Fishing Forecast · Minnesota · Updated August 2026

Oslo Lake

Oslo Lake earns a null for water quality. This forecast reads its measured clarity, depth, and trophic state — with each species' biology, the sun and moon, and today's conditions — to call when the fish move on Oslo Lake and how to catch them.

36 ft
max depth: 2
fish species: 9.2 ft
water clarity: Natural lake
water body

Today · Sat Aug 8

★★★★★

The bite on Oslo Lake today. Sunrise 5:55 AM, sunset 8:38 PM.

Moon: Waning Crescent · 23%
Major windows: 7:42 PM–9:42 PM · 8:13 AM–10:13 AM

Best day · next 2 weeks

Thu Aug 13

★★★★★

New Moon moon (0%). Fish the major windows at 12:43 AM and 1:08 PM.

Fishing Forecast for Oslo Lake

A multi-factor outlook built from Oslo Lake's measured water quality — clarity, trophic state, depth, and water-body type — combined with each species' biology, seasonal patterns, and today's live weather. It flags spawn timing, where the fish hold, and the techniques that fit this lake's water, not just the moon.

Northern Pike

Game FishSummerSummer pattern

Fair

~69°F est.

Oslo Lake runs 9.2 ft of clarity — a balanced clarity where both natural finesse and moderate reaction baits produce.

Because Oslo Lake averages 9.2 ft of visibility (moderately clear), a balanced clarity where both natural finesse and moderate reaction baits produce.
Its mesotrophic nutrient level puts the summer weedline near 8–12 ft — that edge is the high-percentage zone to hold northern pike through the warm months.
With a max depth of 36 ft, Oslo Lake is deep enough to stratify in summer, so coldwater fish hold near the thermocline while warmwater fish stay above it.

Techniques for moderate water

spoons & spinnerbaitslarge soft swimbaits

Season-by-season on Oslo Lake

Season	Where	Structure	How
Spring	shallow 2–8 ft	weedy bays, marsh mouths, warming flats	spoons, spinnerbaits, big soft plastics
Summer	weed edges 6–18 ft; big pike deeper/cooler	cabbage/coontail edges, deep weedlines, cool water	large spoons, jerkbaits, dead-bait for big fish
Fall	variable 6–25 ft	deep weed edges, drop-offs, cisco/tullibee lakes	big swimbaits, sucker/dead-bait rigs — trophy season
Winter / Ice	6–20 ft	weed edges and flats	tip-ups with large shiners/suckers

Yellow Perch

PanfishSummerSummer pattern

Very Good

~69°F est.

Oslo Lake runs 9.2 ft of clarity — a balanced clarity where both natural finesse and moderate reaction baits produce.

Because Oslo Lake averages 9.2 ft of visibility (moderately clear), a balanced clarity where both natural finesse and moderate reaction baits produce.
Its mesotrophic nutrient level puts the summer weedline near 8–12 ft — that edge is the high-percentage zone to hold yellow perch through the warm months.
With a max depth of 36 ft, Oslo Lake is deep enough to stratify in summer, so coldwater fish hold near the thermocline while warmwater fish stay above it.

Techniques for moderate water

jig-and-minnow on flatssmall spoons

Season-by-season on Oslo Lake

Season	Where	Structure	How
Spring	shallow 4–12 ft	weedy/soft-bottom flats, spawning cover	small jigs, minnows, worms
Summer	mid 10–25 ft	sand and gravel flats, weed edges	drop-shot & jigs with minnows/plastics
Fall	mid-to-deep 15–35 ft	basin flats — schools pack up	jigging small spoons and minnows
Winter / Ice	15–35 ft	deep flats and basin	tungsten jigs and small spoons — a top ice target

The outlook is a transparent heuristic weighting of established angling factors, this lake's measured water quality, and live conditions — not a validated catch predictor. Water temperature is estimated from season and latitude unless a recent USGS gauge reading is available. Planning a meal? Check fish-consumption advisories for Oslo Lake. Always follow current state regulations.

14-Day Fishing Calendar

Plan the next two weeks on Oslo Lake. Anglers target northern pike, yellow perch on Oslo Lake.

