Because of the tropical nature and humidity of the area there are mosquitoes. I recently moved to Hi. from Ca. where they have the West Nile Virus but they do not have that here. A good idea in any wet climate is to buy mosquito repellent. I prefer something with DEET in it, although I have not used any in the month I have been here and have only been bitten by mosquitoes once or twice. In other words yes mosquitoes, and no not a big problem.