Været i Seattle i mai
mai i Seattle: behagelig, litt regn, med ren luft — et utmerket tidspunkt å reise hit.
Oppdatert september 2026 · klimanormaler fra ERA5-reanalysen
Nr. 5 av 12 måneder i Seattle · Nr. 477 av 1413 reisemål å besøke i mai · komfort 85/100 (nivå A)
- Dager
- 19°C
- Netter
- 10°C
- Våte dager
- 5
- Sol
- 10.8 h
- Luftfuktighet
- 74%
- Dagslys
- 15 h

Reisendes notater om Seattle i mai
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.
Andre måneder i Seattle
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.
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.
Notatene som gjelder hele året, ligger på oversikten over Seattle. Legg til ditt eget notat fra kortet til Seattle på kartet.
Klimanormaler for Seattle — mai
Månedsgjennomsnitt fra ERA5-reanalysen. AQI er den gjennomsnittlige amerikanske luftkvalitetsindeksen for måneden.
Trengsel i Seattle i mai
Hvor travelt selve stedet er — skoleferier og fellesferier, månedene en redaktør har merket, og hvor ettertraktet været gjør dem. Aldri en del av komfortscoren.
TraveltSeattle International Film Festival(anslag)
ToppsesongTraveltSkuldersesongRolig
Beste måneder for været i Seattle
Rangert etter reisemålets egen klimakomfortscore gjennom året — noe annet enn hvor travelt det blir (se Trengsel over).
Brukbart værVæret i Seattle topper seg juni–august, best rundt juli.
Best værBrukbart værTøffest vær
Hva som skjer i Seattle i mai
Faste sesonghendelser, naturfenomener, stengninger og helligdager — kuratert og kildebelagt.
- Festival
Seattle International Film Festival
8.–26. mai · vanligvisMye folkBestill tidligEleven days of screenings across a dozen city venues in the middle of May, and the one stretch of the year Seattle's cinemas queue down the block. Weekend tickets for the bigger titles go before the festival opens. Kilde ↗
- Festival
Northwest Folklife
22.–31. mai · vanligvisMusikkfestivalFour free days at Seattle Center over Memorial Day weekend, several hundred acts and no headliners. It is the unofficial start of the dry half of the year. Kilde ↗
- Sesong
Junuary
25. mai – 4. jul · vanligvisTåkesesongRisikoThe 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.
I nærheten, og noe skjer
Innen 300 km fra Seattle — en dagstur eller et kort hopp — med noe på gang denne måneden. Aldri en del av komfortscoren.
Hvor ligger Seattle?
Seattle i mai — ofte stilte spørsmål
- Er mai et godt tidspunkt å besøke Seattle?
- mai i Seattle: behagelig, litt regn, med ren luft — et utmerket tidspunkt å reise hit. Måneden ligger på plass 5 av 12 for Seattle på SeasonMaps komfortscore (85/100).
- Hvordan er været i Seattle i mai?
- I mai har Seattle i snitt en dagtemperatur på 19.1°C og en natttemperatur på 9.5°C, med rundt 34 mm regn fordelt på omtrent 5.3 regndager.
- Hvordan er luftkvaliteten i Seattle i mai?
- Seattle har en gjennomsnittlig amerikansk luftkvalitetsindeks på rundt 44 i mai.
Innen 300 km: Victoria, BCs Whale watching season, rundt 1. mai – 15. okt og Portlands Portland Rose Festival, rundt 22. mai – 14. jun.