September weather forecastNisshin, Japan
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Nisshin, Japan, with an average temperature varying between 20.3°C (68.5°F) and 28.2°C (82.8°F).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a warm 28.2°C (82.8°F) from a hot 32.5°C (90.5°F). During September, the average low-temperature is an agreeable 20.3°C (68.5°F).Heat index
For September, the heat index is calculated to be a tropical 31°C (87.8°F). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.One should consider that heat index numbers are for shaded settings and light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In September, the average relative humidity is 72%.Rainfall
In Nisshin, in September, during 14.9 rainfall days, 129mm (5.08") of precipitation is typically accumulated. In Nisshin, Japan, during the entire year, the rain falls for 158.5 days and collects up to 1122mm (44.17") of precipitation.Snowfall
In Nisshin, Japan, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 05:24 and sunset at 18:19. On the last day of September, sunrise is at 05:45 and sunset at 17:37 JST.
Sunshine
In September, the average sunshine in Nisshin, Japan, is 8.7h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Ward off overexposure. Defence against solar harm is crucial. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nisshin, Japan
- Average high temperature in September: 28.2°C
The warmest month (with the highest average high temperature) is August (32.5°C).
The month with the lowest average high temperature is January (7.5°C).
- Average low temperature in September: 20.3°C
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average pressure in September
Nisshin, Japan
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Nisshin, Japan
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is March (10.2km/h).
The calmest months (with the lowest average wind speed) are June and July (7.7km/h).
Average humidity in September
Nisshin, Japan
- Average humidity in September: 72%
The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is May (68%).
Average rainfall in September
Nisshin, Japan
- Average rainfall in September: 129mm
The wettest month (with the highest rainfall) is July (195mm).
The driest month (with the least rainfall) is January (34mm).
Average rainfall days in September
Nisshin, Japan
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Nisshin, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (26mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Nisshin, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Nisshin, 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 42min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in September
Nisshin, Japan
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Nisshin, Japan
- Average UV index in September: 6
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
Nisshin, Japan
- Average cloud cover in September: 38
The month with the most cloud cover is July (Cloud cover 44).
The month with the least cloud cover is November (Cloud cover 31).
Average visibility in September
Nisshin, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).
