September weather forecastShimonumabe, Japan
September weather for Shimonumabe, Japan: The first month of the autumn, September, is also a moderately hot month in Shimonumabe, Japan, with an average temperature fluctuating between 26.8°C (80.2°F) and 21.3°C (70.3°F). On the first day of September in Shimonumabe, Japan, sunrise is at 05:13 and sunset at 18:08.
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Shimonumabe, Japan, with an average temperature fluctuating between 26.8°C (80.2°F) and 21.3°C (70.3°F).Temperature
With the arrival of September, Shimonumabe notices a mild change in the average high-temperature, sliding from August's hot 31°C (87.8°F) to a warm 26.8°C (80.2°F). Throughout September nights, Shimonumabe registers an average low-temperature of 21.3°C (70.3°F).Humidity
In Shimonumabe, the average relative humidity in September is 74%.Rainfall
In September, in Shimonumabe, the rain falls for 12.5 days. Throughout September, 46mm (1.81") of precipitation is accumulated. In Shimonumabe, Japan, during the entire year, the rain falls for 134.5 days and collects up to 425mm (16.73") of precipitation.Snowfall
April through December are months without snowfall.Daylight
In Shimonumabe, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 05:13 and sunset at 18:08. On the last day of September, in Shimonumabe, sunrise is at 05:35 and sunset at 17:26 JST.
Sunshine
The average sunshine in September in Shimonumabe is 8.1h.UV index
In Shimonumabe, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 during September leads to these advisories:
Exercise prevention - Protecting skin and eyes from harm is required. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Shimonumabe, Japan
- Average high temperature in September: 26.8°C
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in September: 21.3°C
The month with the highest average low temperature is August (25.1°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).
Average pressure in September
Shimonumabe, Japan
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Shimonumabe, Japan
- Average wind speed in September: 12.4km/h
The windiest month (with the highest average wind speed) is April (15.3km/h).
The calmest month (with the lowest average wind speed) is November (12.1km/h).
Average humidity in September
Shimonumabe, Japan
- Average humidity in September: 74%
The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is January (59%).
Average rainfall in September
Shimonumabe, Japan
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is October (51mm).
The driest month (with the least rainfall) is December (21mm).
Average rainfall days in September
Shimonumabe, Japan
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Shimonumabe, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (21mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Shimonumabe, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 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
Shimonumabe, 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 48min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in September
Shimonumabe, Japan
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is June (14.4 days).
Average UV index in September
Shimonumabe, 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, February, March, November and December (UV index 3).
Average cloud cover in September
Shimonumabe, Japan
- Average cloud cover in September: 38
The months with the most cloud cover are June and October (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 28).
Average visibility in September
Shimonumabe, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
