Spiders in Florida: Why You’re Seeing More This Fall (and How to Keep Them Out)

If you’ve noticed more webs on the porch, more spiders in the garage, or a big orb weaver suddenly strung between your mailbox and a tree, you’re not imagining it. Spiders in Florida become a lot more visible in fall, as several species finish growing, build their largest webs of the year, and follow the insects drawn to porch lights into garages, sheds, and lanais. Most of what you’re seeing is harmless — even beneficial — but a couple of Florida’s spiders are worth knowing how to identify. Here’s what’s actually going on, which spiders you’re likely dealing with, and how to keep them out of the house.

Is It Normal to See More Spiders in Florida This Time of Year?

Yes. Fall is peak spider season in Florida, but not because there are suddenly more spiders — it’s because the ones that have been around all year become much easier to notice. Orb-weaving spiders spend spring and summer growing, and by fall they’ve reached their largest size and are spinning full, often eye-catching webs to catch prey and attract mates before the end of their life cycle. At the same time, cooling nights and shifting insect activity send ground spiders like wolf spiders looking for cover, which sometimes means garages, sheds, and door thresholds.

Common Spiders You’ll Find in Florida

• Golden silk spider (banana spider) — large, brightly colored orb weaver known for huge, strong webs strung between trees; harmless despite its size
• Yellow garden spider (writing spider) — black-and-yellow orb weaver with a distinctive zigzag pattern woven into its web
• Wolf spider — large, fast-moving ground spider that doesn’t build webs and is often mistaken for something more dangerous; harmless to people
• Huntsman spider — flat-bodied and fast, sometimes found on exterior walls or inside garages; intimidating in size but not medically significant
• Southern black widow — shiny black body with a red hourglass marking on the underside; venomous and worth avoiding
• Brown widow — mottled tan-and-brown with an orange hourglass marking; increasingly common in Florida and also venomous

Why Spider Sightings Increase in Fall

A few things line up at once in a Florida fall. Orb weavers that hatched in spring reach maturity and their largest size right around this time of year, and their webs get bigger and more obvious along with them. Porch lights and exterior fixtures attract flying insects, and spiders follow the food — which is why webs tend to cluster near doorways, garage entrances, and outdoor lighting. As overnight temperatures start to dip, even slightly, ground-dwelling spiders like wolf spiders move toward warmer, more sheltered spots, sometimes right up against — or into — a house. None of this means there’s suddenly a spider infestation; it’s a seasonal pattern tied to their life cycle and Florida’s insect population.

Are Florida Spiders Dangerous?

Almost all of them are harmless to people and pets, and most are genuinely useful — spiders eat mosquitoes, flies, roaches, and other insects you’d rather not have around. The exceptions are the southern black widow and the brown widow, both of which can deliver a medically significant bite. Bites from either are uncommon since these spiders are shy and tend to stay in undisturbed spots like woodpiles, sheds, and the underside of outdoor furniture, but a bite from either should be treated as a medical concern — seek care if you’re bitten and have reason to believe it was a widow spider.

How to Identify a Black Widow or Brown Widow

The southern black widow is glossy black with a red hourglass shape on the underside of a round abdomen. The brown widow looks similar in shape but is tan or brown with mottled patterning, and its hourglass marking is more orange than red. Both build irregular, tangled webs low to the ground in protected spots — think woodpiles, under eaves, inside empty planters, or storage boxes in a garage or shed — rather than the large, open webs orb weavers spin.

How to Keep Spiders Out of Your Florida Home

Since spiders follow their food source, reducing the insects around your home goes a long way toward reducing spiders too. Seal gaps around doors, windows, and utility penetrations where spiders — and the bugs they eat — can get inside. Switch outdoor lighting to yellow “bug” bulbs or motion-activated fixtures instead of bright white lights that draw insects all night. Clear webs from eaves, doorways, and corners regularly, since an empty web gets rebuilt quickly if the spot is still productive. Reduce clutter in garages and sheds where widow spiders like to hide, and trim vegetation back from the house so it isn’t providing a bridge from the yard to your siding or soffits. Addressing the broader insect population with routine pest control also removes a lot of what draws spiders in to begin with.

DIY Spider Control vs. Professional Pest Control

Factor	DIY Spider Control	Professional Pest Control
Web removal	Effective short-term, but webs return quickly	Paired with treatment that addresses why they return
Widow spider identification	Risky without training	Technicians trained to identify and treat venomous species
Underlying insect population	Not addressed	General pest control reduces the food source spiders follow
Exclusion (sealing entry points)	Possible with time and the right materials	Identified and addressed as part of inspection
Best for	Occasional single-spider sightings	Recurring webs, widow spiders, or garage/shed infestations

When Spiders Signal a Bigger Pest Problem

A spider or two on the porch is normal, especially in fall. But a sudden increase in spiders indoors, repeated widow spider sightings in the garage, or webs reappearing constantly in the same spots can point to a larger insect population feeding them — which is worth addressing at the source. Prodigy Pest Solutions treats spiders as part of a broader pest control approach that also covers the insects they’re feeding on, rather than just knocking down webs that come right back. It’s a similar approach to how we handle other fall pest pressure in Florida, including the rodents that move indoors this time of year and the last wave of lovebugs that draw in the insects spiders eat.

Frequently Asked Questions

Question	Answer
Why are there so many spiders in Florida in the fall?	Orb-weaving spiders reach full size and build their largest webs of the year in fall, and cooling nights push ground spiders toward shelter, making both far more noticeable than in warmer months.
Are spiders in Florida poisonous?	Almost all Florida spiders are harmless; the southern black widow and brown widow are the exceptions and can deliver a medically significant bite.
How can I tell a black widow from a brown widow?	The black widow is glossy black with a red hourglass marking, while the brown widow is tan or mottled brown with a more orange hourglass marking.
Do spiders mean I have another pest problem?	Often, yes — spiders follow their food source, so a lot of spider activity can point to a larger population of flies, roaches, or other insects nearby.
Will general pest control get rid of spiders?	Routine pest control that reduces the insect population spiders feed on typically reduces spider activity as a result, especially when paired with web removal and exclusion.
How do I keep spiders out of my garage or lanai?	Seal gaps, switch to insect-resistant outdoor lighting, clear webs and clutter regularly, and trim vegetation away from the structure so it isn’t a bridge from the yard.

Serving Homes Across Florida

Prodigy Pest Solutions provides seasonal pest control, including spider treatment, for homeowners throughout the following communities:

• Sarasota, FL
• Bradenton, FL
• Venice, FL
• Parrish, FL
• Lakewood Ranch, FL
• Boca Raton, FL
• Tampa, FL