September weather forecastKomagome, Japan
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Komagome, Japan, with an average temperature fluctuating between 27.2°C (81°F) and 21.3°C (70.3°F).Temperature
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a hot 31.3°C (88.3°F) in August to a warm 27.2°C (81°F). In September, Komagome reports a consistent average low-temperature of 21.3°C (70.3°F) during the nights.Heat index
The heat index value for September is computed to be 29°C (84.2°F). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, 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 are primarily vital for children. 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
The average relative humidity in September is 73%.Rainfall
In Komagome, in September, during 18.5 rainfall days, 126mm (4.96") of precipitation is typically accumulated. Throughout the year, there are 182.7 rainfall days, and 960mm (37.8") of precipitation is accumulated.Snowfall
April through December are months without snowfall in Komagome.Daylight
In September, the average length of the day in Komagome is 12h and 25min.On the first day of September, sunrise is at 05:13 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 Komagome, the average sunshine in September is 7.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 5 in September leads to these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Komagome, 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
Komagome, 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
Komagome, 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
Komagome, 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
Komagome, 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
Komagome, 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
Komagome, 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
Komagome, 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
Komagome, 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
Komagome, 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
Komagome, 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
Komagome, 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
Komagome, 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).
