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Osaka Weather in September, Japan

Slide and Tap Other Months

  • What is Average Temperature?
    The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month


  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    High Temperature

  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    Low Temperature

  • What is Average Sea Temperature?
    Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface

    Sea Temperature

  • What are Average Daily Sunshine Hours?
    Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

    Sunshine Hours

    5.1 hours
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

    Rainfall Days

    16 days
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years


    170 mm

September, 2024

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What's the Weather Like in Osaka in September


Average temperatures are on the significant decline during September in Osaka, the capital of the Osaka Prefecture. Daily lows typically fluctuate between 15C (59F) and 26C (78.8F), sometimes even to a larger extent. Daily highs usually vary from 22C (71.6F) to 34C (93.2F). However, lower temperature values are characteristic to the second half of the month while higher temperatures are predominant in the first. In general, average daily temperatures remain between 21C (69.8F) and 29C (84.2F) throughout September. In regard to low and high temperatures, Osaka, Japan, is less warm than Bangkok, Thailand, this time of year.

The city usually experiences high temperatures (over 29C/84.2F) only in the first week of September during a few hours around mid-afternoon. The rest of the period, it feels warm (over 24C/75.2F, for example) or comfortable. The duration of the warm interval decreases at a fast rate. At the beginning of the month, it lasts approx. from 7 am to 4 am. By the month's end, it feels warm roughly from noon to 6 pm. The rest of the day, temperatures are comfortable.

Sunshine Hours

The city of Osaka features a significant decline in sunshine hours in September when compared to August. On average, the second largest Japanese city has between 5 and 5:40 hours of sunlight per day, which is somewhat less than 50% of daylight. Also, the possibility of overcast or mostly cloudy weather is on the slight decrease. The likelihood of a cloudy day drops from 50% in the first to 45% in the final days of the month.


Albeit the cloud cover decreases, the overall precipitation is on the significant rise. The accumulation of rainfall in Osaka is almost doubled in September when compared to August, measuring between 160 mm/6.3 in and 170 mm/6.7 in on average. The number of rainy days during the month is usually between 10 and 12. The possibility of a wet day is around 40% in the course of September.

On average, days are much more likely to feature rainy weather than nights. Around noon is the most probable time of the day for the rain to fall. From the statistical point of view, the precipitation is least likely to occur a few hours before midnight.

Wind speed

In the first month of autumn, the average wind speed increases from 2.9 m/s to 3.3 m/s. Days are windier than nights, with the speed of the wind increasing up to 3.9 m/s. Wind this strong is classified as gentle breeze.


With the average relative humidity being around 69%, you can have all humidity conditions in the port city of Osaka in September. The probability of humid weather, however, is on the rapid decrease in the course of the month, from 80% to 24%. Hence, days are most likely to be muggy or oppressive in the first half of September. In the second, it becomes more probable that a day will be somewhat humid or even comfortable.

Sunrise and sunset

Daylight becomes shorter with the passage of time in this Japanese city this time of year. On September 1, daybreak occurs at 5:30 am while sundown takes place at 6:25, which gives the metropolis 12:55 daylight hours. On September 30, the sun rises at 5:51 am and sets 11:53 hours later, at 5:44 pm.

Average sea temperature

The sea temperature in this period usually ranges between 24.5C (76.1F) and 28C (82.4F). On average, the temperature of the water surface is around 26C (78.8F).

Extraordinary weather occurrences

The typhoon season is at full swing this time of year in the Japanese port city of Osaka. These hazards of nature tend to be particularly powerful in September in this destination. Thankfully, though, the 2nd largest metropolis of Japan is somewhat sheltered, which diminishes the impacts of the tropical storm. Furthermore, floods and landslides caused by typhoons are much likelier to be dangerous than the storm itself.

Earthquakes, which take place almost on a daily basis in Japan, are the consequence of the country's location near 4 tectonic plates. In that regard, Osaka is pretty much susceptible to these natural hazards. Most of the time, though, they manifest themselves as minor tremors.

Tsunamis are other natural occurrences the city is exposed to. They take place when an underwater earthquake sends a series of speedy waves that hit the coastline. What's more, these waves grow in size as they draw near the shore. If the danger of a tsunami presents itself, go far inland, if possible, take a vantage point or enter the tsunami-proof structure without hesitation. Besides typhoons, tsunamis are the main cause of excessive flooding.

