Climate almanac
Nacozari Viejo
Sonora, Mexico · 30.40°, -109.65°
What is the climate like in Nacozari Viejo?
The best time to visit Nacozari Viejo is typically February – June, with trip comfort peaking in May (9.1/10). Nacozari Viejo is warmest in June, when daily highs average 97°F (36°C), and coolest in January, when lows fall to about 38°F (3°C). The wettest month is typically July and the driest is May; the year sees roughly 16 in (407 mm) of precipitation.
- Best time to visitFebruary – June — comfort peaks in May (9.1/10)
- Warmest monthJune — average high 97°F (36°C)
- Coolest monthJanuary — average low 38°F (3°C)
- Wettest monthJuly (3.6 in (91 mm))
- Driest monthMay (0.1 in (4 mm))
- Annual precipitation16 in (407 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromNacozari (smn), 5 km away (1943-2026)