Issaquah, WA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Issaquah now
Loading the National Weather Service forecast…
Issaquah weather by the hour
Issaquah weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Issaquah.
This week in Issaquah
Sunrise, sunset and moon in Issaquah
What is the weather usually like in Issaquah?
Köppen climate classification, calculated from the 1991–2020 normals
- Augustwarmest month · 77°F average high
- Decembercoldest month · 36°F average low
- 34.7 inprecipitation per year · 881 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Issaquah: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station RENTON MUNI AP, WA US (USW00094248), adjusted for the elevation of Issaquah.
Issaquah weather month by month
Sunrise and sunset in Issaquah through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:49 AM | 4:46 PM | 8 h 56 min |
| February | 7:11 AM | 5:33 PM | 10 h 21 min |
| March | 7:18 AM | 7:15 PM | 11 h 56 min |
| April | 6:16 AM | 7:59 PM | 13 h 42 min |
| May | 5:28 AM | 8:40 PM | 15 h 12 min |
| June | 5:08 AM | 9:09 PM | 16 h 1 min |
| July | 5:24 AM | 9:03 PM | 15 h 38 min |
| August | 6:03 AM | 8:22 PM | 14 h 18 min |
| September | 6:44 AM | 7:22 PM | 12 h 37 min |
| October | 7:25 AM | 6:21 PM | 10 h 55 min |
| November | 7:12 AM | 4:33 PM | 9 h 21 min |
| December | 7:47 AM | 4:19 PM | 8 h 31 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Issaquah?
Issaquah has a warm-summer mediterranean climate. The warmest month is August, with an average high of 77°F (25°C), and the coldest is December, with average lows of 36°F (2°C).
It gets about 34.7 inches (881 mm) of precipitation a year. The wettest month is November and the driest is July.
The best time to visit Issaquah is June to September. At 108 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Issaquah
Weather in towns near Issaquah
Questions about the weather in Issaquah
What is the hottest month in Issaquah?
August, with an average high of 77°F (25°C).
What is the coldest month in Issaquah?
December, with an average low of 36°F (2°C).
How much does it rain in Issaquah?
About 34.7 inches (881 mm) a year; the wettest month is November.
Does it snow in Issaquah?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Issaquah?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Issaquah have?
Warm-summer mediterranean (Köppen Csb).
What is the weather like in Issaquah in November?
Highs average 52°F and lows 40°F, with about 5.6 inches of precipitation.
What time is sunrise in Issaquah?
Around 7:12 AM in mid-November, and sunset around 4:33 PM. Today’s exact times are shown above.
Where does this Issaquah weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Issaquah.
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