September weather forecastShionada, Japan
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Shionada, Japan, with an average temperature fluctuating between 12°C (53.6°F) and 21.5°C (70.7°F).Temperature
September indicates a minor shift in the average high-temperature, from August's warm 26.1°C (79°F) to an agreeable 21.5°C (70.7°F). September brings an average low-temperature of 12°C (53.6°F) to Shionada.Humidity
The months with the highest humidity are July and September, with an average relative humidity of 86%.Rainfall
In Shionada, in September, during 15.5 rainfall days, 89mm (3.5") of precipitation is typically accumulated. In Shionada, during the entire year, the rain falls for 193.2 days and collects up to 926mm (36.46") of precipitation.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 September, sunrise is at 05:17 and sunset at 18:14. On the last day of the month, sunrise is at 05:40 and sunset at 17:31 JST.
Sunshine
In Shionada, the average sunshine in September is 6.6h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Take precautions - Protection against sun damage is advised. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 24min
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 36min
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).
