Do Squirrels Come Out at Night? Which Ones, and What You Heard

Grey and fox squirrels are strictly daytime animals. If something is moving in the roof after dark, it is almost certainly not one of them.

By Zakaria September 21, 2026 4 min read Save to Pinterest

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A red squirrel clinging to a trunk in a misty, low-lit conifer wood — Photo: Schwarzwaldandi, Pixabay Content License, via Pixabay

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Grey and fox squirrels are strictly daytime animals. So if something has been moving in the ceiling at two in the morning, the useful conclusion is that it is probably not a squirrel.

The short answer

Grey, fox, red and ground squirrels are all diurnal, active in daylight with peaks after dawn and before dusk, and they sleep in a drey or cavity overnight. Flying squirrels are the exception and are strictly nocturnal. That makes the timing of attic noise the most reliable identification tool available: noise starting at full dark suggests flying squirrels, rats, mice, raccoons, bats or an opossum, while noise starting at first light suggests a grey squirrel. Squirrels do not hibernate, but they sit out heavy rain, wind and extreme cold, and winter activity clusters around midday.

Grey, fox, red and ground squirrels: daytime only
Flying squirrels: strictly nocturnal. The exception that explains most cases
Timing is the best identification tool for attic noise
Peaks after dawn and before dusk, lull at midday
No hibernation, but they sit out bad weather

When the noise starts is the most reliable clue you have.

Who is awake when

By species

Species	Active
Eastern grey	Daytime. Dawn and late afternoon peaks
Fox squirrel	Daytime
Red squirrel	Daytime
Ground squirrels	Daytime
Chipmunks	Daytime
Flying squirrels	Night only. From well after dark

Everything about a grey squirrel is built for daylight — colour vision, depth perception for judging jumps, a sense of caution that depends on seeing a predator coming. The night niche is left to the flying squirrels, and they have the enormous dark eyes to match.

The daily pattern

First light to mid-morning — the main feeding period
Midday lull, pronounced in hot weather
Late afternoon to dusk — the second peak
Back in the drey before dark
In heavy rain, wind or hard cold they may not come out for a day or more
Winter: no hibernation, but activity shifts to the warmest part of the day, which is why midwinter sightings cluster around midday

So what is in the attic

Reading the noise

Sound and timing	Likely
Scurrying from first light	Grey squirrel
Light, fast, from full dark, rolling sounds	Flying squirrels — usually several
Scratching in walls at night, gnawing	Rats or mice
Heavy thumping, dragging, vocal	Raccoon
Slow shuffling, sometimes hissing	Opossum
Fluttering at dusk, squeaking	Bats
Chirping in the wall at dawn	Birds

Timing narrows it faster than anything else

Sit somewhere quiet and note when the noise starts and stops, for two nights.

Starts at first light → grey squirrel
Starts at full dark, stops before dawn → flying squirrels or rodents
Heavy and irregular, all night → raccoon

That one observation saves most of the guessing, and it is free.

Flying squirrels specifically

The commonest resolution to “squirrels in my attic but only at night”, and they are far more abundant in wooded suburbs than people realise.

Noise starts at full dark, not dawn
Lighter and faster than a grey squirrel, with rolling sounds — nuts moved across the ceiling
Entry holes as small as an inch, where a grey squirrel needs two or more
Smaller droppings, scattered
Several animals. Southern flying squirrels huddle communally in winter, a dozen or more in one cavity

Do not seal a hole on a winter huddle

Because they are colonial in winter, sealing an entry point can shut a dozen animals into a ceiling. Flying squirrels are also protected in several states.

One-way exclusion doors, then seal — and do it in autumn or spring, not mid-winter.

For where they actually spend the night, see where squirrels sleep at night. The other familiar night noise in a garden is not a mammal at all — why crickets make noise at night.

A squirrel genuinely out at night

Unusual, and the reasons are all worth noting:

Displaced from its nest by a predator, a storm or tree work
Strong artificial lighting, which extends activity at the margins
Disturbed by something in the tree
Sick or injured

A squirrel out at night that also seems disoriented, unafraid or unsteady is one to keep away from — and to report to animal control rather than approach.

