Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In September, the average high-temperature marginally drops from a moderately hot 26.1°C (79°F) in August to a pleasant 21.5°C (70.7°F). During September, Shionada witnesses a consistent average low-temperature of 12°C (53.6°F).Humidity
July and September, with an average relative humidity of 86%, are the most humid months in Shionada.Rainfall
In Shionada, Japan, in September, during 15.5 rainfall days, 89mm (3.5") of precipitation is typically accumulated. Throughout the year, there are 193.2 rainfall days, and 926mm (36.46") of precipitation is accumulated.Snowfall
In Shionada, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 05:17 and sunset at 18:14. On the last day of September, sunrise is at 05:40 and sunset at 17:31 JST.
Sunshine
The average sunshine in September is 6.6h.UV index
The average daily maximum UV index in September in Shionada is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, an average UV index of 4 transforms into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Shionada in September?
What are the most humid months in Shionada?
What is the average humidity in September in Shionada?
How much does it rain in Shionada in September?
When it does not snow in Shionada?
How many hours of daylight does Shionada have in September?
When is the sunrise / sunset in September in Shionada?
How long on average sun shines in September in Shionada?
What is the UV index reading in September in Shionada?
Average temperature in September
Shionada, Japan
- Average high temperature in September: 21.5°C
The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (-0.2°C).
- Average low temperature in September: 12°C
The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is January (-8.8°C).
Average pressure in September
Shionada, Japan
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is November (1018.9mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Shionada, Japan
- Average wind speed in September: 6.7km/h
The windiest month (with the highest average wind speed) is January (9.5km/h).
The calmest month (with the lowest average wind speed) is August (5.8km/h).
Average humidity in September
Shionada, Japan
- Average humidity in September: 86%
The months with the highest relative humidity are July and September (86%).
The month with the lowest relative humidity is May (74%).
Average rainfall in September
Shionada, Japan
- Average rainfall in September: 89mm
The wettest month (with the highest rainfall) is October (137mm).
The driest month (with the least rainfall) is December (43mm).
Average rainfall days in September
Shionada, Japan
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (13.3 days).
Average snowfall in September
Shionada, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (276mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Shionada, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Shionada, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 6h and 4min
The month with the most sunshine is May (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
Shionada, Japan
- Average sunshine days in September: 13 days
The month with the most sunshine days is July (14.9 days).
The month with the least sunshine days is February (5.8 days).
Average UV index in September
Shionada, Japan
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Shionada, Japan
- Average cloud cover in September: 62
The month with the most cloud cover is September (Cloud cover 62).
The month with the least cloud cover is May (Cloud cover 44).
Average visibility in September
Shionada, Japan
- Average visibility in September: 6km
The months with the highest visibility are January, March, April, May and December (8km).
The months with the lowest visibility are July, August, September and October (6km).
Shionada, Japan
Weather forecast for your location
2. Allow the app to use your location