You know, bout 4 different specie of mosquito hea Hawaii, and depend on what area you in, whether it dry or wet, depend on whether they a real problem, ok? Also, if it breezy outside, which happen a lot hea, then not too active either, ok? Also, Hawaii Depart. of Health vector division do a great job of control them too, so they can be round all year round, and with alla development onna dry side of island, with golf course ponds, and water as part of landscaping, they gotta prime place to breed, and propagate, ok? Now, lotta people come hea and neva see mosquito, or get bit, sometime they think not hea, but for sure they are, just take some normal precaution, like if you sensitive to mosquito "bite"(yeah, we know not really bite, it a little needle that go inna skin, draw blood) then consider insect repellent, like DEET containing stuff, or if you worry bout toxicity of DEET, specially for little kid, then consider something with Picaridin, it available ova the counter, and work great, yeah? You know, worst place i know of for mosquito inna island gotta be ova Hana, cause it rain seem like alla time, and for sure if you visitthere, consider repellent, ok? Peace and aloha to you!