Vejret i Hyannis (Cape Cod) i august
Hyannis i august: hedt, lidt regn, med lummer luft — en af de bedste måneder at tage afsted.
Opdateret september 2026 · klimanormaler fra ERA5-reanalysen
Nr. 2 af 12 måneder i Hyannis · Nr. 328 af 1413 rejsemål at besøge i august · komfort 88/100 (niveau A)
- Dage
- 27°C
- Nætter
- 18°C
- Våde dage
- 7
- Sol
- 10.8 h
- Luftfugtighed
- 81%
- Dagslys
- 14 h

Noter fra rejsende om Hyannis i august
Forum posters describe August as typically the warmest month, often in the 80s-90sF and humid, though the Cape's ocean breezes keep it noticeably cooler than inland Massachusetts at the same time - a stretch of 90F+ days is possible, but so is a cooler, rawer spell within the same month. Posters call August rain genuinely unpredictable, ranging from a light sprinkle to a full washed-out day, though it's typically the lowest-rain month of the summer overall. Mosquitoes are a real, near-constant presence, especially in the evenings, with repellent treated as standard packing. Posters consistently name the last two weeks of August through September as the more reliably pleasant stretch compared to June or early August.
Andre måneder i Hyannis
Cape Cod's own forum doesn't sugarcoat February: expect a real chance of high wind, biting cold and snow, and New England weather here is notoriously hard to predict from one day to the next. Multiple posters recommended layering with fleece under a windproof shell so you can still get outside comfortably. A good number of shops and restaurants that cater to the summer crowd simply close for the season, so plan meals ahead rather than expecting to wander and find something open. It's a legitimate visit for solitude and off-season prices, just not the postcard version of the Cape.
Tilføj din egen note fra Hyannis på kortet.
Klimanormaler for Hyannis — august
Månedsgennemsnit fra ERA5-reanalysen. AQI er det gennemsnitlige amerikanske luftkvalitetsindeks for måneden.
Travlhed i Hyannis i august
Hvor travlt der er på selve stedet — skoleferier og masseferier, de måneder en redaktør har markeret, og hvor eftertragtet vejret gør dem. Aldrig en del af komfortscoren.
TætpakketIsland ferry high season, Peak summer season, Summer break i United States(anslået)
TætpakketTravltSkuldersæsonStille
Bedste måneder for vejret i Hyannis
Rangeret efter dette rejsemåls egen klimakomfortscore året igennem — noget andet end, hvor travlt der bliver (se Travlhed ovenfor).
Bedste vejrVejret i Hyannis topper juni–august, bedst omkring juli.
august rummer White shark season.
Bedste vejrPænt vejrHårdeste vejr
Det sker i Hyannis i august
Tilbagevendende sæsonbegivenheder, naturfænomener, lukninger og helligdage — kurateret og med kilder.
- Åbning
Island ferry high season
20. maj – 15. okt. · normaltSommersæsonen åbnerTætpakketBook tidligtHyannis is the mainland end of the Nantucket boats, and the summer timetable adds fast ferries and extra sailings from late May. Car spaces on the traditional boat are released months ahead and go the day they open. Kilde ↗
- Natur
White shark season
1. jun. – 31. okt. · normaltDyrelivssæsonRisikoWhite sharks follow the grey seals into Cape waters from early summer and are gone by late autumn, with the tagged detections peaking in August and September. It is the ocean side that closes for sightings, not the calmer Nantucket Sound beaches in town. Kilde ↗
- Sæson
Peak summer season
1. jul. – 31. aug.SkoleferieTætpakketBook tidligtThe whole Cape funnels through here for the boats, and Route 6 and the rotaries jam every Friday afternoon and Sunday evening. Main Street is at its best on a weekday morning before the day-boats land.
- Risiko
Hurricane season
15. aug. – 31. okt. · normaltLukningerNew England catches the tail of Atlantic systems in late summer and autumn, and even a passing storm cancels the island ferries and takes the power out for a day or two. Direct hits are rare; disrupted travel is not. Kilde ↗
Lige i nærheden sker der noget
Inden for 300 km fra Hyannis — en dagstur eller et kort hop — hvor der sker noget denne måned. Aldrig en del af komfortscoren.
Hvor ligger Hyannis?
Hyannis i august — ofte stillede spørgsmål
- Er august et godt tidspunkt at besøge Hyannis?
- Hyannis i august: hedt, lidt regn, med lummer luft — en af de bedste måneder at tage afsted. Måneden ligger nr. 2 ud af 12 for Hyannis på SeasonMaps komfortscore (88/100).
- Hvordan er vejret i Hyannis i august?
- I august har Hyannis i gennemsnit en dagtemperatur på 26.8 °C og en nattemperatur på 18.1 °C, med omkring 78.6 mm regn fordelt på cirka 6.9 regnvejrsdage.
- Hvordan er luftkvaliteten i Hyannis i august?
- Hyannis har et gennemsnitligt amerikansk luftkvalitetsindeks på omkring 58 i august.
Inden for 300 km: Newport's Newport Jazz Festival, 31. jul. – 2. aug. og Boston's Whales on Stellwagen Bank, omkring 15. apr. – 20. okt..