Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Santa Rosa (Santa Barbara) features a humid subtropical climate (Cwa).Temperatures typically range between 13 °C (56 °F) and 19 °C (66 °F) through the year, but rarely can drop to 1 °C (34 °F) or can rise to as high as 30 °C (86 °F).The average annual precipitation amounts to about 1890 mm (74.4 inches) and receives 185 rainy days on the 1 mm (0.04 inches) threshold annually.Santa Rosa (Santa Barbara) enjoys an average of 3449 hours of sunshine throughout the year, and daylight varies from 10 hours 58 minutes to 13 hours 16 minutes per day.
The warmest months in Santa Rosa (Santa Barbara) are April, May and June, with daily mean temperatures ranging from 18 to 19 °C (64 - 66 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 13 to 14 °C (56 - 58 °F) throughout the day. On average each year, Santa Rosa (Santa Barbara) experiences 63 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 26°C (79°F) | 27°C (81°F) | 28°C (83°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 26°C (80°F) | 27°C (80°F) | 26°C (80°F) | 26°C (80°F) | 26°C (80°F) | 25°C (78°F) |
Mean maximum | 25°C (77°F) | 26°C (79°F) | 27°C (81°F) | 28°C (82°F) | 29°C (84°F) | 27°C (82°F) | 25°C (78°F) | 26°C (79°F) | 26°C (78°F) | 25°C (78°F) | 25°C (78°F) | 24°C (76°F) |
Average high | 21°C (70°F) | 22°C (72°F) | 24°C (75°F) | 25°C (78°F) | 26°C (78°F) | 23°C (74°F) | 23°C (73°F) | 23°C (73°F) | 23°C (73°F) | 23°C (73°F) | 23°C (73°F) | 21°C (70°F) |
Daily mean | 13°C (56°F) | 14°C (58°F) | 16°C (62°F) | 18°C (64°F) | 19°C (66°F) | 18°C (65°F) | 17°C (63°F) | 17°C (64°F) | 17°C (63°F) | 17°C (63°F) | 15°C (60°F) | 14°C (57°F) |
Average low | 7°C (45°F) | 8°C (46°F) | 9°C (48°F) | 10°C (51°F) | 12°C (54°F) | 14°C (57°F) | 13°C (56°F) | 14°C (57°F) | 13°C (56°F) | 12°C (54°F) | 9°C (49°F) | 7°C (45°F) |
Mean minimum | 3°C (38°F) | 4°C (40°F) | 6°C (43°F) | 7°C (45°F) | 9°C (48°F) | 12°C (54°F) | 11°C (53°F) | 12°C (54°F) | 11°C (53°F) | 9°C (49°F) | 6°C (43°F) | 4°C (39°F) |
Minimum | 2°C (36°F) | 1°C (34°F) | 5°C (41°F) | 6°C (42°F) | 7°C (45°F) | 11°C (51°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 7°C (45°F) | 4°C (39°F) | 2°C (35°F) |
Compare temperature, precipitation, sunshine, UV index in Santa Rosa (Santa Barbara), Michoacán, Mexico with other places around the world.
Santa Rosa (Santa Barbara) usually has the most precipitation in July, August and September, with an average of 29 rainy days and 359 mm (14.1 inches) of precipitation per month.The driest months in Santa Rosa (Santa Barbara) are January, April 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) | 34 (1.3) | 32 (1.2) | 17 (0.7) | 128 (5.0) | 288 (11.4) | 361 (14.2) | 383 (15.1) | 332 (13.1) | 199 (7.8) | 73 (2.9) | 19 (0.7) |
Average precipitation days (≥ 1 mm) | 5 | 4 | 8 | 4 | 15 | 27 | 30 | 30 | 28 | 21 | 9 | 4 |
The sunniest months in Santa Rosa (Santa Barbara) are March, April and May, when the sun shines an average of 10 hours 36 minutes a day.Least sunny months in Santa Rosa (Santa Barbara): January, February and September receive an average of 8 hours 35 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 237 | 273 | 320 | 323 | 331 | 276 | 287 | 281 | 262 | 284 | 281 | 289 |
Mean daily daylight hours | 11h 5m | 11h 30m | 12h 2m | 12h 35m | 13h 2m | 13h 16m | 13h 8m | 12h 44m | 12h 12m | 11h 40m | 11h 12m | 10h 58m |
Santa Rosa (Santa Barbara) experiences the highest level of ultraviolet (UV) radiation in April, June 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 (Santa Barbara) UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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UV Index (month maximum) | 10 | 12 | 14 | 15 | 14 | 15 | 14 | 14 | 14 | 12 | 10 | 9 |