according to Time magazine:
There’s precedent for the idea that the COVID-19 outbreak will collapse with the onset of summer.
The common cold is most prevalent in the winter and spring, and influenza is most common during the fall and winter in the U.S., with flu activity peaking between December and February, according to the CDC.
It appears that COVID-19 is transmitted in the same fashion as the flu and common cold: by close contact with infected people and from respiratory droplets when an infected person sneezes or coughs.
There’s a variety of reasons that influenza and cold infections plummet in the summer, but a major one is that that warm, humid weather can make it harder for respiratory droplets to spread viruses.
“The droplets that carry viruses do not stay suspended in humid air as long, and the warmer temperatures lead to more rapid virus degradation,” says Elizabeth McGraw, director of the Center for Infectious Disease Dynamics at Pennsylvania State University.