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Doubled in Just a Week... Mosquitoes Surge as Weather Cools

Lee Gang

Published : Sep 7, 2026 7:52 AM

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Let's take a look at today's final insightful news.

Mosquitoes have doubled in number in just a week.

It has been getting cooler in the mornings and evenings lately.

For those of you who felt like there were more mosquitoes around, it is not just a feeling—it is actually true.

According to the Korea Disease Control and Prevention Agency, the mosquito index stood at 100.9 vectors from August 24 to 29.

This is nearly a double increase compared to 53 vectors the previous week.

This marks the first time the index has exceeded 100 vectors under the artificial intelligence-based real-time surveillance system introduced this year.

The most common analysis suggests that temperatures are the reason.

Mosquitoes are most active between 25°C (77°F) and 30°C (86°F).

It appears that mosquitoes, which slowed down during the scorching heat waves, have become active again as temperatures dropped somewhat.

The Korea Disease Control and Prevention Agency advises that people should remain vigilant against mosquito-borne infectious diseases until October.

If you have mosquito repellent when engaging in outdoor activities, make sure to use it.

They also urge people to get rid of standing water around their homes.