While you are listening

Two other things are commonly mistaken for an animal at night:

A house cooling and contracting — sharp single cracks and ticks, not sustained movement
Branches on the roof in wind, which sounds remarkably like something walking

Both stop being confusing once you have noted the timing, which is the whole method here.

Our picks

#	Pick	Best for	Where to buy
1	Trail camera with infrared, no white flash	For identifying what is actually moving at night	Check price for Trail camera with infrared, no white flash →
2	Baffle for a feeder pole	For the night visitors you do not want	Check price for Baffle for a feeder pole →

For identifying what is actually moving at night

Trail camera with infrared, no white flash

Grey squirrels are strictly daytime, so anything at your feeder after dark is a different animal. One night of footage answers it.

Illumination: No-glow infrared (940 nm)
Why: White flash makes animals avoid the spot

What we liked

Settles flying squirrel against rat against possum in one night
No-glow does not train animals away from the camera

Worth knowing

No-glow images are black and white and shorter range than white flash

Check current price

For the night visitors you do not want

Baffle for a feeder pole

Placement does the work, not the baffle. Four feet up and ten feet clear, or do not bother buying one.

Type: Wrap-around or torpedo
Height: Bottom at least 4 ft off the ground
Clearance: 8–10 ft from anything jumpable

What we liked

Works on rats, raccoons and squirrels alike because it defeats climbing
One purchase, no refilling, nothing to reapply

Worth knowing

Useless if mounted low or if a fence is within jumping range

Check current price

Common questions

Are squirrels nocturnal?

Grey squirrels, fox squirrels, red squirrels and ground squirrels are all diurnal — active in daylight, with peaks in the first hours after dawn and again before dusk, and asleep in a nest or cavity overnight. Flying squirrels are the exception and are strictly nocturnal, emerging well after dark. That distinction matters practically, because the timing of a noise in a roof is the most reliable way to work out what is making it.

Why do I hear noises in my attic at night then?

Because it is probably not a grey squirrel. Nocturnal attic noise usually means flying squirrels, rats or mice, raccoons, bats or an opossum, and the sound tells you a lot — light, fast scurrying and rolling sounds suggest flying squirrels or rodents, while heavy thumping and dragging suggests a raccoon. A grey squirrel does sometimes shift in its sleep or move briefly if disturbed, but sustained activity all night is not a grey squirrel's pattern.

What time of day are squirrels most active?

Early morning and late afternoon, with a noticeable lull through the middle of the day, particularly in hot weather. Activity is much reduced in heavy rain, high wind and extreme cold, when they stay in the drey for a day or more. They do not hibernate, so even in midwinter they come out to retrieve cached food, usually during the warmest part of the day, which is why winter sightings cluster around midday rather than dawn.

Could a squirrel be out at night for another reason?

Occasionally, and the reasons are all unusual: a squirrel displaced from its nest by a predator or a storm, one disturbed by tree work or a felled nest tree, an animal in an area with strong artificial lighting, or a sick or injured individual. A squirrel active at night in an obviously disoriented way, alongside a lack of fear or unsteady movement, is a reason to keep away from it and to call animal control rather than to investigate.

How do I tell flying squirrels from grey squirrels in the attic?

Timing first — flying squirrel noise starts at full dark and stops before dawn, grey squirrel noise starts at first light. The sounds are also lighter and faster, often with a distinctive rolling sound as nuts are moved across the ceiling. Entry holes can be as small as an inch where a grey squirrel needs two or more, droppings are smaller, and because southern flying squirrels huddle communally in winter there are usually several animals rather than one.

Do squirrels sleep all night?

Yes. Grey and fox squirrels return to a drey or a tree cavity before dusk and stay there until first light, and in cold weather they may not emerge for a day or two at a time, sharing a nest with others for warmth. They do not hibernate and have no true winter dormancy, but they do sit out bad weather. A squirrel's whole sensory equipment is built for daylight, which is why the nocturnal niche is left to the flying squirrels.

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Two grey squirrels at the mouth of a cavity in a tree trunk, one looking out

Backyard Animals · Sep 21, 2026