Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Santa Rosa features a cold semi-arid climate (BSk).Temperatures typically range between 13 °C (55 °F) and 21 °C (71 °F) through the year, but rarely can drop to -3 °C (26 °F) or can rise to as high as 35 °C (94 °F).The average annual precipitation amounts to about 602 mm (23.7 inches) and receives 89 rainy days on the 1 mm (0.04 inches) threshold annually.Santa Rosa enjoys an average of 3591 hours of sunshine throughout the year, and daylight varies from 10 hours 50 minutes to 13 hours 24 minutes per day.
The warmest months in Santa Rosa are April, May and June, with daily mean temperatures ranging from 20 to 21 °C (68 - 71 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 13 to 15 °C (55 - 58 °F) throughout the day. On average each year, Santa Rosa experiences 182 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 27°C (82°F) | 31°C (87°F) | 33°C (92°F) | 34°C (93°F) | 35°C (94°F) | 34°C (93°F) | 31°C (88°F) | 32°C (89°F) | 29°C (85°F) | 29°C (84°F) | 29°C (84°F) | 27°C (81°F) |
Mean maximum | 26°C (79°F) | 29°C (85°F) | 31°C (88°F) | 32°C (90°F) | 33°C (92°F) | 32°C (89°F) | 29°C (85°F) | 30°C (86°F) | 28°C (83°F) | 28°C (82°F) | 27°C (81°F) | 26°C (79°F) |
Average high | 22°C (71°F) | 24°C (76°F) | 27°C (81°F) | 29°C (84°F) | 30°C (86°F) | 27°C (81°F) | 26°C (79°F) | 26°C (80°F) | 25°C (76°F) | 24°C (75°F) | 23°C (74°F) | 22°C (72°F) |
Daily mean | 13°C (55°F) | 15°C (60°F) | 18°C (64°F) | 20°C (68°F) | 21°C (71°F) | 20°C (68°F) | 19°C (67°F) | 20°C (67°F) | 18°C (65°F) | 17°C (63°F) | 15°C (58°F) | 13°C (55°F) |
Average low | 6°C (42°F) | 7°C (46°F) | 9°C (49°F) | 12°C (53°F) | 13°C (56°F) | 14°C (58°F) | 14°C (57°F) | 14°C (58°F) | 14°C (57°F) | 12°C (53°F) | 8°C (47°F) | 5°C (42°F) |
Mean minimum | -0°C (32°F) | 2°C (35°F) | 4°C (40°F) | 7°C (45°F) | 10°C (50°F) | 12°C (53°F) | 11°C (53°F) | 12°C (53°F) | 10°C (51°F) | 6°C (44°F) | 3°C (37°F) | -1°C (31°F) |
Minimum | -1°C (30°F) | 0°C (33°F) | 0°C (33°F) | 6°C (44°F) | 8°C (46°F) | 9°C (49°F) | 11°C (52°F) | 11°C (52°F) | 7°C (46°F) | 2°C (37°F) | -0°C (32°F) | -3°C (26°F) |
Compare temperature, precipitation, sunshine, UV index in Santa Rosa, Guanajuato, Mexico with other places around the world.
Santa Rosa usually has the most precipitation in June, July and September, with an average of 15 rainy days and 116 mm (4.6 inches) of precipitation per month.The driest months in Santa Rosa are January, April and December. On average, 8 mm (0.3 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 7 (0.3) | 10 (0.4) | 14 (0.5) | 9 (0.4) | 45 (1.8) | 120 (4.7) | 106 (4.2) | 77 (3.0) | 121 (4.8) | 63 (2.5) | 23 (0.9) | 7 (0.3) |
Average precipitation days (≥ 1 mm) | 2 | 3 | 3 | 2 | 7 | 14 | 14 | 12 | 17 | 10 | 4 | 1 |
The sunniest months in Santa Rosa are May, July and August, when the sun shines an average of 10 hours 44 minutes a day.Least sunny months in Santa Rosa: January, February and November receive an average of 8 hours 37 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 229 | 268 | 316 | 322 | 342 | 319 | 330 | 326 | 286 | 285 | 278 | 284 |
Mean daily daylight hours | 10h 58m | 11h 26m | 12h 1m | 12h 38m | 13h 9m | 13h 24m | 13h 16m | 12h 49m | 12h 13m | 11h 37m | 11h 5m | 10h 50m |
Santa Rosa experiences the highest level of ultraviolet (UV) radiation in April, May and September, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure.January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Santa Rosa UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 9 | 11 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 10 | 8 |