Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
With September's arrival, Ikenohara notes an average high-temperature of a still warm 27.7°C (81.9°F), closely following the trend of the preceding month. In Ikenohara, September nights experience a modest descent in temperature from daily peaks, cooling down to an average of 23.2°C (73.8°F).Heat index
The heat index for September is appraised at a hot 31°C (87.8°F). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.Heat index determinations are made taking into account the shade and light air movements. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical 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
The average relative humidity in September in Ikenohara is 80%.Rainfall
In September, in Ikenohara, the rain falls for 19.1 days. Throughout September, 110mm (4.33") of precipitation is accumulated. Throughout the year, there are 187.4 rainfall days, and 1247mm (49.09") of precipitation is accumulated.Snowfall
In Ikenohara, Japan, snow does not fall in March through December.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 05:52 and sunset at 18:40. On the last day of September, sunrise is at 06:09 and sunset at 18:02 JST.
Sunshine
The average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Ikenohara is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 6 translates into these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Ikenohara have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Ikenohara, Japan
- Average high temperature in September: 27.7°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 (11.9°C).
- Average low temperature in September: 23.2°C
The month with the highest average low temperature is August (25.3°C).
The coldest month (with the lowest average low temperature) is January (6.9°C).
Average pressure in September
Ikenohara, Japan
- Average pressure in September: 1011.1mbar
The month with the highest atmospheric pressure is January (1021.2mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).
Average wind speed in September
Ikenohara, Japan
- Average wind speed in September: 13.5km/h
The windiest month (with the highest average wind speed) is December (16.4km/h).
The calmest months (with the lowest average wind speed) are June and July (12.5km/h).
Average humidity in September
Ikenohara, Japan
- Average humidity in September: 80%
The months with the highest relative humidity are June and July (86%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall in September
Ikenohara, Japan
- Average rainfall in September: 110mm
The wettest month (with the highest rainfall) is June (281mm).
The driest month (with the least rainfall) is January (40mm).
Average rainfall days in September
Ikenohara, Japan
- Average rainfall days in September: 19.1 days
The month with the highest number of rainy days is June (22.3 days).
The month with the least rainy days is January (11.3 days).
Average snowfall in September
Ikenohara, Japan
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Ikenohara, Japan
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Ikenohara, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Ikenohara, Japan
- Average sunshine days in September: 7.5 days
The month with the most sunshine days is January (17.2 days).
The month with the least sunshine days is June (6.3 days).
Average UV index in September
Ikenohara, 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 and December (UV index 3).
Average cloud cover in September
Ikenohara, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is June (Cloud cover 57).
The months with the least cloud cover are October and November (Cloud cover 36).
Average visibility in September
Ikenohara, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, August, September, October, November and December (10km).
The months with the lowest visibility are May, June and July (9km).
