September weather forecastIkuta, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Ikuta, Japan, with temperature in the range of an average low of 21.2°C (70.2°F) and an average high of 27.2°C (81°F).Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a hot 31.5°C (88.7°F) in August to a moderately hot 27.2°C (81°F). During the nights in September, Ikuta experiences a consistent average temperature of 21.2°C (70.2°F).Heat index
The heat index value for September is appraised at 29°C (84.2°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Always consider that heat index estimations are for light winds and places in the shade. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
In September, the average relative humidity is 72%.Rainfall
In Ikuta, in September, during 11.4 rainfall days, 42mm (1.65") of precipitation is typically accumulated. In Ikuta, during the entire year, the rain falls for 113.9 days and collects up to 334mm (13.15") of precipitation.Snowfall
April through December are months without snowfall in Ikuta.Daylight
The average length of the day in September in Ikuta is 12h and 25min.On the first day of the month, sunrise is at 05:14 and sunset at 18:09. On the last day of September, in Ikuta, sunrise is at 05:36 and sunset at 17:27 JST.
Sunshine
In Ikuta, the average sunshine in September is 8h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 suggests this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ikuta, Japan
- Average high temperature in September: 27.2°C
The warmest month (with the highest average high temperature) is August (31.5°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in September: 21.2°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 (2.5°C).
Average pressure in September
Ikuta, Japan
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Ikuta, Japan
- Average wind speed in September: 11.6km/h
The windiest month (with the highest average wind speed) is April (14.2km/h).
The calmest month (with the lowest average wind speed) is November (11.2km/h).
Average humidity in September
Ikuta, Japan
- Average humidity in September: 72%
The month with the highest relative humidity is July (75%).
The month with the lowest relative humidity is January (58%).
Average rainfall in September
Ikuta, Japan
- Average rainfall in September: 42mm
The wettest month (with the highest rainfall) is October (45mm).
The driest month (with the least rainfall) is February (9mm).
Average rainfall days in September
Ikuta, Japan
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is December (4.1 days).
Average snowfall in September
Ikuta, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Ikuta, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Ikuta, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).
Average sunshine days in September
Ikuta, Japan
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is December (25.3 days).
The month with the least sunshine days is June (13.7 days).
Average UV index in September
Ikuta, Japan
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Ikuta, Japan
- Average cloud cover in September: 39
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 27).
Average visibility in September
Ikuta, 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).





