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Ideal weather days in Seattle

The best time to visit Seattle for warm, dry weather is June, July and August, with 24 to 28 such days a month.

How many days here suit you?

Set your ideal day. Each day measured at Seattle's weather station in 2023–2025 is checked against it.

18–33°C
≤ 1 mm
≤ 20 km/h
Any sky
142ideal days a year39% of the year

They're most common in June, July and August.

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Your ideal days in Seattle, month by month

  1. 0Jan: 0 of 31 days
  2. 0Feb: 0 of 28 days
  3. 3Mar: 3 of 31 days
  4. 9Apr: 9 of 30 days
  5. 21May: 21 of 31 days
  6. 24Jun: 24 of 30 days
  7. 28Jul: 28 of 31 days
  8. 25Aug: 25 of 31 days
  9. 21Sep: 21 of 30 days
  10. 12Oct: 12 of 31 days
  11. 0Nov: 0 of 30 days
  12. 0Dec: 0 of 31 days

Why the other days don't count

  • Too cold199
  • Too wet114
  • Too windy22
  • Too hot4

A day can fail more than one test.

Warm and dry, beach and mild days

With the Warm & dry preset (a high of 18–33 °C, no more than 1 mm of rain, wind under 20 km/h), Seattle averaged 142 days a year in 2023–2025. Every number here is counted from real measured days in the United States, not from climate averages.

Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are most common in July (up to 16 a month, 44 a year). Mild, still days (16–26 °C, light wind) are most common in May, June and September (up to 12 a month, 72 a year).

What spoils the other days

Most of the days that don't count are too cold (a high under 18 °C): 199 a year, mostly in November to April. Another 114 are wet (more than 1 mm of rain), mostly in November to April. A day can fail more than one test.

Seattle weather, month by month

MonthTypical highRain daysWindy daysClear daysWarm & dry days
January9 °C 47 °F15140 of 31
February10 °C 50 °F15420 of 28
March12 °C 53 °F17433 of 31
April15 °C 59 °F12159 of 30
May20 °C 68 °F71621 of 31
June23 °C 73 °F41724 of 30
July29 °C 83 °F101428 of 31
August26 °C 79 °F501225 of 31
September22 °C 71 °F100521 of 30
October18 °C 64 °F131412 of 31
November12 °C 53 °F18430 of 30
December11 °C 51 °F18510 of 31
Year1332265142 of 365

Typical high is the median daily maximum. A rain day has 1 mm or more; a windy day a mean wind above 20 km/h; a clear day a daytime cloud cover of 2/8 or less on average (9:00–17:00). Days are averaged over 2023–2025 and scaled to the length of each month.

Year by year

Questions

When is the best time to visit Seattle for good weather?

The best time to visit Seattle for warm, dry weather is June, July and August, with 24 to 28 such days a month. Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are most common in July (up to 16 a month, 44 a year). Counted from measured days at Seattle Tacoma Airport station, 2023–2025.

Does it rain a lot in Seattle?

On average 133 days a year had 1 mm of rain or more in 2023–2025. The wettest month was November (18 rain days), the driest July (1).

How many sunny days does Seattle get a year?

About 65 days a year had mostly clear skies (daytime cloud cover of 2/8 or less on average, 9:00–17:00), most of them in July (14).

How warm does Seattle get?

The median daily high ranged from 9 °C (47 °F) in January to 29 °C (83 °F) in July.

Nearby

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Where is the best climate in the United States?

Open Seattle on the map Set your own temperature, rain and wind limits.

Source: Seattle Tacoma Airport weather station (72793024233), 18 km from the centre of Seattle, 113 m above sea level. Daily records from NOAA's Global Surface Summary of the Day, 2023–2025; 89% of days have a complete record. A single station may not represent every part of a city, and three years is a short record.