Pack or skip
Insect repellent for Sydney in May
Verdict
Pack it
Warm (67°F) plus 11 rainy days = mosquito conditions.
Why
Sydney in May averages highs of 67°F, lows of 53°F, 11 rainy days.
That climate means insect repellent earns its space in the bag. Warm (67°F) plus 11 rainy days = mosquito conditions.