The official National Weather Service forecast for Santa Cruz — 36.9741°N, 122.0308°W, population 169,038, 24.4 miles from I-280. Forecasts here are written by NWS MTR, this county’s forecast office.
| Santa Cruz County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 60 | 61 | 63 | 66 | 70 | 75 | 77 | 78 | 78 | 74 | 65 | 59 | 69 |
| Avg low °F | 41 | 41 | 42 | 44 | 47 | 50 | 54 | 54 | 53 | 49 | 44 | 41 | 47 |
| Precip in | 6.6 | 6.3 | 4.7 | 2.2 | 0.8 | 0.1 | 0.0 | 0.0 | 0.1 | 1.5 | 3.6 | 7.3 | 33.2 |
1996–2025 normals for Santa Cruz County — the climate division Santa Cruz sits in. All-time county record high 108.4°F (2020-09-07); record low 15.4°F (1990-12-22). Source: NOAA / National Weather Service.