Pack or skip
Insect repellent for Tokyo in April
Verdict
Pack it
Warm (65°F) plus 9 rainy days = mosquito conditions.
Why
Tokyo in April averages highs of 65°F, lows of 48°F, 9 rainy days.
That climate means insect repellent earns its space in the bag. Warm (65°F) plus 9 rainy days = mosquito conditions.