Sunnyvale

What is the climate like in Sunnyvale?

The best time to visit Sunnyvale is typically May – October, with trip comfort peaking in July (9.3/10). Sunnyvale is warmest in August, when daily highs average 79°F (26°C), and coolest in December, when lows fall to about 44°F (7°C). The wettest month is typically January and the driest is July; the year sees roughly 27 in of precipitation.

• Best time to visitMay – October — comfort peaks in July (9.3/10)
• Warmest monthAugust — average high 79°F (26°C)
• Coolest monthDecember — average low 44°F (7°C)
• Wettest monthJanuary (6.0 in)
• Driest monthJuly (0.0 in)
• Annual precipitation27 in