Hawaii Mosquito Forecast

Hawaii's tropical climate keeps mosquito pressure moderate and year-round. There's no true off-season — warmth and rain sustain breeding year-round, with no real off-season, with activity heaviest on wetter windward coasts and in the days after passing showers. All of Hawaii's mosquitoes are introduced species, but they're well established statewide.

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When is mosquito season in Hawaii?

Hawaii's mosquito season runs year-round, with no real off-season. Activity ramps up once overnight lows hold above about 50°F, and surges in the two to three days after rain, when fresh standing water triggers a new hatch. Rather than a single peak, expect rolling activity that tracks the rain.

Where are mosquitoes worst in Hawaii?

Within Hawaii, the most consistent pressure tends to land around Honolulu, East Honolulu, and Pearl City. Warm overnight lows and heavy humidity in and around these metros keep mosquitoes biting well past sundown. Anywhere near rivers, marshes, lakes, or recent flooding will read higher than the surrounding area — exactly the kind of local detail the live map above is built to show.

How the Hawaii forecast works

MosquitoCast estimates Hawaii's mosquito activity from live weather — temperature, humidity, wind, and recent rainfall — layered on the area's long-term rainfall climate, elevation, and terrain, and refreshed every day from NOAA's forecast data. It's the same model nationwide, so the reading for Hawaii is directly comparable to anywhere else in the country.