Santa Rosa

What is the climate like in Santa Rosa?

Santa Rosa is comfortable to visit year-round; trip comfort peaks in December (8.2/10). Santa Rosa is warmest in January, when daily highs average 87°F (31°C), and coolest in July, when lows fall to about 38°F (3°C). The wettest month is typically March and the driest is July; the year sees roughly 24 in (613 mm) of precipitation.

• Best time to visitYear-round — comfort peaks in December (8.2/10)
• Warmest monthJanuary — average high 87°F (31°C)
• Coolest monthJuly — average low 38°F (3°C)
• Wettest monthMarch (3.6 in (92 mm))
• Driest monthJuly (0.6 in (16 mm))
• Annual precipitation24 in (613 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromSanta Rosa Aero, 6 km away (1951-2025)