Wetter in Seattle im Juli
Juli in Seattle: warm, trocken, mit sauberer Luft – einer der besten Reisemonate.
Aktualisiert: September 2026 · Klimanormalwerte aus der ERA5-Reanalyse
Platz 1 von 12 Monaten in Seattle · Platz 2 von 1413 Reisezielen im Juli · Komfort 97/100 (Stufe S)
- Tagsüber
- 25°C
- Nachts
- 14°C
- Regentage
- 1
- Sonne
- 12.6 h
- Luftfeuchte
- 66%
- Tageslicht
- 16 h

Notizen von Reisenden zu Seattle im Juli
Seattle's reputation for rain simply doesn't apply in July, and the forum is emphatic about it: the dry, sunny stretch runs from around mid-June into October, with July and August the warmest and least wet months of the year. Regulars pin the switch to roughly 8 July, after which reliably warm, sunny weather sets in, and single out the last week of July and first week of August as the best of it. The real averages back them up — highs around 25°C and rain on only about four days in the whole month.
Andere Monate 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.
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.
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.
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.
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Klimanormalwerte Seattle – Juli
Monatliche Durchschnittswerte aus der ERA5-Reanalyse. Der AQI ist der mittlere US-Luftqualitätsindex des Monats.
Andrang in Seattle im Juli
Wie voll der Ort selbst ist – Schul- und Massenferien, die Monate, die die Redaktion markiert hat, und wie begehrt das Wetter sie macht. Fließt nie in den Komfort-Score ein.
HochbetriebIndependence Day, Mount Rainier wildflowers, Summer break in Vereinigte Staaten(geschätzt)
HochbetriebViel losZwischensaisonRuhig
Die besten Monate fürs Wetter in Seattle
Gerankt nach dem Klimakomfort-Score dieses Reiseziels übers Jahr – etwas anderes als der Andrang (siehe Andrang oben).
Bestes WetterDie beste Wetterphase in Seattle reicht von Juni bis August, am schönsten ist es um den Juli.
Im Juli dabei: Salmon at the Ballard Locks.
Bestes WetterOrdentliches WetterSchwierigstes Wetter
Was ist los in Seattle im Juli
Wiederkehrende saisonale Events, Naturschauspiele, Schließungen und Feiertage – kuratiert und mit Quelle.
- Saison
Junuary
25. Mai – 4. Juli · meistNebelsaisonRisikoThe local name for the grey, cool weeks that sit on the city between late May and the Fourth of July, when the marine layer refuses to lift and everyone insists summer starts later here.
- Natur
Salmon at the Ballard Locks
15. Juni – 20. Sep. · meistTiersaisonSockeye 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. Quelle ↗
- Feiertag
Independence Day
3.–5. JuliNationalfeiertagVollSchließungenThe Fourth of July is a federal holiday: banks and government offices close, fireworks draw large crowds to parks and waterfronts after dark, and roads and flights are busy over the long weekend. Claim a viewing spot early. Quelle ↗
- Saison
The dry months
5. Juli – 15. Sep. · meistTrockenzeitThe 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.
- Natur
Mount Rainier wildflowers
15. Juli – 20. Aug. · meistWildblumen & BlüteVollParadise 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. Juli – 9. Aug. · meistMotorsport-WochenendeVollSchließungenHydroplane 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. Quelle ↗
In der Nähe ist was los
Im Umkreis von 300 km um Seattle – ein Tagesausflug oder ein kurzer Abstecher – mit etwas, das diesen Monat los ist. Fließt nie in den Komfort-Score ein.
Wo liegt Seattle?
Seattle im Juli – häufige Fragen
- Ist der Juli eine gute Reisezeit für Seattle?
- Juli in Seattle: warm, trocken, mit sauberer Luft – einer der besten Reisemonate. Beim Komfort-Score von SeasonMap liegt der Monat für Seattle auf Platz 1 von 12 (97/100).
- Wie ist das Wetter in Seattle im Juli?
- Im Juli liegen die Tageshöchstwerte in Seattle im Schnitt bei 25.2°C und die Tiefstwerte bei 14.3°C, mit rund 7.3 mm Regen an etwa 1.3 Regentagen.
- Wie ist die Luftqualität in Seattle im Juli?
- Seattle hat im Juli einen mittleren US-Luftqualitätsindex (AQI) von etwa 35.
Im Umkreis von 300 km: Olympic National Park: Subalpine wildflowers, etwa 20. Juni – 10. Aug. und Victoria, BC: Whale watching season, etwa 1. Mai – 15. Okt..