Does Cooler Weather Mean Fewer Mosquitoes in Jacksonville?

Posted by Mosquito Squad Plus

October 28, 2026

Does Cooler Weather Mean Fewer Mosquitoes in Jacksonville?

Cooler weather in Jacksonville can mean fewer mosquitoes, but don’t expect the mosquito population to disappear in autumn.

Relatively cooler weather offers Northeast Florida residents a reprieve from the hot, humid summer season. And while cooler weather can result in fewer mosquitoes buzzing around our backyards, mosquito activity can (and likely will) continue whenever conditions allow.

In contrast to northern states with prolonged freezing temperatures, Northeast Florida experiences cooler overnight and morning temperatures, followed by warm afternoons. This can bring biting mosquitoes right back into the picture.

How Cold Does It Have to Be for Mosquitoes to Stop Biting You?

Mosquitoes are cold-blooded insects, which means their body temperature and activity levels are influenced by surrounding temperatures. Many mosquito species become less active as temperatures drop into the fifties, but overall, responses vary.

When temperatures climb again, surviving mosquitoes might resume activity. A brief cold snap doesn’t affect them like an extended freeze would. Mild winters mean that Northeast Florida communities won’t necessarily have to wait until spring to experience an uptick in mosquito activity.

What’s more, different mosquito species survive unfavorable conditions differently – some overwinter as eggs, while some adults survive in sheltered locations around your home.

Does This Make Fall Mosquito Control Important Here?

Indeed, it can be. Last month, the Florida Department of Health in Duval County issued a mosquito-borne illness alert after a second confirmed case of locally acquired West Nile virus. This announcement should be a reminder to us all that mosquito-borne illnesses aren’t exclusively a summer concern.

West Nile virus, as you probably know, is transmitted through the bite of an infected mosquito. Most people who are infected never experience symptoms. Some develop mild flu-like symptoms, such as fever, headache, and body aches.

The presence of mosquitoes doesn’t equate to the presence of WNV-infected mosquitoes. However, reducing the likelihood of mosquito bites remains an essential preventive measure, regardless of the season.

What Can You Do About Fall and Winter Mosquitoes?

Even as temperatures fluctuate, it’s certainly worthwhile to continue checking your property for potential mosquito breeding locations. Fall leaves can clog gutters, and when coupled with seasonal rains, they can create potential breeding spots.

To help reduce mosquito activity across your property, it’s important to control stagnant water sources. This means keeping gutters clean, emptying planters and other containers, trimming back dense vegetation, and maintaining areas around pools and other water features, but that’s not all.

Continuing professional mosquito control with Mosquito Squad Plus during the fall and winter seasons can help dramatically reduce mosquito activity. Sure, fewer mosquitoes is a benefit of cooler weather in Northeast Florida, but it can also create a false sense of security. One or two warm afternoons, and mosquitoes will be right back up to their dirty habits.

Where Do We Offer Mosquito Control Services?

Be more comfortable and have more time enjoying your backyard with fewer pests and less worry about the potential for infestations with a Florida pest control package by Mosquito Squad Plus.

We’re pleased to offer year-round outdoor pest control service in these areas and beyond:

Search for mosquito control near me and choose Mosquito Squad Plus.

Mosquito Squad Plus of Northeast Florida is a trusted tick control and mosquito control company, serving Jacksonville Beach, St. Augustine, Ponte Vedra Beach, Jacksonville Beach, and surrounding areas.

At Mosquito Squad Plus of Northeast Florida, our goal is your complete satisfaction! That’s why we offer a 100% customer satisfaction guarantee.

Put our mosquito control services to work for all your needs. Call Mosquito Squad Plus of Northeast Florida at (904) 844-0816 to learn more about our formulas and outdoor pest control plans.