Climate almanac

Altar

Sonora, Mexico · 30.72°, -111.84°

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What is the climate like in Altar?

The best time to visit Altar is typically September – June, with trip comfort peaking in October (9.2/10). Altar is warmest in July, when daily highs average 103°F (39°C), and coolest in January, when lows fall to about 44°F (7°C). The wettest month is typically August and the driest is May; the year sees roughly 8.4 in (212 mm) of precipitation.

  • Best time to visitSeptember – June — comfort peaks in October (9.2/10)
  • Warmest monthJuly — average high 103°F (39°C)
  • Coolest monthJanuary — average low 44°F (7°C)
  • Wettest monthAugust (1.9 in (49 mm))
  • Driest monthMay (0.1 in (1 mm))
  • Annual precipitation8.4 in (212 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromAltar (obs), 0 km away (1949-2025)