September weather forecastShiraishicho, Japan
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Shiraishicho, Japan, with an average temperature ranging between min 21.6°C (70.9°F) and max 26.5°C (79.7°F).Temperature
Shiraishicho in September undergoes a slight reduction in the average high-temperature, shifting from August's warm 29.8°C (85.6°F) to a still moderately hot 26.5°C (79.7°F). During September, Shiraishicho perceives a slight decrease in temperature from daytime highs, settling at an average low of 21.6°C (70.9°F).Humidity
The average relative humidity in September in Shiraishicho, Japan, is 76%.Rainfall
In September, in Shiraishicho, Japan, the rain falls for 14 days. Throughout September, 87mm (3.43") of precipitation is accumulated. In Shiraishicho, during the entire year, the rain falls for 154.1 days and collects up to 754mm (29.69") of precipitation.Snowfall
In Shiraishicho, snow does not fall in April through December.Daylight
The average length of the day in September in Shiraishicho 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, sunrise is at 05:35 and sunset at 17:26 JST.
Sunshine
In September, the average sunshine in Shiraishicho is 7.9h.UV index
In Shiraishicho, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 6 in September transforms into the following instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Shiraishicho, Japan
- Average high temperature in September: 26.5°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in September: 21.6°C
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (3.4°C).
Average pressure in September
Shiraishicho, Japan
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is November (1018mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Shiraishicho, Japan
- Average wind speed in September: 13.9km/h
The windiest month (with the highest average wind speed) is April (17.3km/h).
The calmest month (with the lowest average wind speed) is June (13.6km/h).
Average humidity in September
Shiraishicho, Japan
- Average humidity in September: 76%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (61%).
Average rainfall in September
Shiraishicho, Japan
- Average rainfall in September: 87mm
The wettest month (with the highest rainfall) is October (100mm).
The driest month (with the least rainfall) is December (36mm).
Average rainfall days in September
Shiraishicho, Japan
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in September
Shiraishicho, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (37mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Shiraishicho, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2 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
Shiraishicho, 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 54min
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 30min).
Average sunshine days in September
Shiraishicho, Japan
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in September
Shiraishicho, 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
Shiraishicho, Japan
- Average cloud cover in September: 39
The months with the most cloud cover are June and October (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in September
Shiraishicho, 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).
