In places like Palm Beach County, winter temperatures often hover well above the 50 degrees Fahrenheit mark that is the minimum threshold required to slow mosquito activity. Without that temperature drop, mosquitoes never truly go dormant.
According to mosquito season data for South Florida, expect meaningful biting activity from February through December, with true peak intensity from June through October.
June through September represent peak mosquito season, coinciding with Florida’s rainy season. July and August typically see the highest activity, particularly in inland and urban areas where post-storm standing water accumulates quickly.
In 2025, South Florida residents reported aggressive mosquito swarms following the breakdown of early-season drought conditions, when stored eggs in dry soil hatched in large numbers once rains returned.
Understanding where mosquitoes breed is the first step to reducing their impact on your property. In South Florida, breeding habitat is everywhere.
Clogged gutters hold standing water for days after rain. This is one of the most productive mosquito breeding sites on any residential property and one of the most overlooked.
The saucers under outdoor potted plants collect and hold water. Empty them after every rain event.
Areas that do not drain properly after rain become temporary breeding ponds. Addressing drainage issues is one of the highest-impact steps a homeowner can take.
Pool covers that sag and collect water, equipment storage areas, and even pool filter systems that are not running create ideal conditions.
Buckets, toys, recycling bins, birdbaths, pet water dishes, and tarps all collect water and produce mosquitoes within days.
Overwatering creates persistently damp soil and standing water around irrigation heads. Adjust irrigation schedules during rainy season to avoid adding to the moisture load.
You are reading this in April. Rainy season begins in June. You have approximately six to eight weeks to get ahead of this before conditions become dramatically harder to manage.
Empty saucers, fix drainage issues, clean gutters, and store any containers that collect water.
Getting a professional barrier treatment in place before the first heavy rains of the season is significantly more effective than reacting after populations have already exploded.
A single treatment will not carry you through a South Florida summer. Ongoing monthly or bi-monthly treatments during rainy season are the standard approach for homeowners who want to actually use their outdoor spaces.
Damaged or poorly fitted screens are a direct pathway for mosquitoes into your living space. Repair or replace any screens that are torn, bent, or do not seal properly.
At Wise House Pest Control, we have been helping Palm Beach County and Treasure Coast families reclaim their outdoor spaces from mosquitoes. We use treatments that target mosquitoes where they actually live and rest, not just where you see them flying. Rainy season is coming. Do not wait until you are being driven inside at 6pm every evening to do something about it.
1177 Hypoluxo Rd Suite C-31 Lantana, FL 33462 (561) 727-8239
464 NW Peacock Blvd, Unit 106 Port St Lucie, FL 34986 (772) 783-4300
