October weather forecastOkayama, Japan
October
Weather in October
October brings a drop in temperatures as Okayama makes a swift transition from summer to autumn with highs of 22.5°C (72.5°F). The rainfall lessens to 81mm (3.19"), creating the perfect balance between sunny and rainy days. The changing hues of leaves against the backdrop of clear blue skies become a visual treat for both residents and tourists. As Okayama moves deeper into autumn, a slight nip in the air is evident, providing a much-needed relief after the scorching summer months. Scenes of heart-warming harmony emerge with the mixing of vibrant autumn colors and traditional Japanese architecture.Temperature
The arrival of October in Okayama signals a shift in temperature, down from a moderately hot 28.4°C (83.1°F) in September to a pleasant 22.5°C (72.5°F). Throughout the month of October, Okayama witnesses an average temperature of 14°C (57.2°F).Humidity
The average relative humidity in October is 69%.Rainfall
In Okayama, in October, during 14 rainfall days, 81mm (3.19") of precipitation is typically accumulated. In Okayama, during the entire year, the rain falls for 189 days and collects up to 1106mm (43.54") of precipitation.Snowfall
In Okayama, snow does not fall in April through December.Sea temperature
In October, the average sea temperature is 23.2°C (73.8°F).Note: Imagine a swim in 23.2°C (73.8°F) waters. How you'd feel depends on your cold sensitivity, the sun's rays, the caress of the wind, and the warmth enveloping you. Comparatively, Olympic swimmers train in waters between 25°C (77°F) and 28°C (82.4°F).
Daylight
In October, the average length of the day is 11h and 19min.On the first day of the month, sunrise is at 05:59 and sunset at 17:48. On the last day of October, sunrise is at 06:24 and sunset at 17:11 JST.
Sunshine
In Okayama, the average sunshine in October is 5.6h.UV index
In October, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum daily UV index of 6 during October morphs into the following directions:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Okayama, Japan
- Average high temperature in October: 22.5°C
The warmest month (with the highest average high temperature) is August (32.7°C).
The month with the lowest average high temperature is January (9°C).
- Average low temperature in October: 14°C
The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).
Average humidity in October
Okayama, Japan
- Average humidity in October: 69%
The month with the highest relative humidity is July (73%).
The month with the lowest relative humidity is April (60%).
Average rainfall in October
Okayama, Japan
- Average rainfall in October: 81.1mm
The wettest month (with the highest rainfall) is June (171.5mm).
The driest month (with the least rainfall) is December (31mm).
Average rainfall days in October
Okayama, Japan
- Average rainfall days in October: 14 days
The months with the highest number of rainy days are January and March (18 days).
The month with the least rainy days is August (13 days).
Average snowfall in October
Okayama, Japan
- Average snowfall in October: 0mm
The months with the highest snowfall are January, February and March (10mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average sea temperature in October
Okayama, Japan
- Average sea temperature in October: 23.2°C
The best month for swimming (with the highest average sea temperature) is August (27.2°C).
The coldest month (with the lowest average sea temperature) is February (13.3°C).
Average daylight in October /
Average sunshine in October
Okayama, Japan
- Average daylight in October: 11h and 18min
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 36min
The month with the most sunshine is August (Average sunshine: 6h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average UV index in October
Okayama, 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).





