Mosquito season in Maui County, HI: when it starts and ends

Mosquito months in Maui County

Mosquitoes in Maui County, HI can be active in any month. The worst stretch is August to August.

1. Jan
2. Feb
3. Mar
4. Apr
5. May
6. Jun
7. Jul
8. Aug
9. Sep
10. Oct
11. Nov
12. Dec

What to do in Maui County, and when

• No off-season here: tip out standing water every week, all year.
• A yard treatment matters most August.
• No West Nile cases since 2016, so bites in Maui County are a nuisance; check window screens.

Maui County against the rest of HI

Maui County has the 4th longest season of 5 HI counties, at 365 days against 365 in Honolulu County and 272 in Hawaii County. Its mean temperature is 64.2°F.

• Kalawao County: all year (365 days, 0 WNV)
• Kauai County: all year (365 days, 0 WNV)
• Hawaii County: March 26 to December 23 (272 days, 0 WNV)

West Nile in Maui County

CDC ArboNET lists no human West Nile cases for Maui County from 1999 to 2025.

More: how the dates are worked out · where mosquitoes never stop.