I had a Camellia japonica 'Sweet Sensations' open two blooms on Oct 7, and a C. sasanqua 'Setsugekka' open two on Oct 10, with many more blooms to come. The temperatures here in Texas are still reaching 90 °F.
Neither flower is remarkable, except both have perfume, very unusual for Camellias. (I am not computer literate so you would need to lookup pictures on the net .)
Are Camellias blooming anywhere else yet? Most of the time I am hoping a January or February freeze does not kill the C. japonica buds before they open.