When to visit
Issaquah?

Discover the best time of year, based on historical climate, temperature, and precipitation.

Issaquah
State of Washington · United States of America

The best weather in Issaquah is from July, August, September.consistent weather climate

Climate score
June
72

Excellent climate

🌥Mild

Temperature
11–22°C
Cool nights
Feels like
10–23°C
Comfortable
Precipitation
95mm
Light rain · 14 days
Sunshine
10.5h
Mostly cloudy
Humidity (%)
76%
Comfortable
Annual Climate Analysis
Temperature, Rain & Feels Like
Rain
Actual Temp
Feels Like
-10°10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
Monthly Overview
Score612284067729492835987
ClimateColdColdColdColdCool & rainyMildPleasantPleasantMildCool & rainyColdCold
Temperature3–9°C2–9°C3–12°C4–15°C8–19°C11–22°C14–27°C14–27°C12–23°C8–17°C4–11°C3–8°C
Feels like-1–6°C-1–6°C0–9°C2–13°C6–18°C10–23°C14–28°C14–28°C11–23°C7–16°C1–8°C-1–5°C
Precipitation252mm
25 days
167mm
20 days
132mm
19 days
122mm
18 days
111mm
16 days
95mm
14 days
18mm
5 days
35mm
6 days
97mm
10 days
148mm
15 days
252mm
21 days
245mm
23 days
Sunshine2.5h
☀︎ 28%
3.6h
☀︎ 35%
5.7h
☀︎ 48%
7.8h
☀︎ 57%
8.1h
☀︎ 54%
10.5h
☀︎ 66%
12.5h
☀︎ 81%
11.2h
☀︎ 79%
9.2h
☀︎ 73%
6.0h
☀︎ 56%
3.5h
☀︎ 38%
2.3h
☀︎ 26%
WindSE · 18 km/hSE · 16 km/hS · 14 km/hS · 15 km/hSW · 14 km/hSW · 13 km/hNW · 11 km/hW · 12 km/hSE · 12 km/hSE · 13 km/hSE · 16 km/hSE · 17 km/h
Humidity (%)83%82%80%76%77%76%69%71%78%83%83%84%
Day length8.9h10.3h11.9h13.7h15.1h15.9h15.5h14.2h12.5h10.8h9.3h8.5h

Frequently asked questions

What is the best time to visit Issaquah?

The best time to visit Issaquah is July, August, September, June, with temperatures between 11 °C and 27 °C. The best month is July. July is high season.

What is the weather like in Issaquah?

Issaquah has a climate with an overall score of 4.7/10. Annual temperatures range from 2 °C to 27 °C.

What is the hottest month in Issaquah?

The hottest month in Issaquah is July, with average highs of 27 °C and lows of 14 °C.

What is the rainiest month in Issaquah?

The rainiest month in Issaquah is January, with an average of 252 mm of precipitation.