September weather forecastShinshiro, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Shinshiro, Japan, with an average temperature ranging between min 19.1°C (66.4°F) and max 25.9°C (78.6°F).Temperature
The commencement of September indicates a gentle shift in the average high-temperature, receding from August's 29.4°C (84.9°F) to a still warm 25.9°C (78.6°F). The low-temperature average for Shinshiro during September stands at an enjoyable 19.1°C (66.4°F).Humidity
The average relative humidity in September is 80%.Rainfall
In September, the rain falls for 17.4 days. Throughout September, 156mm (6.14") of precipitation is accumulated. In Shinshiro, during the entire year, the rain falls for 164.4 days and collects up to 1508mm (59.37") of precipitation.Snowfall
In Shinshiro, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 05:22 and sunset at 18:17. On the last day of September, sunrise is at 05:44 and sunset at 17:35 JST.
Sunshine
In September, the average sunshine in Shinshiro is 8.4h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Undertake precautions - Guarding against sun damage is counselled. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Shinshiro, Japan
- Average high temperature in September: 25.9°C
The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (7.2°C).
- Average low temperature in September: 19.1°C
The month with the highest average low temperature is August (22.6°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).
Average pressure in September
Shinshiro, Japan
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is November (1018.8mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Shinshiro, Japan
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is January (17.3km/h).
The calmest month (with the lowest average wind speed) is August (9.2km/h).
Average humidity in September
Shinshiro, Japan
- Average humidity in September: 80%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are January and February (70%).
Average rainfall in September
Shinshiro, Japan
- Average rainfall in September: 156mm
The wettest month (with the highest rainfall) is July (255mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in September
Shinshiro, Japan
- Average rainfall days in September: 17.4 days
The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in September
Shinshiro, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (5mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Shinshiro, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Shinshiro, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in September
Shinshiro, Japan
- Average sunshine days in September: 11 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (7.9 days).
Average UV index in September
Shinshiro, Japan
- Average UV index in September: 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 September
Shinshiro, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is July (Cloud cover 48).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in September
Shinshiro, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, November and December (10km).
The month with the lowest visibility is July (8km).