Date	Rating	Moon	Sunrise	Sunset	Major Periods	Minor Periods
Sat, Aug 8	☆☆☆☆☆	Waning Crescent 23% lit	5:55 AM	8:38 PM	7:42 PM – 9:42 PM 8:13 AM – 10:13 AM	11:57 PM – 12:57 AM 5:34 PM – 6:34 PM
Sun, Aug 9	☆☆☆☆☆	Waning Crescent 14% lit	5:56 AM	8:36 PM	8:46 PM – 10:46 PM 9:18 AM – 11:18 AM	12:58 AM – 1:58 AM
Mon, Aug 10	½☆☆☆☆	Waning Crescent 8% lit	5:58 AM	8:35 PM	9:50 PM – 11:50 PM 10:21 AM – 12:21 PM	6:31 PM – 7:31 PM 2:14 AM – 3:14 AM
Tue, Aug 11	★½☆☆☆	Waning Crescent 3% lit	5:59 AM	8:33 PM	10:52 PM – 12:52 AM 11:21 AM – 1:21 PM	7:13 PM – 8:13 PM 3:40 AM – 4:40 AM
Wed, Aug 12	★★☆☆☆	New Moon 0% lit	6:00 AM	8:31 PM	11:50 PM – 1:50 AM 12:17 PM – 2:17 PM	7:44 PM – 8:44 PM 5:08 AM – 6:08 AM
Thu, Aug 13	★★½☆☆	New Moon 0% lit	6:02 AM	8:29 PM	12:43 AM – 2:43 AM 1:08 PM – 3:08 PM	8:07 PM – 9:07 PM 6:33 AM – 7:33 AM
Fri, Aug 14	★½☆☆☆	Waxing Crescent 2% lit	6:03 AM	8:28 PM	1:33 AM – 3:33 AM 1:56 PM – 3:56 PM	8:26 PM – 9:26 PM 7:55 AM – 8:55 AM
Sat, Aug 15	★☆☆☆☆	Waxing Crescent 6% lit	6:05 AM	8:26 PM	2:20 AM – 4:20 AM 2:42 PM – 4:42 PM	8:42 PM – 9:42 PM 9:13 AM – 10:13 AM
Sun, Aug 16	☆☆☆☆☆	Waxing Crescent 12% lit	6:06 AM	8:24 PM	3:05 AM – 5:05 AM 3:27 PM – 5:27 PM	8:57 PM – 9:57 PM 10:29 AM – 11:29 AM
Mon, Aug 17	★☆☆☆☆	Waxing Crescent 20% lit	6:07 AM	8:22 PM	3:50 AM – 5:50 AM 4:12 PM – 6:12 PM	9:13 PM – 10:13 PM 11:43 AM – 12:43 PM
Tue, Aug 18	★★☆☆☆	Waxing Crescent 29% lit	6:09 AM	8:20 PM	4:35 AM – 6:35 AM 4:58 PM – 6:58 PM	9:31 PM – 10:31 PM 12:57 PM – 1:57 PM
Wed, Aug 19	★★½☆☆	Waxing Crescent 39% lit	6:10 AM	8:19 PM	5:22 AM – 7:22 AM 5:46 PM – 7:46 PM	9:51 PM – 10:51 PM 2:08 PM – 3:08 PM
Thu, Aug 20	★½☆☆☆	First Quarter 50% lit	6:11 AM	8:17 PM	6:10 AM – 8:10 AM	10:18 PM – 11:18 PM 3:15 PM – 4:15 PM
Fri, Aug 21	☆☆☆☆☆	Waxing Gibbous 60% lit	6:13 AM	8:15 PM	6:35 PM – 8:35 PM 7:00 AM – 9:00 AM	10:51 PM – 11:51 PM 4:16 PM – 5:16 PM

Server-rendered 14-day calendar starting 2026-08-08. Live in your browser shortly.

