Pack or skip
Insect repellent for San Jose in December
Verdict
Optional
Borderline conditions β a travel-size deet stick is cheap insurance.
Why
San Jose in December averages highs of 57Β°F, lows of 41Β°F, 8 rainy days.
That climate makes insect repellent a judgment call. Borderline conditions β a travel-size deet stick is cheap insurance.