Sonora weather in December
December is one of the best months to visit Sonora: highs of 23°C (73°F) and about 12 mm (0.5 in) of rain on average. Nights average 9°C (47°F) and cloud cover 32% (NASA POWER, 2001–2025 averages). It is the 4th driest month of the year and the coolest. Compared with November, it is cooler and drier; January brings highs of 24°C (74°F) and 16 mm (0.6 in) of rain.
Figures are long-term averages for Hermosillo, the largest city in Sonora. See below for other places.
Is December a good time to visit Sonora?
best month Weather score 92/100.
Yes. December is one of the best months for weather in Sonora.
Does it rain a lot in Sonora in December?
No, it is usually dry: about 12 mm (0.5 in) falls in an average December. It is the 4th driest month of the year.
How warm is Sonora in December?
Days average 23°C (73°F) and nights 9°C (47°F).
Sonora weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 24°C (74°F) | 9°C (47°F) | 16 mm | 32% | best |
| February | 25°C (77°F) | 9°C (49°F) | 13 mm | 36% | best |
| March | 29°C (84°F) | 12°C (53°F) | 9 mm | 30% | best |
| April | 32°C (89°F) | 14°C (58°F) | 2 mm | 26% | best |
| May | 35°C (96°F) | 18°C (64°F) | 1 mm | 17% | best |
| June | 40°C (103°F) | 23°C (74°F) | 12 mm | 24% | least pleasant |
| July | 37°C (99°F) | 26°C (79°F) | 110 mm | 59% | least pleasant |
| August | 37°C (98°F) | 26°C (78°F) | 99 mm | 51% | least pleasant |
| September | 36°C (97°F) | 23°C (74°F) | 80 mm | 33% | fair |
| October | 33°C (91°F) | 18°C (65°F) | 14 mm | 20% | best |
| November | 28°C (82°F) | 13°C (56°F) | 15 mm | 28% | best |
| December | 23°C (73°F) | 9°C (47°F) | 12 mm | 32% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Sonora in December
Weather can differ a lot within Sonora: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Hermosillo | 23°C (73°F) | 9°C (47°F) | 12 mm | best |
| Ciudad Obregón | 25°C (76°F) | 12°C (53°F) | 8 mm | best |
| Nogales | 16°C (61°F) | 2°C (36°F) | 25 mm | fair |
| San Luis Río Colorado | 19°C (67°F) | 6°C (42°F) | 10 mm | best |
| Heroica Guaymas | 24°C (74°F) | 11°C (51°F) | 8 mm | best |
| Navojoa | 25°C (77°F) | 12°C (53°F) | 12 mm | best |
| Agua Prieta | 14°C (56°F) | -1°C (31°F) | 21 mm | least pleasant |
| Puerto Peñasco | 19°C (66°F) | 10°C (51°F) | 15 mm | fair |
| Heroica Caborca | 20°C (68°F) | 6°C (43°F) | 17 mm | best |
| Empalme | 24°C (74°F) | 11°C (51°F) | 8 mm | best |
| Esperanza | 25°C (76°F) | 12°C (53°F) | 8 mm | best |
| Cananea | 14°C (58°F) | 0°C (31°F) | 22 mm | least pleasant |