Know when the ants fly.
Dealate forecasts ant nuptial flights species by species: the day's best window, a rolling 7-day outlook, and a live forecast map.
The nuptial flight is the one brief window each year when a colony's winged queens and males, the alates, leave the nest together to mate on the wing. It usually lasts a few hours, triggered by the right mix of warm ground temperature, humidity, and often rain earlier that day. A mated queen sheds her wings within minutes of landing, a dealate now, and either digs in alone or joins others founding a new colony nearby, while the males that fertilised her die within a day or two, their part in the colony's year already done. A colony gets one shot at this most years, so a flight that goes wrong or gets missed can mean waiting a full year for the next chance, sometimes longer for a colony still too young to fly at all. Miss it and it's gone until next season. Dealate tells you the day, the hours, and the species, so you're outside at the right moment instead of finding wings on the doorstep the next morning.
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The real thing: the 7-day outlook picks the best day, and every species is scored on its own, not folded into one blanket bug forecast.
Every species has its own trigger and its own calendar: a hot, humid evening that sends one genus streaming out of the ground can leave its neighbor untouched underground for another week. That's why Dealate scores each species separately instead of folding them into one blanket alert. For a keeper watching for a founding queen, that distinction is the difference between an empty afternoon and the one chance you get all year before the window closes for good.
When will ants swarm near me?
Different ants fly under different conditions, so Dealate Pro scores each species' odds separately rather than giving you one generic "bug forecast." See which species are likely to take flight at your location, or any place you search, and how strong the odds are.
What time of day do ants take their nuptial flight?
Flights happen in a window of hours, not all day. Dealate shows the day's best window, the hours when a nuptial flight is most likely, so you know when to look up.
Will ants fly this week?
Dealate publishes a rolling 7-day outlook, built from temperature, humidity, rainfall, wind, and the seasonal and daily patterns that trigger flights, so you can plan your week around the days most likely to produce a flight.
Ant nuptial flight map
Pan a live map of flight probability, cell by cell, and see where a flight is building anywhere in the world.
How do I get an alert when ants fly?
Turn on species alerts by email with Dealate Pro and get a heads-up when a species you follow is likely to fly near your saved location, so you never miss one.
Who it's for
Built for ant keepers hunting queens to start a colony, naturalists and citizen scientists, students, and professional myrmecologists. If you want to be outside at the right moment, it's for you. Log what you find (species, place, time) to build your own field history and help sharpen the forecast for everyone.
Every score comes from published flight-trigger thresholds and live weather, not a guess.
See how the forecast worksDealate runs on the web today, and it's coming to the App Store & Google Play.
Pricing
Dealate has two tiers. A free account (sign up, no card) shows today's overall flight-chance band for your saved location, keeps your own sighting log, and opens the community sightings map around it. Dealate Pro, from $5.99/mo, adds the full forecast: odds for every species, the day's best window, the 7-day outlook, the live pan-anywhere map, your own GPS location, search anywhere, and species alerts by email. Every recurring plan starts with a 7-day free trial.
See all Pro plansQuick answers
When do ants swarm?
It depends on the species and the weather. Dealate scores each species' odds day by day so you don't have to guess.
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