Het weer in Seattle in augustus

Seattle in augustus: warm, droog, met schone lucht — een van de beste maanden om te gaan.

Bijgewerkt september 2026 · klimaatnormalen uit de ERA5-heranalyse

Seattle🇺🇸 Verenigde Staten · Pacific Northwest · Stad95
  1. 52jan
  2. 58feb
  3. 67mrt
  4. 77apr
  5. 85mei
  6. 92jun
  7. 97jul
  8. 95aug
  9. 89sep
  10. 72okt
  11. 57nov
  12. 49dec

#2 van 12 maanden in Seattle · #22 van 1413 bestemmingen om te bezoeken in augustus · comfort 95/100 (tier S)

Dagen
25°C
Nachten
15°C
Natte dagen
2
Zon
11.4 h
Luchtvochtigheid
67%
Daglicht
14 h
Seattle, Verenigde Staten
Foto: Stephen Leonardi · Pexels

Reizigersnotities over Seattle in augustus

Seattle-forum threads on August are almost giddy about the weather - this and the two months around it are the reliably dry, sunny stretch of the year, with posters calling a soggy day genuinely rare and temperatures running warm without the humidity that makes other cities miserable in summer. The one recurring caveat has nothing to do with rainfall: more than one thread flags wildfire smoke as the real risk, a haze that can roll in and ruin an otherwise perfect week with no warning. Cruise-ship crowds pack Pike Place Market and the Space Needle on port days. The record backs the dry read completely: 25.2C days, 14.7C nights, just 12mm total across 1.6 days, 11.4 hours of sun and an AQI of 44 - though that AQI can spike hard on a bad smoke day, which the average doesn't show.
PikePlaceAugustRegular · augustus · 3 dagen geleden · Lees verder op Tripadvisor ↗

Andere maanden in Seattle

Regulars describe this as the most variable month of the year here, unlike the more settled fall and winter, with two genuinely distinct outcomes possible on any given day - sunny and into the low 70s Fahrenheit, or overcast with highs stuck in the upper 50s to low 60s. Our row backs the mild, changeable average across that range, 19.1C over 9.5C nights, with 34mm of rain across 5.3 days. Regulars are consistent this is still a genuinely good time to visit, flowers in full bloom and springlike energy throughout the city, with layering the standard advice given how unpredictable a specific day can turn out. The record: humidity 74 percent, 10.8 hours of sun, a 12.6 kph wind and AQI 44.
SeventiesAndSunnyOrSixtiesAndOvercast · mei · 3 dagen geleden · Lees verder op Tripadvisor ↗
Regulars call this one of the city's best-looking months on paper, and are specific about why: the rains that define this region typically hold off until mid-October, and the first week of the month is often the driest and warmest stretch, with the back half cooling off a little as it goes. Our row backs the shift, 21.4C over 12.3C nights, with 35.5mm of rain across 5.6 days - a real total, but light next to what regulars describe arriving a month later. Evenings call for a light jacket or sweatshirt once the sun goes down. The one caveat some years bring is wildfire smoke drifting in from regional fires, not present every September but enough that regulars mention checking air quality before a trip built around outdoor views. The record: 9.5 hours of sun, a 12.3 kph wind and AQI 40.
FirstWeekDriestSecondHalfCooler · september · 3 dagen geleden · Lees verder op Tripadvisor ↗
Juneuary is the local word for the version of this month that feels like January, and the local claim is that summer does not start until the 5th of July - the same joke the Portland board tells, two hundred kilometres south. The instruction that follows is precise: the 30th of June is a different month from the 1st, so come at the end. Our row is kinder than the nickname. Rain is 29.5mm across 5.1 days, and there are 11.6 hours of sun inside 15.9 of daylight, so the grey is brief showers between sun breaks rather than a ceiling. What June lacks is warmth - 21.6C by day, 12C at night. The record: humidity 71 percent, a 12.5 kph wind and AQI 39.
JuneuaryOrNot · juni · 3 dagen geleden · Lees verder op Tripadvisor ↗
Seattle forum threads describe February as genuinely mixed - some stretches bring drizzly, overcast, grey days typical of the region's wet season (which runs roughly mid-October through April), while other years bring a welcome week or so of milder, lighter-sun weather that winter-weary locals specifically look forward to. Snow chances were described as relatively low by this point in winter, with January and early February the more likely window for any accumulation. One consistent tip from posters familiar with the wider region: the northern Olympic Peninsula tends to run drier and sunnier than Seattle proper in February, a worthwhile alternative for anyone chasing better odds of sun.
PugetSoundRegular · februari · 5 dagen geleden · Lees verder op Tripadvisor ↗

De notities voor het hele jaar staan op het overzicht van Seattle. Voeg je eigen notitie toe vanaf de kaart van Seattle.

