October weather forecast
Osaka, Japan

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The Osaka Castle, in Osaka, Japan
The Osaka Castle, in Osaka, Japan

Weather in October

With October, the onset of autumn brings significantly cooler weather to Osaka, characterized by temperature highs of only 23.3°C (73.9°F). The shift from summer is also marked by decreased humidity, and the city finds respite from the previous sticky conditions. Despite the decrease in temperatures, rainfall remains consistent, providing a damp environment in the city. Autumn's arrival brings about changes in sea temperatures, thus causing a slow departure of marine activities. October sets the stage for the winter months that follow with slowly dwindling temperatures.

Temperature

A subtle decrease in the average high-temperature marks October, falling from September's warm 29.3°C (84.7°F) to a still moderately hot 23.3°C (73.9°F). Throughout the month of October, the average temperature dips to a refreshing 15.5°C (59.9°F) at night.

Humidity

The average relative humidity in October is 65%.

Rainfall

In Osaka, in October, during 7.9 rainfall days, 112mm (4.41") of precipitation is typically accumulated. Throughout the year, in Osaka, there are 98.1 rainfall days, and 1279mm (50.35") of precipitation is accumulated.

Snowfall

March through December are months without snowfall in Osaka.

Sea temperature

In Osaka, in October, the average water temperature is 23.4°C (74.1°F).
Note: Taking into account a person's sensitivity to the cold, given sunshine, wind, and air temperature, swimming in 23.4°C (74.1°F) might be pleasant. (FYI: The water temperature set for the Olympic swimming event is between 25°C (77°F) and 28°C (82.4°F).)

Daylight

In Osaka, the average length of the day in October is 11h and 19min.
On the first day of the month, sunrise is at 05:52 and sunset at 17:42. On the last day of October, in Osaka, sunrise is at 06:17 and sunset at 17:05 JST.

Sunshine

The average sunshine in October in Osaka, Japan, is 5.3h.

UV index

In Osaka, the average daily maximum UV index in October is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in October interprets into the following advice:
Shield from overexposure. Defense against sun-related harm is required. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Alert! UV radiation becomes sharper due to reflections from sand and water.

Frequently asked questions

What are October temperatures in Osaka?

In Osaka, 23.3°C (73.9°F) is the average high-temperature and 15.5°C (59.9°F) is the average low-temperature during October. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 33°C (91.4°F).

What is the average humidity in October in Osaka?

The average relative humidity in October in Osaka is 65%.

How many days does it rain in October in Osaka?

In Osaka, in October, it is raining for 7.9 days, with typically 112mm (4.41") of accumulated precipitation.

When it does not snow in Osaka?

In Osaka, snow does not fall in March through December.

What is the sea temperature in October in Osaka?

In Osaka, the average seawater temperature in October is 23.4°C (74.1°F). For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 23.4°C (74.1°F).

How many hours of daylight does Osaka have in October?

The average day length in October in Osaka, Japan, is 11h and 19min.

What time are sunrise and sunset in October in Osaka?

In October, on the first day of the month, sunrise is at 05:52 and sunset at 17:42. On the last day of the month, in Osaka, Japan, sunrise is at 06:17 and sunset at 17:05 JST.

How many hours of sunshine does Osaka have in October?

In October, the average sunshine duration in Osaka is 5.3h.

What is the UV index intensity in October in Osaka?

In October, the average daily maximum UV index in Osaka is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average UV index

Average temperature in October
Osaka, Japan

Average temperature in October - Osaka, Japan
  • Average high temperature in October: 23.3°C

The warmest month (with the highest average high temperature) is August (33.4°C).
The month with the lowest average high temperature is January (9.5°C).

  • Average low temperature in October: 15.5°C

The month with the highest average low temperature is August (25.4°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).

Average humidity in October
Osaka, Japan

Average humidity in October - Osaka, Japan
  • Average humidity in October: 65%

The month with the highest relative humidity is July (70%).
The months with the lowest relative humidity are March and April (59%).

Average rainfall in October
Osaka, Japan

Average rainfall in October - Osaka, Japan
  • Average rainfall in October: 112.3mm

The wettest month (with the highest rainfall) is June (184.5mm).
The driest month (with the least rainfall) is December (43.8mm).

Average rainfall days in October
Osaka, Japan

Average rainfall days in October - Osaka, Japan
  • Average rainfall days in October: 7.9 days

The month with the highest number of rainy days is June (11.2 days).
The month with the least rainy days is December (5.5 days).

Average snowfall in October
Osaka, Japan

Average snowfall in October - Osaka, Japan
  • Average snowfall in October: 0mm

The months with the highest snowfall are January and February (10mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in October
Osaka, Japan

Average snowfall days in October - Osaka, Japan
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in October
Osaka, Japan

Average sea temperature in October - Osaka, Japan
  • Average sea temperature in October: 23.4°C

The best month for swimming (with the highest average sea temperature) is August (27.7°C).
The coldest months (with the lowest average sea temperature) are February and March (13.9°C).

Average daylight in October /
Average sunshine in October
Osaka, Japan

Average daylight in October / Average sunshine in October - Osaka, Japan
  • Average daylight in October: 11h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in October: 5h and 2min

The month with the most sunshine is August (Average sunshine: 7h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average UV index in October
Osaka, Japan

Average UV index in October - Osaka, Japan
  • Average UV index in October: 6

The month with the highest UV index is July (UV index 11).
The month with the lowest UV index is December (UV index 2).

Osaka, Japan

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