Bass Water Temperature: Spawn, Bite and What to Throw

Largemouth bass against a black background: silver-gray flank with a faint broken side stripe and a large jaw reaching back to the eye — Photo: U.S. Fish and Wildlife Service, Mountain-Prairie Region (public domain)

Key takeaways

Largemouth spawn once a shallow flat holds about 60 °F (16 °C); smallmouth follow at 60–64 °F (16–18 °C), usually 62–64 °F in Wisconsin.
The best bass fishing water is 65–80 °F (18–27 °C) for largemouth and 65–72 °F (18–22 °C) for smallmouth; above 85 °F (29 °C) the bite shrinks to dawn, dusk and shade.
In 40-degree water a bass eats about a quarter as often as in July; fish deep vertical structure with a jig, blade bait or jerkbait and count pauses in seconds.
After a cold front the trend beats the number: bass used to 60 °F (16 °C) turn hard to catch at 55 °F (13 °C), while a lake warming through 52 °F (11 °C) can fish well.
Falling water is its own table: the fall feed runs from 10 °F below the summer peak down to 50 °F (10 °C), turnover in the low 60s, the biggest bass in the low 50s.

The thermometer: bass at your water temperature

47 °F8 °C

Set to a typical mid-US lake in November. Move it to your own reading.

Bass at 47 °F, cooling: feeding, but slowing

Largemouth bass, Smallmouth bassFeeding, but slowingslowing as it cools
Spotted bassSlowfeeds from 65°

Where: largemouth on the last weeds and hard cover; smallmouth at wintering depth; threadfin shad die below 45 °F. Throw: jig and pig, blade bait or jigging spoon under the bait, suspending jerkbait; slow down.

Next, at 44 °F (largemouth bass): main body, vertical structure: bluffs, channel drops, standing timber; largemouth on weeds into the 30s

All 26 species at this temperature

Numbers from the chart on the water temperature guide and the species pages; spawn and comfort ranges move with latitude, so read them as the band to start in. Measure at the depth you fish, not at the surface.

Bass bite best in water of 65–80 °F (18–27 °C), and largemouth spawn once a shallow flat holds about 60 °F (16 °C). Those two numbers, and the bands around them, tell you where the fish sit, how often they eat, and how fast a lure can move before they let it pass. Read the water before you pick the lure: the same reading means the same fishing in Georgia in March and in Minnesota in June.

In Coutant’s laboratory tanks, largemouth bass settled at 84–90 °F (29–32 °C), warmer than any angler’s chart. On a lake they abandon that water for shade and depth, because a tank has food and oxygen and an 88-degree cove has neither.

What are the three numbers for each bass?

Every species has a band where it feeds hardest, a temperature that starts its spawn, and a stress point where feeding slows and the fish move. For the three black bass they are these:

Species	Feeds hardest	Spawn begins	Feeding slows
Largemouth	65–80 °F (18–27 °C)	about 60 °F (16 °C)	above 85 °F (29 °C)
Smallmouth	65–72 °F (18–22 °C)	60–64 °F (16–18 °C)	above 75 °F (24 °C)
Spotted bass	65–78 °F (18–26 °C)	57–74 °F (14–23 °C)	above 85 °F (29 °C)

Florida’s FWC gives largemouth the same 65–80 °F feeding range. The spawn figures come with detail. Wisconsin’s DNR has largemouth males on the nest at 60 °F and eggs laid at 62–65 °F (17–18 °C). Its usual smallmouth nesting temperature is 62–64 °F, with spawning recorded anywhere from 53 to 75 °F (12–24 °C).

The stress column is the one to remember. A smallmouth lake at 78 °F (26 °C) is a tough day; a largemouth pond at the same reading is a good one.

Why does temperature decide how often bass eat?

The reason is metabolism. A survey of 69 fish species found the rate roughly doubles with each 18 °F (10 °C) of warming. A bass at 45 °F (7 °C) digests at about a quarter of the pace of a bass at 80 °F (27 °C). So it eats a quarter as often, and moves a quarter as far to do it.

Where are the bass at each temperature?

Take the water temperature at the depth the bass are using, not at the surface. The table covers largemouth and smallmouth together; where they differ, the cell says so. It is written for water on the way up, from winter to summer; falling water gets its own table in the next section.

