Activity tracks temperature
Iguanas are cold-blooded, so their activity tracks temperature and the breeding calendar. In the cooler stretch from December through February they slow down, bask more, and a hard cold snap can knock them back briefly. As spring arrives the population starts to build: adults get active and females dig nests.
Through the summer heat, activity and visible numbers peak — and if spring's clutches hatched, you're now also seeing juveniles all over the property. A yard that looked manageable in January can look overrun by July.
The seasonal rhythm on a Palm Beach County lot
Waterfront and canal-side lots feel every season more sharply than inland ones because the animals are concentrated along the bank year-round.
- December–February: slowest; basking in the open, occasional cold-stun
- March–May: population builds; females dig and lay
- June–August: peak adult activity plus this year's hatchlings
- September–November: still active, tapering as fronts arrive
The leverage point comes early
For a Palm Beach County property the practical takeaway is that the leverage point comes early. Clearing a property and collapsing burrows before spring nesting breaks the cycle before the numbers jump, instead of chasing hatchlings all summer. If you only act once numbers have already exploded in July, you're managing a colony rather than preventing one.
Common questions
When is iguana activity highest?
Through the summer heat, roughly late spring into early fall. That's when adults are most active and, if spring's clutches hatched, juveniles are everywhere too.
Does winter fix the problem?
Only briefly. Cooler weather slows them and a hard cold snap can knock numbers back, but survivors return with the warmth, so it's no substitute for removal and prevention.
Should I wait until summer to call?
No. Acting in late winter or early spring, before nesting, gives you far more return than reacting once the summer surge and hatchlings have already arrived.
