Pack or skip
Insect repellent for Tokyo in August
Verdict
Pack it
Warm (88°F) plus 10 rainy days = mosquito conditions.
Why
Tokyo in August averages highs of 88°F, lows of 75°F, 10 rainy days.
That climate means insect repellent earns its space in the bag. Warm (88°F) plus 10 rainy days = mosquito conditions.