Water temperature	Where the bass are	What to throw	Retrieve
Below 45 °F (7 °C)	Deep and vertical: bluffs, channel bends, standing timber; smallmouth on deep rock	Hair jig or light Ned rig, blade bait, suspending jerkbait	Slowest of the year; jerkbait pauses of 5–15 seconds (FishUSA, McClelland)
45–50 °F (7–10 °C)	Still deep, on the structure that leads toward spawning flats	Football jig, jerkbait, slow-rolled spinnerbait	Slow drag, long pauses
50–60 °F (10–16 °C), pre-spawn	Staging on the first drop or point next to the flats; biggest females of the year	Lipless or crawfish-pattern crankbait, spinnerbait, jig	Medium; stop-and-go
60–65 °F (16–18 °C), spawn	On the flats in 2–8 ft (0.6–2.4 m); smallmouth on gravel by a boulder or log	Weightless stick bait, tube, Texas rig	Dead still on the bed; slow lift and drop
65–80 °F (18–27 °C), prime	Grass edges, docks, points, shade lines; smallmouth on wind-blown rock	Topwater at first and last light, Texas rig and squarebill by day	Fastest of the year; burn the moving baits
80–85 °F (27–29 °C)	Deep breaks or the thickest shallow cover; smallmouth on the thermocline edge	Deep crankbait, Carolina rig, frog over mats	Fast early, slow and deep in the sun
Above 85 °F (29 °C)	Shade, current and the thermocline; feeding shrinks to low light	Punch rig into mats, deep crankbait on ledges, black spinnerbait after dark	Slow by day, fast at night

One rule runs through the rows, and through the whole water temperature chart. As the water warms, the bass move up and the lure speeds up; past the comfort band, both come back down. The best bass lures list covers every bait in the table.

Where are the bass when the water is falling?

The same reading means a different fish in fall. At 55 °F (13 °C) in April a bass is staging for the spawn and moving toward the flats. At 55 °F in October it has a summer of growth behind it and the shad have moved up into the creek arms. It feeds harder than at any point in spring. Metabolism follows the thermometer either way, but the direction of change decides where the fish stand. Kevin VanDam’s rule for the start of it: the fall pattern begins when the surface drops about 10 °F (6 °C) below the summer peak, whatever that number is on your lake.

Water temperature (falling)	Where they are	What to throw
Above 85 °F (29 °C), late summer	Still the summer pattern: shade, current and the thermocline; feeding in the first and last hour of light	Punch rig into mats, deep crankbait on ledges, black spinnerbait after dark
80–85 °F (27–29 °C), first cool nights	Main-lake points, humps and ledges; smallmouth on the thermocline edge	Deep crankbait and Carolina rig by day, topwater until the sun clears the trees
75–80 °F (24–27 °C), the turn	About 10 °F (6 °C) off the summer peak; the first fish push to long tapering points and the first third of the creek arms	Willow-leaf spinnerbait, shallow-to-medium crankbait, a noisy topwater chugger
65–75 °F (18–24 °C), early fall feed	Shad in the creek arms and bass behind them, on the flats, points and docks, moving farther back as the water cools; smallmouth still shallow above the thermocline	Spinnerbait, squarebill, walking topwater; match the lure to the size of the shad
55–65 °F (13–18 °C), peak feed and turnover	The backs of the creeks, isolated wood and docks. The turnover hits in the low 60s and upper 50s: for a week or two fish water under 6 ft (2 m), inflowing creeks and wind-blown banks. Smallmouth slide deeper as the layers mix	Lipless crankbait, spinnerbait, swim jig; a wacky-rigged stick bait at shallow targets during the turnover
50–55 °F (10–13 °C), late fall	Steep banks and points outside the coves, hard bottom, the last green vegetation; the biggest bass of the year feed here; smallmouth on shallow rocky flats in 1–5 ft (0.3–1.5 m)	Suspending jerkbait, lipless crankbait, jig and pig; a buzzbait still catches on a warm afternoon
45–50 °F (7–10 °C), early winter	Largemouth on the remaining vegetation and hard cover; smallmouth at their wintering depth once the whole column reads under 50 °F; threadfin shad die off below 45 °F, which ends the creek-arm feed	Jig and pig, blade bait or jigging spoon under the bait, suspending jerkbait; slow down
Below 45 °F (7 °C), winter	Main body, vertical structure: bluffs, channel drops, standing timber; largemouth hold on vegetation into the 30s	Suspending jerkbait, hair jig, blade bait, spoon; the slowest presentation of the year

Two rows deserve a note. The 55–65 band holds both the best feeding of the year and the fall turnover. Virginia’s biologists put the turnover in the low 60s and upper 50s and say it resolves in a week or two. Water shallower than 6 ft never stratified, so it never turns. And the smallmouth line is a measured one. In Lake Opeongo, Ontario, acoustic tags tracked smallmouth from about 13 ft (4 m) in late September to 46 ft (14 m) by mid-November. They took the deepest water once the whole lake read under 50 °F (10 °C). Fall is also the season in which those fish gain the most energy of the year, so the deep fish are still eating.

How do you fish the spring warm-up, from 45 °F to the beds?

