Destination packing checklists

Osaka weather in September

Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average

Osaka September weather at a glance

D Challenging 😓

In September, Osaka averages 27.3°C, with typical highs of 31.5°C and lows of 23.9°C. The historical average is 14 wet days and 75% humidity.

Compared with Seoul in September, it is 4.4°C warmer than Seoul, with a similar number of wet days.

Osaka September temperature & humidity

Average27.3°CHigh 31.5° / low 23.9°
Humidity75%
Wet days14 days47% of days
Day–night range7.6°

Osaka September rain & wet days

Wet days14 daysHistorical monthly average
Share of wet days47%Not a forecast probability

Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.

What to wear in Osaka in September

Expect intense heat. Pack lightweight quick-dry clothing, sun protection and a refillable bottle. Rain is frequent at roughly 14 days in the month; pack a rain jacket and water-resistant shoes.

  • DaytimeBreathable short sleeves, hat and sunscreen · average high 31.5°C
  • Morning & eveningLight layer for air-conditioned rooms · average low 23.9°C
  • FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Useful extras
Quick-dry clothingPortable fanRefillable water bottleRain jacketWater-resistant shoesCompact umbrella
Open the Osaka packing checklist →

Osaka September sunrise & sunset times

2026 September · Local time (Asia/Tokyo)

Sunrise on the 15th05:41
Sunset on the 15th18:06
Daylight duration12h 25m
Start, middle and end of the month
DateSunriseSunsetDaylight
2026-09-0105:3118:2512h 54m
2026-09-1505:4118:0612h 25m
2026-09-3005:5217:4411h 53m

For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.

Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup

Osaka travel updates

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Osaka travel essentials

Popular MyRealTrip products · city search, sorted by sales · Product names are in Korean.

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Best months to visit Osaka

Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.

ColdHot

September weather by year

September 202427.6°12 wet days, 75% humidity
September 202527.1°16 wet days, 74% humidity

Daily weather in 2025

Daily high and low temperatures; blue labels show precipitation

135°29°
235°28°
337°27°2.4mm
431°25°18mm
531°25°57mm
632°24°
731°24°
831°27°
933°26°
1033°26°12mm
1130°24°30mm
1231°23°8mm
1330°24°7.7mm
1431°27°
1532°25°1.8mm
1633°26°
1733°26°8.2mm
1832°25°4.9mm
1931°22°
2030°24°7.4mm
2129°22°26mm
2228°19°
2329°21°
2429°23°
2529°23°6.5mm
2630°23°1.8mm
2730°21°
2832°19°5.3mm
2927°22°13mm
3027°19°

Frequently asked questions

What is Osaka weather like in September?

In September, Osaka averages 27.3°C, with typical highs of 31.5°C and lows of 23.9°C. The historical average is 14 wet days and 75% humidity. Our weather-comfort rating for this month is challenging.

Does it rain a lot in Osaka in September?

There are about 14 wet days in September. Pack a rain jacket and water-resistant shoes.

What should I wear in Osaka in September?

Expect intense heat. Pack lightweight quick-dry clothing, sun protection and a refillable bottle. Rain is frequent at roughly 14 days in the month; pack a rain jacket and water-resistant shoes.

What are the best months to visit Osaka?

Recent weather data rates April, November, December among the more comfortable months.

Where can I check Osaka weather in September in real time?

Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.

What time are sunrise and sunset in Osaka in September?

On 2026-09-15, calculated sunrise is 05:41 and sunset is 18:06 in local time (Asia/Tokyo). Times vary by date and terrain.

Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations