Ahhh! The eternal question - mozies are known year round in sub-tropical climates - but if it's anything like the rest of the area - october is a nasty month. It does depend on the amount of rain! If you have heavy rain and then about a week, 2 weeks of sun -you can count of those mozies appearing.
it's mosquito season here at the moment.
Dry, low humidity, cool weather - not so many mosquitos.
PS the sun came out here in bermuda today - first time in about 10 days!