The spawn is a calendar written in temperature. Here is the order of decisions from the last of winter to the first bed, for a largemouth reservoir. A smallmouth lake runs the same sequence a few degrees later.

At 45–48 °F (7–9 °C), find the road, not the fish. Bass winter in the deepest water near their spawning flats. Locate a flat with a firm bottom and follow the channel or point that leads to it. Every later stage happens on that structure.
At 48–52 °F (9–11 °C), fish the afternoon. A shallow spring bay warms several degrees between dawn and mid-afternoon, and the first fish move up with it. Throw a jerkbait or a jig on the first drop. The morning reading says nothing about the afternoon bite.
At 52–58 °F (11–14 °C), speed up. The biggest females stage on the pre-spawn structure and feed hard. Crawfish-pattern crankbaits and a slow-rolled spinnerbait cover the drop; a jig picks off the fish that will not chase.
After any cold front, back up one step. A front knocks a flat back a few degrees, and the first fish slide back to the drop until they adjust; Davy Hite’s example is bass used to 60 °F turning hard to catch at 55 °F. The trend matters more than the level, so a lake warming through 52 °F can outfish one that has just dropped to 58 °F.
At 58–62 °F (14–17 °C), look for clean circles. Males sweep nests in 2–8 ft (0.6–2.4 m); light spots of cleaned bottom are the tell. Cover the flat with a lipless crankbait or swim jig and note where the bites cluster.
At 60–65 °F (16–18 °C), slow to a stop. Pitch a tube, a weightless stick bait or a Texas-rigged creature bait to the bed and leave it. Release a bed fish where it was caught; a male moved across the lake will not find his nest.
At 68–75 °F (20–24 °C), split the day. Post-spawn fish are tired and scattered. Males guarding fry take a popper in the shallows; females suspended off the first point take a jerkbait. Two slow weeks, then the prime band opens.

The how to fish for bass guide carries the rod, reel and line for all of it.

Do bass bite in 40- and 50-degree water?

Bass eat all winter. In 40-degree water (4 °C) a largemouth’s metabolism runs at roughly a quarter of its summer pace, so a fish that ate every day in July may feed once in four. The ones that do eat hold in tight groups on vertical structure, so one bite marks the spot for ten more. Fish a jig or a blade bait dead slow and count the pauses in seconds, not twitches.

Fifty-degree water (10 °C) is the turn. Below it the bass are still on winter structure. Between 50 and 55 °F (10–13 °C) the first fish stage next to the flats. That is when bass start biting in spring in any consistent way. The calendar does not decide it; three days running of afternoon shallows above 50 °F does.

When do bass stop biting in the heat?

Bass do not stop biting in summer; they stop biting where and when most people fish. Above 85 °F (29 °C) largemouth pull into shade, current and the thermocline, and feed in the first and last hour of light. Smallmouth feel it ten degrees sooner, above about 75 °F (24 °C). They slide down to the cool edge of a stratified lake, where the water can read 82 °F (28 °C) on top and 60 °F (16 °C) at 15 ft (4.6 m).

Coutant’s tank data says bass would choose 84–90 °F given unlimited oxygen and food. Lakes offer neither, so the field ceiling for largemouth sits near 85 °F. In August the thermometer that matters hangs at the depth of the shade line, not on the transducer.

Why does the spawn come in March in one state and June in another?

The numbers travel; the dates do not. Texas Parks and Wildlife puts the largemouth spawn as early as February and as late as May across Texas alone. Wisconsin’s DNR has its smallmouth nesting mostly from mid-May through June in the south of the state. A 1977 study of perch and walleye found that northern populations spawn and feed a little cooler than southern ones of the same species, and the bass agencies’ figures follow the same pattern. That is why two agencies can disagree by 5–10 °F (3–6 °C) on a spawn figure.

So a Georgia angler reads 60 °F on a flat in early March, a Minnesota angler reads it in early June, and both fish the same row of the table. The bass spawn calendar lays out the months by region. The same band-by-band treatment for crappie, trout, catfish, bluegill and walleye sits under the water temperature chart.

Gear for bass

Gear guide
Best Bass Lures: What Won the 2025 and 2026 Elite Series, Season by Season
Best bass lures by season: 18 Elite Series events were won on 10 kinds of bait. The pick for each water temperature, color and cover, plus smallmouth.
Gear guide
Bass Fishing Rods: The Six to Own, in the Order to Buy Them
The first bass fishing pole is a 7 ft medium-heavy fast casting rod. The five to add after it, the lures each one throws, and a model at $100 and $200.
Gear guide
Best Fishing Line for Bass: The Setup for Every Technique
The best fishing line for bass is four setups: 10 lb braid to a 6–8 lb leader for finesse, 12 lb fluoro, mono for topwater, 50–65 lb braid for cover.

Sources (20)

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