hot day — a hat, sunglasses, and plenty of water are a must.

Summary

Worth going — it's a productive day.

How this forecast is calculated

Why this forecast

The computed water temperature is around 70 °F — inside the 57–75 °F comfort range for Black crappie, so baseline activity is high.

Computed water temperature by month; the green band is the 57–75 °F comfort rangecomfort 57–75 °F70 °F
JFMAMJJASOND

Black crappie 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 Black crappie feeds0:0012:0024:00

Pressure is dropping 0.09 inHg over the day — fish are usually more active ahead of a weather change.

Pressure through the day, 0.09 inHg change
00:00 · 29.9423:00 · 29.84 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 an active season for Black crappie here.

JFMAMJJASOND

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

9 SepWednesday, September 9
+82°

Clear · feels like +79°

Low / high
+59°…+89°
Precipitation
0.00 in
Wind
5 mph NE
Cloud cover
0%
Humidity
21%
Pressure
29.88 inHg
00:00+63°—5 mphwest wind, 5 mph42%81%
01:00+62°—5 mphwest wind, 5 mph43%54%
02:00+61°—4 mphwest wind, 4 mph44%38%
03:00+60°—4 mphwest wind, 4 mph45%42%
04:00+59°—4 mphwest wind, 4 mph47%55%
05:00+59°—4 mphwest wind, 4 mph47%64%
06:00+60°—4 mphwest wind, 4 mph45%64%
07:00+62°—4 mphwest wind, 4 mph43%60%
08:00+65°—4 mphnorthwest wind, 4 mph39%51%
09:00+69°—3 mphnorthwest wind, 3 mph34%35%
10:00+74°—4 mphnorth wind, 4 mph29%15%
11:00+78°—4 mphnorth wind, 4 mph24%0%
12:00+82°—5 mphnortheast wind, 5 mph21%0%
13:00+85°—5 mphnortheast wind, 5 mph19%0%
14:00+87°—5 mphnortheast wind, 5 mph17%0%
15:00+89°—2 mpheast wind, 2 mph15%5%
16:00+89°—3 mphsouthwest wind, 3 mph14%13%
17:00+88°—6 mphsouthwest wind, 6 mph16%23%
18:00+83°—7 mphsouthwest wind, 7 mph22%41%
19:00+76°—7 mphsouthwest wind, 7 mph30%63%
20:00+71°—7 mphsouthwest wind, 7 mph37%71%
21:00+68°—7 mphwest wind, 7 mph41%55%
22:00+67°—6 mphwest wind, 6 mph44%26%
23:00+65°—6 mphwest wind, 6 mph47%4%
+89°+74°+59°
Weather throughout the day
0:006:0012:0018:0023:00

Sun and moon

Wednesday, September 9
The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
DaylightMoon above the horizon
Sunrise
06:31
Sunset
19:25
Day length
12 h 54 min
Sunshine hours
12 h 5 min
UV index
5
moderate
Moon
Waning crescent
Moonrise
04:44
Moonset
18:56

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

+13% in the windowWednesday, September 9
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Minor04:14–05:14Moonrise
  • Major10:59–12:59Moon overhead
  • Minor18:26–19:26Moonset

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?

Measured river conditions are available for Sultan River: current gauge height, streamflow, and water temperature when reported by the source.

Water

Gauge height
25.74 ft
Streamflow
109 ft³/s
Water temp · measured
52 °F
In the model
70 °F

USGS gauge SULTAN RIVER BELOW DIVERSION DAM NEAR SULTAN, WA, 5 mi away · measured 2026-09-04 06:15 · data source · provisional data, subject to revision