Vejret i Osaka i september
Osaka i september: trykkende hedt, gennemblødt, med lummer luft — et gamble, med 13 regnvejrsdage.
Opdateret september 2026 · klimanormaler fra ERA5-reanalysen
Nr. 10 af 12 måneder i Osaka · Nr. 1119 af 1413 rejsemål at besøge i september · komfort 61/100 (niveau C)
- Dage
- 30°C
- Nætter
- 23°C
- Våde dage
- 13
- Sol
- 8.4 h
- Luftfugtighed
- 78%
- Dagslys
- 12 h

Sådan er september i Osaka
Still hot and still in typhoon season; the heat breaks only in the last week.
typhoonlow season
sikkerhed: high
Noter fra rejsende om Osaka i september
Andre måneder i Osaka
Regulars are specific that the coldest winter stretch usually doesn't set in until late December, and even then it isn't brutal, especially during the day - mornings can start in the low single digits Celsius before climbing to a manageable afternoon. Our row backs that cool-not-harsh read, 12.9C over 5.5C nights feeling 3C, with 49.3mm of rain across 5.6 days and only a trace of snow, 0.2cm, matching regulars' consensus that real snow in the city itself is genuinely rare. Regulars are consistent that conditions stay dry and often sunny rather than gray, a real upside for a December city trip. A warm layer for the evenings is the standard packing tip, not a heavy winter coat. The sea sits at a cold 11.9C. The record: humidity 75 percent, 7.4 hours of sun, a 15.1 kph wind and AQI 56.
Late March here swings hard - one day mild, the next genuinely cold - and regulars pack for both: long sleeves, a sweater, a light jacket and something that rolls up small. Our row gives 15.7C reading as 14C and 7C nights that feel like 4C, with 104.6mm of rain across 9.9 days, so the umbrella is not optional either. On the blossom they are careful: the trees will be somewhere between budding and open depending on the year's warmth, and the forecast is the only guide. This is the same caution kagoshima/3 records further south, where the season starts earlier. The record: humidity 72 percent, 8.4 hours of sun and AQI 64.
Regulars rate October among the best months here - warm clear days, cool but not cold evenings, few tourists and no major holidays - and add two corrections. Typhoons rarely reach this far into the month; they usually finish earlier, and a late one is likely just a day of rain. And there is no autumn colour yet: the leaves in Osaka and Kyoto do not turn until mid-November, so anyone booking October for foliage has the wrong month. Our row queries their word dry, at 170.9mm across 11.5 days under 7.7 hours of sun, though the temperature matches at 24.3C over 16.6C. A light jacket and a sweater, not a coat. The record: humidity 77 percent, a 22.7C sea and AQI 55.
April in Osaka is the blossom month with a deadline attached. Regulars put the season from the end of March to about mid-April and are blunt that by the 15th to the 22nd you have missed it in the city; Mount Yoshino in Nara is the day trip they send late arrivals on. The temperatures they give - 10 to 20C - bracket our row's 11.9C nights and 21C days, and the packing follows from that: layers, long sleeves over a t-shirt, a jumper or light jacket for the evening, and no need for a proper coat. The item they insist on is a rain jacket, because April here is wet - our row carries 137.3mm across 9.8 days. The record: 8.9 hours of sun, humidity 72 percent and AQI 70.
Tilføj din egen note fra Osaka på kortet.
Klimanormaler for Osaka — september
Månedsgennemsnit fra ERA5-reanalysen. AQI er det gennemsnitlige amerikanske luftkvalitetsindeks for måneden.
Travlhed i Osaka 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.
Stilleredaktionens stille måned, Kishiwada Danjiri Matsuri, skoleferie på 3 af de markeder, der fylder stedet
TætpakketTravltSkuldersæsonStille
Bedste måneder for vejret i Osaka
Rangeret efter dette rejsemåls egen klimakomfortscore året igennem — noget andet end, hvor travlt der bliver (se Travlhed ovenfor).
Hårdeste vejrDet bedste vejr i Osaka kommer i april, maj og november — adskilte vinduer, ikke én sammenhængende sæson.
september falder sammen med Typhoon season.
Bedste vejrPænt vejrHårdeste vejr
Det sker i Osaka i september
Tilbagevendende sæsonbegivenheder, naturfænomener, lukninger og helligdage — kurateret og med kilder.
- Risiko
Typhoon season
1. aug. – 30. sep. · normaltLukningerKansai Airport sits on a man-made island in the bay and shuts when a serious system comes up the coast. Late summer is when that is most likely. Kilde ↗
- Festival
Kishiwada Danjiri Matsuri
18.–20. sep.Religiøs højtidTætpakketTeams sprint wooden shrine floats around street corners at full speed half an hour down the coast. It is genuinely dangerous and completely unmissable. Kilde ↗
Lige i nærheden sker der noget
Inden for 300 km fra Osaka — en dagstur eller et kort hop — hvor der sker noget denne måned. Aldrig en del af komfortscoren.
Hvor ligger Osaka?
Osaka i september — ofte stillede spørgsmål
- Er september et godt tidspunkt at besøge Osaka?
- Osaka i september: trykkende hedt, gennemblødt, med lummer luft — et gamble, med 13 regnvejrsdage. Måneden ligger nr. 10 ud af 12 for Osaka på SeasonMaps komfortscore (61/100).
- Hvordan er vejret i Osaka i september?
- I september har Osaka i gennemsnit en dagtemperatur på 30.3 °C og en nattemperatur på 23.1 °C, med omkring 170.7 mm regn fordelt på cirka 13.3 regnvejrsdage.
- Hvordan er luftkvaliteten i Osaka i september?
- Osaka har et gennemsnitligt amerikansk luftkvalitetsindeks på omkring 65 i september.
Inden for 300 km: Matsumoto's Kamikochi open season, omkring 17. apr. – 15. nov. og Kanazawa's Kanazawa Jazz Street, 19.–21. sep..