Issaquah, us-Washington State, USA Weather Information
Local Time
2026-03-12 10:13:21 Pacific Standard TimeWeather in the past year
Sun & Astronomy
In Issaquah, us-Washington State, USA, today's sunrise time is 07:22, sunset time is 19:12, nautical twilight begins at 06:17, nautical twilight ends at 20:17, astronomical twilight begins at 05:41, astronomical twilight ends at 20:53.
Temperature Analysis
In Issaquah, us-Washington State, USA region, the lowest temperature occurs in January 2025, with an average temperature of about 3.4°C.
The highest temperature occurs in August 2025, with a maximum temperature of up to 20.2°C.
Based on historical data, the average temperature in January is 3.4°C, February is 3.8°C, March is 8.2°C, April is 10.4°C, May is 12.9°C, June is 16.6°C, July is 19.8°C, August is 20.2°C, September is 17.2°C, October is 10.8°C, November is 9.2°C, December is 7.4°C.
Wind Analysis
In Issaquah, us-Washington State, USA region, the lowest wind speed occurs in January 2025, with an average wind speed of about 26.4 km/h.
The highest wind speed occurs in December 2025, with a maximum wind speed of up to 44.8 km/h.
Based on historical data, the average wind speed in January is 26.4 km/h, February is 37.9 km/h, March is 40.1 km/h, April is 32.7 km/h, May is 31.4 km/h, June is 27.3 km/h, July is 28.5 km/h, August is 28.6 km/h, September is 27 km/h, October is 35.6 km/h, November is 37.2 km/h, December is 44.8 km/h.
Sunshine Duration Analysis
In Issaquah, us-Washington State, USA region, the lowest sunshine duration occurs in December 2025, with an average sunshine duration of about 2.4 hours.
The highest sunshine duration occurs in July 2025, with a maximum sunshine duration of up to 12.6 hours.
Based on historical data, the average sunshine duration in January is 5.4 hours, February is 4.7 hours, March is 5.5 hours, April is 9.2 hours, May is 10.1 hours, June is 11.1 hours, July is 12.6 hours, August is 10.9 hours, September is 9.3 hours, October is 6.3 hours, November is 3.5 hours, December is 2.4 hours.
Precipitation Analysis
In Issaquah, us-Washington State, USA region, the lowest precipitation occurs in July 2025, with an average precipitation of about 0.1 mm.
The highest precipitation occurs in December 2025, with a maximum precipitation of up to 12.9 mm.
Based on historical data, the average precipitation in January is 2.4 mm, February is 6.3 mm, March is 6.1 mm, April is 3.6 mm, May is 3.5 mm, June is 0.8 mm, July is 0.1 mm, August is 2.1 mm, September is 1.2 mm, October is 5.8 mm, November is 7.3 mm, December is 12.9 mm.