October weather forecastYanai, Japan
October
Weather in October
October, the same as September, in Yanai, Japan, is another pleasant autumn month, with an average temperature varying between 16.5°C (61.7°F) and 21.3°C (70.3°F).Temperature
The move into October indicates a slight reduction in the average high-temperature, down from September's warm 25.8°C (78.4°F) to a pleasant 21.3°C (70.3°F). The October nights in Yanai show a slight decrease to a mean low-temperature of 16.5°C (61.7°F).Humidity
The average relative humidity in October is 75%.Rainfall
In Yanai, in October, during 10.5 rainfall days, 87mm (3.43") of precipitation is typically accumulated. In Yanai, Japan, during the entire year, the rain falls for 168 days and collects up to 1163mm (45.79") of precipitation.Snowfall
March through November are months without snowfall in Yanai.Sea temperature
In Yanai, the average seawater temperature in October is 23.4°C (74.1°F).Note: People sensitive to cold might find swimming in 23.4°C (74.1°F) challenging. However, conditions like sunshine, wind, and ambient temperature play a significant role in the overall comfort. Wetsuits, while optional, might be beneficial.
Daylight
The average length of the day in October in Yanai is 11h and 20min.On the first day of the month, sunrise is at 06:06 and sunset at 17:56. On the last day of October, in Yanai, sunrise is at 06:30 and sunset at 17:20 JST.
Sunshine
In October, the average sunshine is 6.2h.UV index
In Yanai, the average daily maximum UV index in October is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 5 in October leads to these recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. During bright days, sunglasses that offer UVA and UVB defense are recommended. Attention! The combination of sand and water reflections enhances UV ray intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Yanai, Japan
- Average high temperature in October: 21.3°C
The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in October: 16.5°C
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (4.3°C).
Average pressure in October
Yanai, Japan
- Average pressure in October: 1017mbar
The month with the highest atmospheric pressure is January (1021.3mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed in October
Yanai, Japan
- Average wind speed in October: 11.7km/h
The windiest month (with the highest average wind speed) is January (14.5km/h).
The calmest month (with the lowest average wind speed) is June (8km/h).
Average humidity in October
Yanai, Japan
- Average humidity in October: 75%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are January, February and March (71%).
Average rainfall in October
Yanai, Japan
- Average rainfall in October: 87mm
The wettest month (with the highest rainfall) is July (213mm).
The driest month (with the least rainfall) is January (39mm).
Average rainfall days in October
Yanai, Japan
- Average rainfall days in October: 10.5 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is October (10.5 days).
Average snowfall in October
Yanai, Japan
- Average snowfall in October: 0mm
The month with the highest snowfall is December (8mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in October
Yanai, Japan
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (3.3 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
Yanai, Japan
- Average sea temperature in October: 23.4°C
The best month for swimming (with the highest average sea temperature) is August (26.8°C).
The coldest month (with the lowest average sea temperature) is February (12.9°C).
Average daylight in October /
Average sunshine in October
Yanai, 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: 6h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in October
Yanai, Japan
- Average sunshine days in October: 18.4 days
The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in October
Yanai, Japan
- Average UV index in October: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in October
Yanai, Japan
- Average cloud cover in October: 32
The months with the most cloud cover are January and June (Cloud cover 43).
The months with the least cloud cover are August, October and November (Cloud cover 32).
Average visibility in October
Yanai, Japan
- Average visibility in October: 10km
The months with the highest visibility are January, February, March, August, September, October, November and December (10km).
The months with the lowest visibility are April, May, June and July (9km).





