September weather forecastIkuho, Japan
September
Weather in September
September, the first month of the autumn in Ikuho, is still a warm month, with an average temperature varying between 26.2°C (79.2°F) and 23.1°C (73.6°F).Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from 29.2°C (84.6°F) in August to a still moderately hot 26.2°C (79.2°F). Ikuho observes a minimal variance in temperature, with a consistent average low of 23.1°C (73.6°F) during the nights of September.Humidity
In September, the average relative humidity in Ikuho is 75%.Rainfall
In Ikuho, in September, during 16.9 rainfall days, 156mm (6.14") of precipitation is typically accumulated. In Ikuho, during the entire year, the rain falls for 195.3 days and collects up to 1230mm (48.43") of precipitation.Snowfall
In Ikuho, snow does not fall in March through December.Daylight
The average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 05:33 and sunset at 18:26. On the last day of September, sunrise is at 05:54 and sunset at 17:46 JST.
Sunshine
In Ikuho, the average sunshine in September is 9.2h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 6 transforms into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ikuho, Japan
- Average high temperature in September: 26.2°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (9.7°C).
- Average low temperature in September: 23.1°C
The month with the highest average low temperature is August (26.1°C).
The coldest month (with the lowest average low temperature) is January (6.4°C).
Average pressure in September
Ikuho, Japan
- Average pressure in September: 1012.6mbar
The months with the highest atmospheric pressure are January and February (1019.9mbar).
The month with the lowest atmospheric pressure is June (1008.7mbar).
Average wind speed in September
Ikuho, Japan
- Average wind speed in September: 14.5km/h
The windiest month (with the highest average wind speed) is January (23.6km/h).
The calmest month (with the lowest average wind speed) is June (12.5km/h).
Average humidity in September
Ikuho, Japan
- Average humidity in September: 75%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is January (67%).
Average rainfall in September
Ikuho, Japan
- Average rainfall in September: 156mm
The wettest month (with the highest rainfall) is July (190mm).
The driest month (with the least rainfall) is January (44mm).
Average rainfall days in September
Ikuho, Japan
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is July (20.7 days).
The months with the least rainy days are February and May (13.2 days).
Average snowfall in September
Ikuho, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (9mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Ikuho, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (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
Ikuho, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The months with the least sunshine are January and February (Average sunshine: 5h and 18min).
Average sunshine days in September
Ikuho, Japan
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is May (16.1 days).
The months with the least sunshine days are August and December (7.8 days).
Average UV index in September
Ikuho, Japan
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Ikuho, Japan
- Average cloud cover in September: 35
The months with the most cloud cover are January and February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Ikuho, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).





