Issaquah Weather in January

Thinking of visiting Issaquah in January? Expect low temperatures reaching 7°C (45°F) during the day, dropping to 2°C (36°F) at night. Heavy showers are common during the rainy season.

Rainfall in Issaquah in January

Issaquah is in the rainy season in January, with rain on around 21 days and an average of 211 mm (8.3 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.

Temperature in Issaquah in January

If you're visiting Issaquah in January, expect highs of 7°C (45°F) and overnight lows around 2°C (36°F). January is typically considered a winter month. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. With lows around 2°C (36°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Issaquah in January

This month is characterized by fewer sunny days, with about 70 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

Wind Speed in Issaquah in January

January has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.

January in Issaquah can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.