Seattle weather by month
Average highs run from 47°F in January to 76°F in July, and January nights average 37°F. It gets 38 inches of rain and melted snow a year and 4 inches of snow. The most comfortable months are May to September.
Best time to visit Seattle
For comfortable weather, go in May to September. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 47°F | 37°F | 5.1 in | 0.9 in | 12 | 0 | 7 | cold |
| February | 50°F | 37°F | 3.5 in | 1.0 in | 9 | 0 | 6 | cool |
| March | 54°F | 39°F | 3.9 in | 0.0 in | 11 | 0 | 2 | cool |
| April | 59°F | 43°F | 3.0 in | 0.0 in | 9 | 0 | 0 | cool |
| May | 65°F | 48°F | 2.2 in | 0.0 in | 6 | 0 | 0 | mild |
| June | 70°F | 53°F | 1.6 in | 0.0 in | 5 | 0 | 0 | mild |
| July | 77°F | 57°F | 0.8 in | 0.0 in | 2 | 1 | 0 | warm |
| August | 77°F | 57°F | 1.0 in | 0.0 in | 3 | 1 | 0 | warm |
| September | 71°F | 53°F | 1.7 in | 0.0 in | 5 | 0 | 0 | mild |
| October | 61°F | 47°F | 3.7 in | 0.0 in | 9 | 0 | 0 | cool |
| November | 52°F | 41°F | 5.9 in | 0.2 in | 12 | 0 | 3 | cool |
| December | 47°F | 37°F | 5.6 in | 1.7 in | 12 | 0 | 7 | cold |
| Year | 61°F avg | 46°F avg | 37.8 in | 3.8 in | 95 | 2 | 25 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station Seattle Sand Pt WSFO, WA (USW00094290), 6.6 miles from the city center. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in Seattle
The shortest day is December 21, with 8h 25m of daylight; the longest is June 21, with 15h 59m. The earliest sunset comes around December 6 (4:17 pm) and the latest around June 19 (9:10 pm). The sun sets after 8 pm on 133 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:52 am | 4:45 pm | 8h 52m |
| February | 7:14 am | 5:32 pm | 10h 18m |
| March | 7:22 am | 7:14 pm | 11h 53m |
| April | 6:20 am | 7:59 pm | 13h 39m |
| May | 5:31 am | 8:40 pm | 15h 08m |
| June | 5:11 am | 9:08 pm | 15h 57m |
| July | 5:27 am | 9:02 pm | 15h 35m |
| August | 6:05 am | 8:20 pm | 14h 15m |
| September | 6:47 am | 7:20 pm | 12h 34m |
| October | 7:28 am | 6:20 pm | 10h 52m |
| November | 7:15 am | 4:32 pm | 9h 17m |
| December | 7:51 am | 4:17 pm | 8h 27m |
Calculated for 2026 at the center of Seattle with NOAA's solar equations, in local clock time (Pacific Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is Seattle getting warmer?
The last 10 years averaged 1.7°F warmer than the 20th century. See the climate stripes for Seattle.Frequently asked questions
What is the warmest month in Seattle?
August is the warmest month, with an average high of 77°F and an average low of 57°F (NOAA 1991-2020 normals).
What is the coldest month in Seattle?
February is the coldest, with average lows of 37°F and highs of 50°F.
What is the rainiest month in Seattle?
November gets the most precipitation, 5.9 inches on average. July is the driest at 0.8 inches.
Does it snow in Seattle?
Yes. Seattle averages 4 inches of snow a year.
When is the best time to visit Seattle?
For comfortable weather, May to September. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to Seattle?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full Seattle profile.
Compare the weather: Seattle vs Bellevue, Seattle vs Kirkland, Seattle vs Redmond, Seattle vs Renton.