FleaDates › Flea season › South Carolina › Charleston
Charleston · SC
When does flea season start in Charleston?
Charleston doesn't get a real flea off-season — every month stays warm enough for fleas to keep breeding, heaviest Mar–Nov. Unlike the South Carolina statewide picture, Charleston's averages never drop low enough to shut fleas down.
Ticks in Charleston
Local tick activity typically runs year-round, heaviest Feb–Dec. The species to know in South Carolina: lone star tick, American dog tick, Gulf Coast tick, blacklegged (deer) tick.
More on species and timing: South Carolina tick season.
Numbers come from NOAA U.S. Climate Normals (1991–2020) recorded at CHARLESTON INTL AP — a climate-based estimate; real years wobble.
Frequently asked questions
When does flea season start in Charleston?
It never fully stops — Charleston's monthly averages support flea activity essentially all year, with the heaviest stretch Mar–Nov.
Is flea season in Charleston different from the rest of South Carolina?
Somewhat. Unlike the South Carolina statewide picture, Charleston's averages never drop low enough to shut fleas down. The statewide page averages several stations across South Carolina; this page uses the normals recorded at CHARLESTON INTL AP.
Do dogs in Charleston need prevention outside flea season?
Yes — vets recommend year-round parasite prevention regardless of the local calendar. Indoor fleas ignore the weather entirely, and ticks in South Carolina are typically active year-round, a longer window than fleas get.