Pack or skip
Insect repellent for Busan in December
Verdict
Skip it
Too cold or too dry for mosquitoes to matter.
Why
Busan in December averages highs of 50Β°F, lows of 37Β°F, 5 rainy days.
That climate means insect repellent isn't pulling its weight. Too cold or too dry for mosquitoes to matter.