The official National Weather Service forecast for Santa Maria — 34.953°N, 120.4357°W, population 143,609, 63.1 miles from I-5. Forecasts here are written by NWS LOX, this county’s forecast office.
| Santa Barbara County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 62 | 61 | 64 | 67 | 72 | 77 | 83 | 83 | 81 | 75 | 67 | 62 | 71 |
| Avg low °F | 40 | 40 | 41 | 43 | 47 | 52 | 56 | 56 | 54 | 49 | 44 | 40 | 47 |
| Precip in | 3.8 | 4.2 | 2.6 | 1.2 | 0.4 | 0.0 | 0.0 | 0.0 | 0.1 | 0.7 | 1.7 | 3.3 | 18.0 |
1996–2025 normals for Santa Barbara County — the climate division Santa Maria sits in. All-time county record high 107.6°F (2020-09-07); record low 15.6°F (1990-12-23). Source: NOAA / National Weather Service.