Pack or skip
Insect repellent for Singapore in May
Verdict
Pack it
Warm (91°F) plus 16 rainy days = mosquito conditions.
Why
Singapore in May averages highs of 91°F, lows of 78°F, 16 rainy days.
That climate means insect repellent earns its space in the bag. Warm (91°F) plus 16 rainy days = mosquito conditions.