Here is information on that subject, courtesy of the American Camellia Society Website. Most camellias can be propagated via cuttings taken around the summer time. I have not taken cuttings this time of the year so I cannot comment on how successful anyone would be. Put the odds on your favor by taking many cuttings instead of just one, two or three.

Here is a link that might be useful: Methods of propagating camellias

Most folks feel the optimun time is mid summer here in the south, just after the new flush of growth has hardened off & the humidity is high. But I know of many folks that have GOOD sucess in every month except september-- so go for it!!!!!!

I have been successful cutting them in the fall and rooting them in a forsythe pot on an enclosed porch. I have had more success then than in the heat of the summer.
Linda