Methodology

How this forecast works

A plain solunar table only knows the moon. The LakeQuality Fishing Forecast starts there and adds what actually decides where and how fish bite on Oslo Lake — factors we measure rather than guess:

Water clarity — Oslo Lake's Secchi reading flips the playbook between clear-water finesse and stained-water reaction baits, and sets the low-light bite window.
Trophic state & depth — nutrient level and max depth set the summer weedline and whether the lake stratifies, which tells you how deep to fish.
Water-body type — natural lake vs. reservoir changes the structure that holds fish.
Species & season — each species' spawn-temperature window and seasonal movements, matched to the lake's estimated water temperature.
Sun & moon — the solunar major/minor periods and dawn/dusk twilight in the calendar below.

The species outlook is a transparent heuristic weighting of these established factors, and it now also factors in today's live conditions — wind, cloud cover, and the barometric (pressure) trend, recomputed for the current day. It's not a validated catch predictor, and water temperature is still an estimate from season and latitude unless a recent USGS gauge reading exists. It's the analysis a solunar table can't do, grounded in Oslo Lake's real, measured water quality.

How to read the calendar

Major periods (≈2 hours) are centered on lunar transit (when the moon is highest in the sky) and lunar opposition (when the moon is directly underfoot). These are typically the strongest feeding windows.

Minor periods (≈1 hour) are centered on moonrise and moonset. They're secondary windows that often produce well — especially when they coincide with sunrise or sunset.

Day rating combines moon phase (peak near new and full moons, when lunar gravity is strongest) with the overlap of major periods and the dawn/dusk twilight. A 4–5 star day stacks all three.

At Oslo Lake (lat 48.52°N), the longest day of the year is around June 21 with 16h 8m of daylight. The shortest is around December 21 with 8h 18m. Plan summer trips around the early-morning bite (as early as 5:00 AM) and the long evening window before sunset.

Frequently asked questions

What makes this better than a solunar fishing table for Oslo Lake?

A solunar table only uses the moon. The LakeQuality Fishing Forecast adds Oslo Lake's measured water quality — its moderate clarity, trophic state, depth, and water-body type — matched to each species' spawn window and seasonal movements. That measured data drives where the fish hold and which techniques fit this lake's water, then the solunar calendar below adds the sun/moon timing. It's a transparent, multi-factor outlook, not a validated catch guarantee.

What is the best time to fish Oslo Lake today?

Today's solunar calendar for Oslo Lake (lat 48.52, lon -92.81) shows sunrise at 5:55 AM and sunset at 8:38 PM. The strongest fishing windows are around major solunar periods at 7:42 PM–9:42 PM and 8:13 AM–10:13 AM, plus the 30-90 minutes around dawn and dusk.

What does the moon phase mean for fishing Oslo Lake?

Solunar theory holds that fish activity peaks during major periods (when the moon is overhead or directly underfoot) and minor periods (moonrise and moonset). Fish feeding tends to intensify during the days surrounding the new moon and full moon, when lunar gravity is strongest. Today's moon at Oslo Lake is Waning Crescent (23% illuminated).

When are the longest and shortest days at Oslo Lake?

At Oslo Lake's latitude (48.52°N), the longest day of the year is around June 21 with about 16h 8m of daylight. The shortest day is around December 21 with about 8h 18m of daylight. Sunrise and sunset shift by roughly 6 hours between solstices.

Are major or minor solunar periods more important?

Major periods (about 2 hours, centered on lunar transit and lunar opposition) are generally considered the strongest feeding windows. Minor periods (about 1 hour, centered on moonrise and moonset) are secondary but still productive — especially when they overlap with sunrise or sunset.

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The species outlook is a transparent, multi-factor heuristic built from Oslo Lake's measured water quality (clarity, trophic state, depth, water-body type) and established species biology, and it now also factors in today's live conditions — wind, cloud cover, and the barometric (pressure) trend, recomputed for the current day. It's not a validated catch predictor, and water temperature is still an estimate from season and latitude unless a recent USGS gauge reading is available. Solunar times use lat/lon and Meeus astronomical formulas, shown in Central Time. Always check local regulations and current conditions before fishing.

Source: EPA National Aquatic Resource Surveys, 2026.

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