Osaka Hotels in September

Hotel rates in Osaka, Japan, are reasonable, in general, this time of year. It appears that less tourists come to the city during most of September, which results in shorter queuing at attractions. This changes by the end of the month when Silver Week takes place.

Hostel Wasabi Osaka Bed with Library

Hostel Wasabi Osaka Bed with Library is a great solution for budget travelers. Guests can choose among male, female and mixed dormitories, which dispose of shared bathrooms with free toiletries. A luggage storage and a lounge are additional facilities.

Shinsaibashi Grand Hotel Osaka

Shinsaibashi Grand Hotel Osaka is a 3-star hotel located near Dotonbori. Single, twin, double and triple rooms feature free internet access, toiletries, flat-screen TVs, hairdryers and air purifiers among other in-room amenities. A restaurant serving ramen, noodles and Japanese stew is also available.

Hotel Sobial Osaka

Hotel Sobial Osaka is a new hotel that has a wide range of accommodation units on offer. Single, twin and double rooms dispose of free Wi-Fi, air-conditioning, a refrigerator and complimentary toiletries. Some additional facilities are an open-air bath, a salad & sandwich bar, restaurant and a small library.

The Westin Osaka

The Westin Osaka is a 5-star hotel featuring spacious and sound-proof rooms. Some in-room amenities are minibars, LCD TVs and 24-hour room service. Guests of the hotel also benefit of an acupuncture salon, relaxation salon and a fitness club. Restaurants, bars and lounges are some additional facilities of The Westin Osaka hotel.

Bars and restaurants

The Japanese port city of Osaka has a varied culinary offer that satisfies even the most discerning gourmands. Bars and restaurants serving Japanese and international dishes are ubiquitous. And everything between budget and exclusive options is available. Furthermore, you can find great food in other places, too, such as stalls and markets. Kuromon Ichiba (fresh produce) and Sennichimae Doguya-Suji (snacks and sushi) are some renowned places where you can find excellent food.


Cinquecento is a nightlife bar near the flashing Dotonbori neighborhood. This bar has a collection of great martinis, including Apple Martini and Chocolate Martini. Plus, the prices are quite affordable. Opening hours of Cinquecento are from 8 pm until 5 am (3 am on Sunday).

Oretachi No Curry Ya

Oretachi No Curry Ya is a budget restaurant specializing in Japanese curry. In fact, this particular dining venue is one of the best places in the port city of Osaka where you can eat these dishes. Curry with a pork katsu is the specialty of the house you should try. In general, opening hours are from 11:30 am to 10 pm.

Taqueria La Fonda

Taqueria La Fonda is a mid-range eatery serving Mexican food. Besides famous tacos, you can enjoy dishes based on beef and pork meat, shrimps, margarita cocktails and much more. Taqueria La Fonda is open from noon to 2:30 pm and between 6 pm and 11:30 pm daily except on Sunday.


Tsurugyu is a high-end restaurant specializing in beef meat. Kobe beef tongue and cold noodles are some specialties that are worth ordering. Make sure to reserve your table in advance because Tsurugyu is a very popular dining venue.

Things to do in Osaka in September

Osaka Museum of Housing and Living

Osaka Museum of Housing and Living is a well-reputed exhibition venue revealing how life went on in the city of Osaka in past times. Besides, you will have a chance to walk down the streets characteristic of the Edo period reconstructed in full scale. Furthermore, the development of the present metropolis is the spotlight of various interactive contents of the museum.

Universal Studios Japan

Universal Studios Japan is another top attraction of this Japanese city. It abounds with entertaining options suitable for all ages, ranging from exhibitions and parades to thrilling rides on roller coasters. The Universal Studios Japan consists of 8 themed areas, of which the Wizarding World of Harry Potter is the absolute highlight. One thing is sure for visitors of this entertaining complex. The end of the day always arrives too soon.

Osaka Castle

Osaka Castle is the UNESCO site and one of the key tourist attractions in Osaka, the capital of the Osaka Prefecture. The fortified complex, also known as the Osaka Castle Park, is the second largest park in the city. Defensive walls with turrets and wide moats filled with water surround the complex whose main landmark is a several-storied keep. Inside, you can complement your knowledge of the city by seeing the exhibition about the history of the castle. Also, you can join a boat tour around the Osaka Castle.