Climate almanac

Gustine

California, United States · 37.26°, -121.00°

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What is the climate like in Gustine?

The best time to visit Gustine is typically April – October, with trip comfort peaking in September (9.5/10). Gustine is warmest in July, when daily highs average 102°F (39°C), and coolest in December, when lows fall to about 43°F (6°C). The wettest month is typically January and the driest is July; the year sees roughly 13 in (340 mm) of precipitation.

  • Best time to visitApril – October — comfort peaks in September (9.5/10)
  • Warmest monthJuly — average high 102°F (39°C)
  • Coolest monthDecember — average low 43°F (6°C)
  • Wettest monthJanuary (3.4 in (87 mm))
  • Driest monthJuly (0.0 in (0 mm))
  • Annual precipitation13 in (340 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromNewman, 3 km away (1902-2026)