Last updated: July 31, 2025
Under the Köppen–Geiger climate classification Santa Maria features a hot semi-arid climate (BSh). Temperatures typically range between 12 °C (54 °F) and 31 °C (88 °F) through the year, but rarely can drop to -11 °C (12 °F) or can rise to as high as 42 °C (108 °F). The average annual precipitation amounts to about 559 mm (22.0 inches) and receives 60 rainy days on the 1 mm (0.04 inches) threshold annually. Santa Maria enjoys an average of 3270 hours of sunshine throughout the year, and daylight varies from 10 hours 16 minutes to 13 hours 58 minutes per day.
The warmest months in Santa Maria are June, July and August, with daily mean temperatures ranging from 30 to 31 °C (86 - 88 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 12 to 14 °C (54 - 57 °F) throughout the day. On average each year, Santa Maria experiences 216 days above 25 °C (77.0 °F) and 5 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 31°C (87°F) | 35°C (94°F) | 34°C (93°F) | 40°C (104°F) | 41°C (105°F) | 42°C (107°F) | 42°C (108°F) | 41°C (106°F) | 41°C (105°F) | 38°C (100°F) | 31°C (88°F) | 30°C (87°F) |
| Mean maximum | 26°C (79°F) | 31°C (88°F) | 32°C (91°F) | 37°C (100°F) | 38°C (101°F) | 40°C (104°F) | 40°C (104°F) | 40°C (104°F) | 39°C (102°F) | 35°C (95°F) | 29°C (85°F) | 28°C (82°F) |
| Average high | 18°C (65°F) | 21°C (70°F) | 26°C (78°F) | 29°C (85°F) | 33°C (91°F) | 35°C (96°F) | 37°C (98°F) | 37°C (98°F) | 33°C (92°F) | 28°C (83°F) | 23°C (73°F) | 20°C (68°F) |
| Daily mean | 12°C (54°F) | 14°C (57°F) | 19°C (67°F) | 23°C (73°F) | 27°C (80°F) | 30°C (86°F) | 31°C (88°F) | 31°C (88°F) | 28°C (83°F) | 23°C (73°F) | 17°C (63°F) | 14°C (57°F) |
| Average low | 6°C (44°F) | 8°C (47°F) | 14°C (57°F) | 17°C (63°F) | 21°C (71°F) | 24°C (76°F) | 25°C (78°F) | 26°C (79°F) | 23°C (74°F) | 17°C (64°F) | 12°C (53°F) | 8°C (47°F) |
| Mean minimum | -2°C (29°F) | -1°C (30°F) | 5°C (41°F) | 9°C (48°F) | 15°C (59°F) | 21°C (71°F) | 22°C (72°F) | 23°C (73°F) | 18°C (64°F) | 6°C (43°F) | 3°C (38°F) | 1°C (34°F) |
| Minimum | -6°C (22°F) | -11°C (12°F) | -1°C (31°F) | 7°C (45°F) | 11°C (52°F) | 19°C (67°F) | 20°C (68°F) | 19°C (67°F) | 12°C (55°F) | 3°C (38°F) | -3°C (27°F) | -3°C (27°F) |
Compare temperature, precipitation, sunshine, UV index in Santa Maria, Mexico with other places around the world.
Santa Maria usually has the most precipitation in May, September and October, with an average of 7 rainy days and 97 mm (3.8 inches) of precipitation per month. The driest months in Santa Maria are January, November and December. On average, 20 mm (0.8 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 25 (1.0) | 28 (1.1) | 29 (1.1) | 42 (1.7) | 86 (3.4) | 43 (1.7) | 36 (1.4) | 28 (1.1) | 146 (5.8) | 60 (2.4) | 15 (0.6) | 21 (0.8) |
| Average precipitation days (≥ 1 mm) | 3 | 5 | 4 | 4 | 10 | 6 | 5 | 4 | 7 | 6 | 3 | 3 |
The sunniest months in Santa Maria are June, July and August, when the sun shines an average of 11 hours 15 minutes a day. Least sunny months in Santa Maria: January, February and December receive an average of 6 hours 55 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 185 | 209 | 249 | 271 | 297 | 336 | 356 | 342 | 288 | 260 | 235 | 235 |
| Mean daily daylight hours | 10h 29m | 11h 9m | 12h 0m | 12h 53m | 13h 37m | 13h 58m | 13h 47m | 13h 8m | 12h 17m | 11h 24m | 10h 39m | 10h 16m |
Santa Maria experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 12 - 12, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Santa Maria UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 12 | 11 | 9 | 6 | 5 |