September weather forecastShibayama, Japan
September weather for Shibayama, Japan: September, the first month of the autumn in Shibayama, is also a moderately hot month, with an average temperature ranging between max 26.4°C (79.5°F) and min 21.8°C (71.2°F). On the first day of September in Shibayama, Japan, sunrise is at 05:10 and sunset at 18:06.
September
Weather in September
September, the first month of the autumn in Shibayama, is also a moderately hot month, with an average temperature ranging between max 26.4°C (79.5°F) and min 21.8°C (71.2°F).Temperature
In September, the average high-temperature marginally decreases from a tropical 30.1°C (86.2°F) in August to a moderately hot 26.4°C (79.5°F). The month of September is marked by an average minimum temperature of 21.8°C (71.2°F), slightly cooler than its daytime counterpart.Humidity
In Shibayama, the average relative humidity in September is 77%.Rainfall
In Shibayama, Japan, in September, it is raining for 18.5 days, with typically 123mm (4.84") of accumulated precipitation. Throughout the year, in Shibayama, there are 188.7 rainfall days, and 1052mm (41.42") of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
The average length of the day in September in Shibayama is 12h and 25min.On the first day of September in Shibayama, Japan, sunrise is at 05:10 and sunset at 18:06. On the last day of the month, sunrise is at 05:32 and sunset at 17:23 JST.
Sunshine
In September, the average sunshine is 7.6h.UV index
The average daily maximum UV index in September in Shibayama is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Shibayama, Japan
- Average high temperature in September: 26.4°C
The warmest month (with the highest average high temperature) is August (30.1°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in September: 21.8°C
The month with the highest average low temperature is August (24.6°C).
The coldest month (with the lowest average low temperature) is January (3.8°C).
Average pressure in September
Shibayama, Japan
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Shibayama, Japan
- Average wind speed in September: 13.8km/h
The windiest month (with the highest average wind speed) is March (16.8km/h).
The calmest month (with the lowest average wind speed) is June (12.8km/h).
Average humidity in September
Shibayama, Japan
- Average humidity in September: 77%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is January (61%).
Average rainfall in September
Shibayama, Japan
- Average rainfall in September: 123mm
The wettest month (with the highest rainfall) is October (144mm).
The driest month (with the least rainfall) is January (45mm).
Average rainfall days in September
Shibayama, Japan
- Average rainfall days in September: 18.5 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is January (9 days).
Average snowfall in September
Shibayama, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (27mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Shibayama, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 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
Shibayama, 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: 7h and 36min
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 18min).
Average sunshine days in September
Shibayama, Japan
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is January (18.7 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in September
Shibayama, Japan
- Average UV index in September: 6
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
Shibayama, Japan
- Average cloud cover in September: 41
The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in September
Shibayama, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, August, September, October, November and December (10km).
The months with the lowest visibility are June and July (9km).





