Santa Cruz Weather in May
In May, Santa Cruz averages a high of 26°C (80°F) and a low of 18°C (64°F), from 26 years of daily records (1982–2025).
26°C
Average high
80°F
18°C
Average low
64°F
34°C
Record high
93°F · May 8, 2011
4°C
Record low
39°F · May 18, 1977
What May Is Like in Santa Cruz
- May 2025 was the warmest May in 26 years of records, 2.4°C (4.3°F) above the long-run average.
- The coldest May reading, 4°C (39°F) on May 18, 1977, has not been matched in 48 years.
- A typical May brings 8.2 days above 30°C (86°F).
- The warmest May in the record was 2025; the coldest was 2004.
At least 1 mm of rain falls on 38% of May days.
Warmest: 1994 (28.6°C)Latest: 2025 (28.4°C)10-year averageLong-run average (26.4°C)
Look Up a Day in May
See the weather in Santa Cruz on any May date, year by year.
Source: NOAA GHCN-Daily, El Trompillo (1973–2025). Averages cover 1982–2025. How we compute this