September weather forecastNakanoshima, Japan
September weather forecast for Nakanoshima, Japan: The first month of the autumn, September, is still a warm month in Nakanoshima, Japan, with an average temperature ranging between min 20.2°C (68.4°F) and max 27.3°C (81.1°F). In Nakanoshima, Japan, during September, the rain falls for 12 days and regularly aggregates up to 34mm (1.34") of precipitation.
September
Weather in September
The first month of the autumn, September, is still a warm month in Nakanoshima, Japan, with an average temperature ranging between min 20.2°C (68.4°F) and max 27.3°C (81.1°F).Temperature
With the onset of September, Nakanoshima's climate undergoes a slight change as the average high-temperature moves from a hot 31.6°C (88.9°F) in August to a moderately hot 27.3°C (81.1°F). Nakanoshima sees an average low-temperature of 20.2°C (68.4°F) during September.Heat index
The heat index value during September is appraised at a hot 30°C (86°F). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
The average relative humidity in September is 75%.Rainfall
In Nakanoshima, in September, during 12 rainfall days, 34mm (1.34") of precipitation is typically accumulated. In Nakanoshima, during the entire year, the rain falls for 149 days and collects up to 436mm (17.17") of precipitation.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 24min.On the first day of September, sunrise is at 05:31 and sunset at 18:24. On the last day of the month, sunrise is at 05:52 and sunset at 17:43 JST.
Sunshine
In Nakanoshima, the average sunshine in September is 9.1h.UV index
In Nakanoshima, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 in September translates into this advice:
Take necessary precautions - Defending against sun damage is advocated. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nakanoshima, Japan
- Average high temperature in September: 27.3°C
The warmest month (with the highest average high temperature) is August (31.6°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in September: 20.2°C
The month with the highest average low temperature is August (24.4°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in September
Nakanoshima, Japan
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is February (1019.7mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).
Average wind speed in September
Nakanoshima, Japan
- Average wind speed in September: 7.9km/h
The windiest month (with the highest average wind speed) is January (10.6km/h).
The calmest month (with the lowest average wind speed) is June (7.8km/h).
Average humidity in September
Nakanoshima, Japan
- Average humidity in September: 75%
The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Nakanoshima, Japan
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is July (79mm).
The driest month (with the least rainfall) is November (20mm).
Average rainfall days in September
Nakanoshima, Japan
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is May (8.7 days).
Average snowfall in September
Nakanoshima, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (35mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Nakanoshima, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6 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
Nakanoshima, 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 6min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).
Average sunshine days in September
Nakanoshima, Japan
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is May (20 days).
The month with the least sunshine days is January (10.8 days).
Average UV index in September
Nakanoshima, Japan
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Nakanoshima, Japan
- Average cloud cover in September: 35
The months with the most cloud cover are January and February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Nakanoshima, Japan
- Average visibility in September: 9km
The months with the highest visibility are February, March, November and December (10km).
The months with the lowest visibility are January, April, May, June, July, August, September and October (9km).
