September weather forecastIkuha, Japan
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Ikuha, Japan, with temperature in the range of an average low of 21.7°C (71.1°F) and an average high of 26.5°C (79.7°F).Temperature
In September, the meteorological conditions change slightly, with the average high-temperature moving from a warm 29.9°C (85.8°F) in August to a still moderately hot 26.5°C (79.7°F). Ikuha maintains an average of approximately an agreeable 21.7°C (71.1°F) during September nights, with only a minimal decrease from the daytime temperature.Humidity
The average relative humidity in September is 76%.Rainfall
In Ikuha, in September, during 15.9 rainfall days, 130mm (5.12") of precipitation is typically accumulated. In Ikuha, during the entire year, the rain falls for 185.7 days and collects up to 951mm (37.44") of precipitation.Snowfall
April through November are months without snowfall.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 18:27. On the last day of September, in Ikuha, sunrise is at 05:54 and sunset at 17:46 JST.
Sunshine
In Ikuha, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ikuha, Japan
- Average high temperature in September: 26.5°C
The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (8.2°C).
- Average low temperature in September: 21.7°C
The month with the highest average low temperature is August (25.2°C).
The coldest month (with the lowest average low temperature) is January (4.4°C).
Average pressure in September
Ikuha, Japan
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is February (1020mbar).
The month with the lowest atmospheric pressure is June (1008.7mbar).
Average wind speed in September
Ikuha, Japan
- Average wind speed in September: 12.4km/h
The windiest month (with the highest average wind speed) is January (18km/h).
The calmest month (with the lowest average wind speed) is June (10.7km/h).
Average humidity in September
Ikuha, Japan
- Average humidity in September: 76%
The month with the highest relative humidity is July (82%).
The months with the lowest relative humidity are February, March and April (70%).
Average rainfall in September
Ikuha, Japan
- Average rainfall in September: 130mm
The wettest month (with the highest rainfall) is July (176mm).
The driest month (with the least rainfall) is February (32mm).
Average rainfall days in September
Ikuha, Japan
- Average rainfall days in September: 15.9 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is May (12 days).
Average snowfall in September
Ikuha, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (24mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Ikuha, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.4 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
Ikuha, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).
Average sunshine days in September
Ikuha, Japan
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is July (7 days).
Average UV index in September
Ikuha, 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
Ikuha, Japan
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Ikuha, 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).





