Pack or skip
Insect repellent for Ljubljana in May
Verdict
Pack it
Warm (70°F) plus 12 rainy days = mosquito conditions.
Why
Ljubljana in May averages highs of 70°F, lows of 51°F, 12 rainy days.
That climate means insect repellent earns its space in the bag. Warm (70°F) plus 12 rainy days = mosquito conditions.