Pack or skip
Insect repellent for São Paulo in December
Verdict
Pack it
Warm (80°F) plus 14 rainy days = mosquito conditions.
Why
São Paulo in December averages highs of 80°F, lows of 65°F, 14 rainy days.
That climate means insect repellent earns its space in the bag. Warm (80°F) plus 14 rainy days = mosquito conditions.