Mosquito season in Glynn County, GA: when it starts and ends

Mosquito months in Glynn County

In a normal year mosquito season in Glynn County, GA starts around January 24 and ends around January 6, about 50 weeks.

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 Glynn County, and when

• Start tipping out standing water weekly by January 10.
• Book any yard treatment for late January, ahead of the July peak.
• Repellent can go away after January 6.
• 2 West Nile cases since 2016 (last 2024): you should use repellent at dusk May to October, more so if over 60.

Glynn County against the rest of GA

Glynn County has the 1st longest season of 159 GA counties, at 347 days against 347 in Glynn County and 199 in Union County. Its mean temperature is 68.6°F.

• McIntosh County: February 3 to January 3 (334 days, 0 WNV)
• Candler County: February 12 to January 10 (332 days, 1 WNV)

West Nile in Glynn County

From 1999 to 2025, CDC ArboNET counted 9 human West Nile cases in Glynn County (6 neuroinvasive) across 5 years. The worst was 2012 with 3; the latest was 2024.

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