Pack or skip
Umbrella for San Jose in May
Verdict
Skip it
Only about 2 rainy days on average — you can risk it.
Why
San Jose in May averages highs of 76°F, lows of 54°F, 2 rainy days.
That climate means an umbrella isn't pulling its weight. Only about 2 rainy days on average — you can risk it.
What to bring instead
Consider rain jacket instead →
See the pack-or-skip verdict for rain jacket in San Jose in May.