Meteo Seattle in luglio
Seattle in luglio: caldo, asciutto, con aria pulita — uno dei mesi migliori per andarci.
Aggiornato: settembre 2026 · medie climatiche dalla rianalisi ERA5
1º mese su 12 a Seattle · 2º su 1413 tra le destinazioni da visitare in luglio · comfort 97/100 (tier S)
- Giorno
- 25°C
- Notte
- 14°C
- Giorni di pioggia
- 1
- Sole
- 12.6 h
- Umidità
- 66%
- Ore di luce
- 16 h

Note dei viaggiatori su Seattle in luglio
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.
Altri mesi a 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.
Le note valide tutto l'anno sono nella panoramica di Seattle. Aggiungi la tua nota dalla scheda di Seattle sulla mappa.
Medie climatiche di Seattle — luglio
Medie mensili dalla rianalisi ERA5. L'AQI è l'indice di qualità dell'aria USA medio del mese.
Folla a Seattle in luglio
Quanto è affollato il luogo in sé: vacanze scolastiche e ferie di massa, i mesi segnalati dalla redazione e quanto il clima li rende ambiti. Mai incluso nel punteggio di comfort.
Folla al massimoIndependence Day, Mount Rainier wildflowers, Summer break in Stati Uniti d'America(stima)
Folla al massimoAffollatoMedia stagioneTranquillo
I mesi con il tempo migliore a Seattle
In classifica secondo il punteggio di comfort climatico di questa destinazione durante l'anno: una cosa diversa da quanta folla c'è (vedi Folla qui sopra).
Clima miglioreA Seattle il tempo è al meglio da giugno a agosto, soprattutto intorno a luglio.
luglio comprende Salmon at the Ballard Locks.
Clima miglioreClima discretoClima più difficile
Cosa c'è in programma a Seattle in luglio
Eventi stagionali ricorrenti, spettacoli naturali, chiusure e festività: selezionati e con fonte.
- Stagione
Junuary
25 mag – 4 lug · di solitoStagione della nebbiaRischioThe 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.
- Natura
Salmon at the Ballard Locks
15 giu – 20 set · di solitoStagione della faunaSockeye 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. Fonte ↗
- Festività
Independence Day
3–5 lugFesta nazionaleAffollatoChiusureThe 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. Fonte ↗
- Stagione
The dry months
5 lug – 15 set · di solitoStagione seccaThe 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.
- Natura
Mount Rainier wildflowers
15 lug – 20 ago · di solitoFiori e fioritureAffollatoParadise 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 lug – 9 ago · di solitoWeekend di motoriAffollatoChiusureHydroplane 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. Fonte ↗
Qui vicino c'è qualcosa in programma
Entro 300 km da Seattle, per una gita in giornata o un breve spostamento, con qualcosa in programma questo mese. Mai incluso nel punteggio di comfort.
Dove si trova Seattle?
Seattle in luglio — domande frequenti
- È un buon momento per visitare Seattle in luglio?
- Seattle in luglio: caldo, asciutto, con aria pulita — uno dei mesi migliori per andarci. Per Seattle è il mese n. 1 su 12 secondo il punteggio di comfort di SeasonMap (97/100).
- Che tempo fa a Seattle in luglio?
- In luglio Seattle ha una massima media di 25.2°C e una minima di 14.3°C, con circa 7.3 mm di pioggia distribuiti in circa 1.3 giorni piovosi.
- Com'è la qualità dell'aria a Seattle in luglio?
- In luglio Seattle ha un indice di qualità dell'aria USA (AQI) medio di circa 35.
Entro 300 km: Olympic National Park: Subalpine wildflowers, verso 20 giu – 10 ago; Victoria, BC: Whale watching season, verso 1 mag – 15 ott.