Klimaatnormalen Seattle — augustus

Middagtemperatuur25°C / 77°F🌤 warm
Minimum ’s nachts15°C / 58°F
Gevoelstemperatuur (max)25°C / 77°F
Neerslag12 mm / 0.5 in☀️ droog
Regendagen2 dagen
Luchtvochtigheid67%💧 vochtig
Dauwpunt12°C / 53°F
Zon11.4 u/dag
Daglicht14.2 u
Wind12 km/h / 7 mph
Luchtkwaliteit (US AQI)44🍃 goed

Maandgemiddelden uit de ERA5-heranalyse. AQI is de gemiddelde Amerikaanse luchtkwaliteitsindex voor de maand.

Drukte in Seattle in augustus

Hoe druk de plek zelf is — school- en massavakanties, de maanden die een redacteur markeerde, en hoe gewild het weer ze maakt. Nooit onderdeel van de comfortscore.

TopdrukteMount Rainier wildflowers, Seafair, Summer break in Verenigde Staten(geschat)

JFMAMJJASOND

TopdrukteDrukTussenseizoenRustig

Beste maanden voor het weer in Seattle

Gerangschikt op de eigen klimaatcomfortscore van deze bestemming door het jaar heen — iets anders dan hoe druk het er wordt (zie Drukte hierboven).

Beste weerHet weer in Seattle piekt van juni tot augustus, op zijn best rond juli.

augustus omvat Salmon at the Ballard Locks.

JFMAMJJASOND

Beste weerRedelijk weerZwaarste weer

Wat er speelt in Seattle in augustus

Terugkerende seizoensevenementen, natuurspektakels, sluitingen en feestdagen — gecureerd en met bron.

  • Natuur

    Salmon at the Ballard Locks

    15 jun – 20 sep · meestalDierenseizoen

    Sockeye run through the fish ladder in early summer, chinook and coho into September, and the viewing windows below the locks are free and busy. Numbers vary wildly year to year. Bron ↗

  • Seizoen

    The dry months

    5 jul – 15 sep · meestalDroog seizoen

    The rain effectively stops after the Fourth of July and holds off until well into September. Everything outdoors in this city is scheduled around those ten weeks.

  • Natuur

    Mount Rainier wildflowers

    15 jul – 20 aug · meestalWilde bloemen & bloeiDruk

    Paradise and Sunrise flower for about a month once the snowpack finally clears, usually from mid-July. Timed entry applies to the park in summer and the meadows are strictly stay-on-the-path.

  • Festival

    Seafair

    28 jul – 9 aug · meestalRaceweekendDrukSluitingen

    Hydroplane racing on Lake Washington and the Blue Angels overhead on the first weekend of August. The I-90 bridge closes for the air show and the whole east side plans around it. Bron ↗

  • Risico

    Wildfire smoke

    1 aug – 20 sep · meestalRookseizoen

    Late summer smoke from fires in eastern Washington, Oregon or British Columbia settles into the basin and can hold for days. It is the one thing that spoils the best weather of the year here. Bron ↗

Wat er in augustus wereldwijd speelt →

Vlakbij, en er is iets te doen

Binnen 300 km van Seattle — een dagtrip of een kort ritje — met deze maand iets te doen. Nooit onderdeel van de comfortscore.

Waar ligt Seattle?

Kaart laden…

Seattle in augustus — veelgestelde vragen

Is augustus een goede tijd om Seattle te bezoeken?
Seattle in augustus: warm, droog, met schone lucht — een van de beste maanden om te gaan. Het staat op plek #2 van 12 maanden voor Seattle op de comfortscore van SeasonMap (95/100).
Hoe is het weer in Seattle in augustus?
In augustus heeft Seattle gemiddeld een dagmaximum van 25.2°C en een minimum van 14.7°C, met ongeveer 11.5 mm regen over zo’n 1.6 regendagen.
Hoe is de luchtkwaliteit in Seattle in augustus?
Seattle heeft in augustus een gemiddelde Amerikaanse luchtkwaliteitsindex van ongeveer 44.

Binnen 300 km: Olympic National Park's Subalpine wildflowers rond 20 jun – 10 aug en Victoria, BC's Whale watching season rond 1 mei – 15 okt.

Weer in Seattle in augustus: 25°C, 2 regendagen, 11 u zon | SeasonMap