Vejret i Cincinnati i september

Cincinnati i september: varmt, lidt regn, med ren luft — en af de bedste måneder at tage afsted.

Opdateret september 2026 · klimanormaler fra ERA5-reanalysen

Cincinnati🇺🇸 United States · De Store Søer & Midtvesten · By89
  1. 46jan.
  2. 56feb.
  3. 66mar.
  4. 76apr.
  5. 87maj
  6. 81jun.
  7. 72jul.
  8. 79aug.
  9. 89sep.
  10. 83okt.
  11. 64nov.
  12. 53dec.

Nr. 1 af 12 måneder i Cincinnati · Nr. 257 af 1413 rejsemål at besøge i september · komfort 89/100 (niveau A)

Dage
27°C
Nætter
14°C
Våde dage
6
Sol
9.7 h
Luftfugtighed
69%
Dagslys
12 h
Cincinnati, United States
Foto: Eyes2Soul Eyes2Soul · Pexels

Noter fra rejsende om Cincinnati i september

Cincinnati's forum rates September as one of the better months — drier than the rainy stretch from spring through June, past the worst of summer's heat. Regulars are candid that the city's weather stays genuinely unpredictable regardless of season, joking about seeing all four in a single week.
Tripadvisor community · september · for 7 dage siden · Læs mere på Tripadvisor ↗

Andre måneder i Cincinnati

Regulars share a local saying that sums up planning here: if you don't like the weather, wait 15 minutes and it's sure to change - advice regulars apply to this month as much as any other, packing for both a sudden downpour and a stretch of sticky heat within the same trip. Our row backs the hot, humid read, 29.1C reading as a hot 32C, over 16.9C nights, with 88.1mm of rain across 8.2 days and humidity at 72 percent. Regulars are consistent that a quick-drying layer beats a heavy raincoat, since storms here tend to blow through fast rather than settle in for the day. The record: 11.3 hours of sun, a 12.1 kph wind and AQI 61.
WaitFifteenMinutesForItToChange · august · for 3 dage siden · Læs mere på Tripadvisor ↗
Regulars describe spring rain typically holding on into this month before a drier stretch sets in through the rest of summer, with a well-worn local saying that if you don't like the weather, wait fifteen minutes and it's sure to change. Our row backs the transitional, still-wet read, 28.1C reading as a real 30C, over 15.1C nights, with 102.3mm of rain across 8.9 days. Regulars pushing later into late June and early July are more confident calling it hot and humid outright, so this month sits at the hinge between changeable spring and settled summer heat rather than fully inside either. The record: humidity 70 percent, 11.5 hours of sun, a 14.5 kph wind and AQI 67.
WaitFifteenMinutesForItToChange · juni · for 3 dage siden · Læs mere på Tripadvisor ↗
Regulars rate October as one of the drier and milder months here - our row backs it at 66.2mm across 7.7 days - while quoting the local line that if you do not like the weather you should wait fifteen minutes. What that means in practice is layers, with a light sweater for the mornings and evenings: 20.3C days fall to 6.9C nights that feel like 5C. The colour follows the cold, starting around the third week of the month as the overnight temperatures drop, so the back half is the scenic half. The record: humidity 68 percent, 8 hours of sun, a 15.8 kph wind and AQI 35.
WaitFifteenMinutes · oktober · for 3 dage siden · Læs mere på Tripadvisor ↗
A lifelong Cincinnatian's advice for May is to be prepared for all kinds of weather at all times, and the local saying they quote is that if you do not like the weather, wait fifteen minutes. The spread they describe is real: the 70s Fahrenheit and sunny is about as likely as the 40s or 50s and raining, with the average around 21C by day and 10C at night on the 1st. Our row's 23.6C over 10.8C is the month's middle, and the wet half of their prediction is the part the figures back hardest - 119.7mm across 11.8 precipitation days, because spring here stays rainy until the end of June and only then dries out. A medium jacket, heavier than a windbreaker, is what they pack. The record: humidity 73 percent, 9.7 hours of sun and AQI 51.
WaitFifteenMinutes · maj · for 3 dage siden · Læs mere på Tripadvisor ↗

Tilføj din egen note fra Cincinnati på kortet.

Klimanormaler for Cincinnati — september

Dagtemperatur27°C / 80°F🌤 varmt
Nattemperatur14°C / 56°F
Føles som (dag)28°C / 82°F
Nedbør65 mm / 2.6 in🌦 lidt regn
Regnvejrsdage6 dage
Luftfugtighed69 %💧 fugtigt
Dugpunkt15°C / 59°F
Solskin9.7 t/dag
Dagslys12.4 t
Vind13 km/t / 8 mph
Luftkvalitet (US AQI)46🍃 god

Månedsgennemsnit fra ERA5-reanalysen. AQI er det gennemsnitlige amerikanske luftkvalitetsindeks for måneden.

Travlhed i Cincinnati i september

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.

TætpakketRiverfest fireworks, Oktoberfest Zinzinnati, Summer break i United States(anslået)

JFMAMJJASOND

TætpakketTravltSkuldersæsonStille

Bedste måneder for vejret i Cincinnati

Rangeret efter dette rejsemåls egen klimakomfortscore året igennem — noget andet end, hvor travlt der bliver (se Travlhed ovenfor).

Bedste vejrDet bedste vejr i Cincinnati kommer i maj, september og oktober — adskilte vinduer, ikke én sammenhængende sæson.

september rummer Riverfest fireworks.

JFMAMJJASOND

Bedste vejrPænt vejrHårdeste vejr

Det sker i Cincinnati i september

Tilbagevendende sæsonbegivenheder, naturfænomener, lukninger og helligdage — kurateret og med kilder.

  • Festival

    Riverfest fireworks

    6. sep.Lys & ildTætpakketLukninger

    On the Sunday of Labour Day weekend half a million people line both banks for a half-hour firework show fired off barges and the Purple People Bridge. The riverfront closes to cars from lunchtime. Kilde ↗

  • Festival

    Oktoberfest Zinzinnati

    17.–20. sep.Mad- & drikkefestivalTætpakket

    The largest Oktoberfest in the country outside Munich, four free days on the riverfront in the second half of September, complete with a chicken dance record attempt. The German heritage here is real and the queues are long. Kilde ↗

Det sker rundt om i verden i september →

Lige i nærheden sker der noget

Inden for 300 km fra Cincinnati — en dagstur eller et kort hop — hvor der sker noget denne måned. Aldrig en del af komfortscoren.

Hvor ligger Cincinnati?

Indlæser kort…

Cincinnati i september — ofte stillede spørgsmål

Er september et godt tidspunkt at besøge Cincinnati?
Cincinnati i september: varmt, lidt regn, med ren luft — en af de bedste måneder at tage afsted. Måneden ligger nr. 1 ud af 12 for Cincinnati på SeasonMaps komfortscore (89/100).
Hvordan er vejret i Cincinnati i september?
I september har Cincinnati i gennemsnit en dagtemperatur på 26.8 °C og en nattemperatur på 13.5 °C, med omkring 65.4 mm regn fordelt på cirka 6.1 regnvejrsdage.
Hvordan er luftkvaliteten i Cincinnati i september?
Cincinnati har et gennemsnitligt amerikansk luftkvalitetsindeks på omkring 46 i september.

Inden for 300 km: Mammoth Cave National Park's Green River paddling season, omkring 1. maj – 15. okt. og Indianapolis' Indy Jazz Fest, 22.–26. sep..

Vejret i Cincinnati i september: 27 °C, 6 regnvejrsdage, 10 t sol | SeasonMap