Climate almanac
Gustine
California, United States · 37.26°, -121.00°
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)