Issaquah

What is the climate like in Issaquah?

The best time to visit Issaquah is typically July – August, with trip comfort peaking in July (8.3/10). Issaquah is warmest in August, when daily highs average 77°F (25°C), and coolest in December, when lows fall to about 36°F (2°C). The wettest month is typically December and the driest is July; the year sees roughly 66 in of precipitation.

• Best time to visitJuly – August — comfort peaks in July (8.3/10)
• Warmest monthAugust — average high 77°F (25°C)
• Coolest monthDecember — average low 36°F (2°C)
• Wettest monthDecember (9.7 in)
• Driest monthJuly (1.0 in)
• Annual precipitation66 in