Generally, average temperature in California in the month of May is 15. High temperatures are around 22 and low being around 12. See our table below for a full breakdown:
| Month | Degrees Celsius |
|---|---|
| Temperature | 15 |
| High Temperature | 22 |
| Low Temperature | 12 |
| Sunshine Per Day | 10 |
Useful Links: California Weather: Average Weather & Yearly Climate