Pleasanton

What is the climate like in Pleasanton?

The best time to visit Pleasanton is typically April – October, with trip comfort peaking in July (9.4/10). Pleasanton is warmest in August, when daily highs average 86°F (30°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 18 in (464 mm) of precipitation.

• Best time to visitApril – October — comfort peaks in July (9.4/10)
• Warmest monthAugust — average high 86°F (30°C)
• Coolest monthDecember — average low 43°F (6°C)
• Wettest monthJanuary (4.0 in (102 mm))
• Driest monthJuly (0.0 in (0 mm))
• Annual precipitation18 in (464 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromLivermore, 11 km away (1903-2026)