September weather forecastSenju, Japan
September weather for Senju, Japan: The first month of the autumn, September, is still a warm month in Senju, Japan, with temperature in the range of an average low of 21.3°C (70.3°F) and an average high of 27.2°C (81°F). In Senju, during September, the rain falls for 18.5 days and regularly aggregates up to 126mm (4.96") of precipitation.
September
Weather in September
The first month of the autumn, September, is still a warm month in Senju, Japan, with temperature in the range of an average low of 21.3°C (70.3°F) and an average high of 27.2°C (81°F).Temperature
Senju's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's tropical 31.3°C (88.3°F) to a warm 27.2°C (81°F). During September, Senju witnesses a consistent average low-temperature of 21.3°C (70.3°F).Heat index
In September, the average heat index is appraised at 29°C (84.2°F). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In September, the average relative humidity is 73%.Rainfall
In Senju, during September, the rain falls for 18.5 days and regularly aggregates up to 126mm (4.96") of precipitation. Throughout the year, in Senju, there are 182.7 rainfall days, and 960mm (37.8") of precipitation is accumulated.Snowfall
In Senju, snow does not fall in April through December.Daylight
In Senju, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:12 and sunset at 18:08. On the last day of the month, sunrise is at 05:35 and sunset at 17:26 JST.
Sunshine
In Senju, the average sunshine in September is 7.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Senju, Japan
- Average high temperature in September: 27.2°C
The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in September: 21.3°C
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (2.4°C).
Average pressure in September
Senju, Japan
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Senju, Japan
- Average wind speed in September: 11.9km/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 (11km/h).
Average humidity in September
Senju, Japan
- Average humidity in September: 73%
The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is January (60%).
Average rainfall in September
Senju, Japan
- Average rainfall in September: 126mm
The wettest month (with the highest rainfall) is October (129mm).
The driest months (with the least rainfall) are January and December (40mm).
Average rainfall days in September
Senju, Japan
- Average rainfall days in September: 18.5 days
The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Senju, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (43mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Senju, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3 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
Senju, 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 36min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in September
Senju, Japan
- Average sunshine days in September: 7.8 days
The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is June (7.7 days).
Average UV index in September
Senju, 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
Senju, Japan
- Average cloud cover in September: 42
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 27).
Average visibility in September
Senju, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, May, August, November and December (10km).
The months with the lowest visibility are April, June, July, September and October (9km).





